When the Introverted Me Got Surrounded by S-Tier Beauties After a Seat Change, a Secret Relationship Began V2 Chapter 4

Chapter 4

Summer, Pools, Pickup Lines, and Swimsuits


After getting back from our super-fun, two-day, one-night bug-catching trip in the countryside, I took a bath, went straight to my room, and passed out.

It had been a seriously amazing two days.

I’d gotten to dive into Airi's massive knockers, sneak glances at them while she slept beside me, and even catch a glimpse of her giant bra on the way home…

Drifting off to sleep, I reminisced about all the memories packed with giant boobs.

And so—I woke up to the morning of the next day.

"Ngh? Kinda… hot in here, isn't it…?"

When I opened my eyes, I realized something was off about my room.

Th-This is weird.Even though the air conditioner was on, it wasn't cool at all. I figured I’d been so tired yesterday that I forgot to set the timer and fell asleep with the fan on… but for some reason, it had stopped. I was sure I’d conked out without charging my phone, but for some reason, the cable was plugged in.

What the hell was this weird feeling…? If this were The Ex●t 8, I’d turn back immediately…

As I blinked my sleepy eyes in confusion, someone started wiping the sweat from my brow with a white handkerchief… wait, huh!?

"Ah, good morning, Ryouta-kun."

No, wait—it wasn't just 'someone.' It was Kuroki Rui.

Rui was wearing a cute, modest outfit, but for some reason… she also had on a heart-patterned apron.

"Wh-! Rui!? What are you doing here!"

In my shock, I shot up from my bed and scrambled back against the wall.

"What do you mean…? The track team has the day off today, right?"

"That's not it! What are you doing in my room on a summer morning!" I had to cut in, since Rui was carrying on the conversation like it was the most normal thing in the world.

She'd been in my room before I woke up in the past, but I never expected it to happen during summer break, too.

"Don't tell me… you're here to carry out that 'punishment'?"

"Oh my, 'punishment'? What an awful thing to say."

"You're the one who said it!"

"There, there. Calm down, Ryouta-kun." Rui soothed me with her gentle words.

Why am I being calmed down by my home-invading classmate?

"The punishment is for another time, m'kay?♡"

"What are you planning? A whip? Or are you gonna mount me?"

"I wouldn't do something that awful, you know? Besides, if I disciplined your body, you'd just enjoy it, wouldn't you, Ryouta-kun?"

Damn… she really gets me. But she also just casually dropped some seriously messed-up words there at the end.

"Well, it's no wonder you can't grasp the situation. You were the only one who hadn't read the messages, after all."

"R-Read the messages?"

"Airi made a new LINE group yesterday. Didn't you know?"

"A group…?"

Nope, had no idea.

Prompted by Rui, I picked up my phone. Sure enough, there was a mountain of LINE notifications.

"Wh-What is this?"

"Airi made it, saying we'd probably all hang out during summer break. The three of us already had a group, but you and Tanaka-san weren't in it, Ryouta-kun."

"Well, me aside, Tanaka is… ah, whatever."

Good for you, Tanaka. You made some friends. With that random thought, I checked the conversation in this so-called LINE group. The group name was 'The 5 Best Friends'… so very Airi-like.

'Tanaka: I'm so moved that even a shut-in like me has been allowed into a LINE group!! Please be nice to me!!'Y-Yikes… Tanaka's LINE message is screaming 'total shut-in.' By the way, she hadn't said anything else on her own after that. That's a true introvert for you.

'Yuria: btw rui, u have the day off from club tmr, right? wanna go somewhere, everyone?''Rui: Yep. I'm fine with anywhere, but… how about the pool?''Airi: The pool! I agree! Airi wants to go too! How about you, Tanaka-chan?''Tanaka: Yes, I am also available.''Airi: Great! And Ryouta's sleeping or something, but he doesn't get a vote during summer break, so it's decided that Ryouta is coming too!'Huh? You've gotta be kidding me. The pool, right after our trip? Does Airi even know what fatigue is…? …Hm?

"Wha—!!! Hey!? The p-p-p-pool, you say!!!? Swimsuits!?!?"

"Ryouta-kun, your lower half is getting excited."

"Hah! N-No! This is just morning wood. It's a physiological phenomenon."

"Fufu. My swimsuit… did you imagine it?"

Well, actually I was imagining Airi's massive-breasted school swimsuit, but…

"So, with that, it's been decided that we're all going to the pool today. We're meeting at your house at 9, Ryouta-kun."

"I-I see… First off, I'd appreciate it if you'd stop making my house the meeting spot without my permission."

"Hey, Ryouta-kun. My swimsuit… wanna see it a little, before we go?" Rui hooked a finger into her collar, trying to give me a little peek.

Whoa… that's hot."W-Well, o-of course I wanna see."

"Fufu… as honest as ever. Such a good boy. But you'll have to wait until the pool for the swimsuit, okay?"

Th-This girl… toying with a virgin's pure heart like that…!And so, it was decided that I'd be going to the pool with three beautiful girls, plus Tanaka.

"S-So, I get that we're going to the pool… but why are you wearing such a cringey, heart-patterned apron?"

"Hm? Because I made breakfast for the Izumiya family today♡"

"…Huh?"

I had no idea what she was talking about…

"Come on, Ryouta-kun, hurry up."

W-Well, whatever. The day doesn't start until I've had breakfast. Still, I can't for the life of me figure out how Kuroki Rui got so close to my family that she's making breakfast… though the fact that she's sneaking into my room while I'm asleep is a mystery in itself, so I'll just stop thinking about it. Besides, my sister always eats my breakfast, but if Rui made it, I'm sure that won't be an issue. So I'm grateful.

"Now, Ryouta-kun, I've laid out your clothes on the desk, so wash your face and get changed, okay?" Rui prompted me to get ready like some kind of maid.

Being served by a beautiful girl like this is a reward in its own way… but with Rui, it always feels like there's some kind of scheme or ulterior motive…

"Also, I moved the dirty books you love so much from the gap in your bookshelf, along with the related goods, into the closet so no one would find them."

"Wh-Whaah! H-Hey! What do you think you're doing!? Those are my treasures (fap material)!"

"And I confiscated some of the 'dark-skinned gyaru' and 'super huge-breasted' ones because they're bad for you. I'll be sure to transfer the money for them to your bank account later, Ryouta-kun."

"Y-Y-Youuuu! Get out! You demon!"

She's not just a home-invading classmate, she's the Chairman of the Fap Material Confiscation Committee… If I don't ban Rui from the house, she might start managing that side of my life, too.

☆☆

When I went downstairs for breakfast, it was already past 8, so no one was home except for me and Rui. My dad's at work, my mom's at sepak takraw eight times a week, and my sister is also inexplicably absent. Mornings during summer break are always like this, and as usual, there's a single memo on the dining table.

This memo probably has my family's schedule for the day written on it… huh.

'Make sure you wear a rubber. -Sis'"Seriously. Like I would, you idiot."

"Ryouta-kun, you can't do it raw, you know?"

"That's not it! I meant I'm not doing it at all!"

"Just kidding, just kidding. I'll get breakfast ready." Rui giggled and headed for the kitchen.

When you say it, nothing sounds like a joke."I've been thinking this for a while, but… Rui, you're surprisingly okay with dirty jokes, and you even make them yourself."

"Hmm? I don't think so."

You totally are. Without a doubt."But if I had to say, I'm so used to being an honor student that, as a rebound, my mouth might get a little loose when I'm with you, Ryouta-kun. I can say dirty jokes to you and it's fine."

"Wh-What's that supposed to mean?"

"It means that in front of you, Ryouta-kun, I can show the side of me that isn't perfect… is what it means." Rui said with a wink as she brought the warmed-up breakfast to the table.

In other words… what the heck does that mean?"I'm a girl too, you know… so there are times I want to talk a little about 'that' stuff."

Come to think of it, Yuria also said before that girls have strong libidos… I wonder if that's just how it is? Maybe because we were talking about it, even the way the sausage and cherry tomatoes are arranged on the plate is starting to look like a dirty joke… No, no, I can't think like that.

"Airi and the others will be here at 9, so you should eat up, Ryouta-kun."

"Ah, yeah…"

Just as I was told, I started eating the breakfast Rui had prepared. The menu was white rice, miso soup, sausage, scrambled eggs, and some cherry tomatoes and lettuce. I imagined that if Rui were cooking, she'd use more high-end ingredients and make something flashy… but it was surprisingly simple.

Is it a case of 'simple is best'… no, that's not it. It's probably just that our fridge is pathetic.

"Ryouta-kun, if there's anything you don't like, I'll eat it for you, okay?"

'I'll eat it for you'… huh. I want to punch myself for the split second I almost said "mysausage."

"By the way, did you have fun on your bug-catching trip?"

Suddenly asked about the trip, the sausage I was holding slipped from my chopsticks.

"A-Are you… not mad, Rui?"

"Mad? Why?"

"Well, from your LINE message, I thought you were."

"Why?"

"No, I mean…"

"Ryouta-kun, did you do something with Airi that you should feel guilty about? Something that would make me mad?"

"N-No… I didn't! Absolutely not!"

"Then it's fine, isn't it? Or… do you want me to be mad at you, Ryouta-kun?" Rui kept smiling as she talked, but it didn't feel friendly at all.

Oh crap, I'm breaking out in a cold sweat…"Fufu… you're cute when you're scared too, Ryouta-kun."

"Y-You sadist."

"And you're a masochist, aren't you, Ryouta-kun? I found a lot of books of that persuasion."

"D-Don't just go through my stuff without permission!"

"Fufu, but that just means we're a good match, doesn't it?"

She's trying to toy with a virgin like me with her clever words… I'm completely dancing in the palm of her hand, but as an unpopular guy who finds even being teased by a girl to be a reward, I can't help but think it's not so bad. In the first place, being teased by such an unbelievably beautiful classmate and just thinking "oh well" is probably something only a light novel protagonist would do.

O-On the other hand, I wonder… what does Rui think of me?"…Hey, Rui, are you…"

"Excuse me!! Oh! Rui-chan's shoes are already here!!"

I heard a massive-breasted girl with a child-like voice from the entryway and turned around to see Airi stomping in, holding a floatie and a pool bag.

"Morning, Ryouta! Oh, you're eating breakfast! Lucky!"

"Morning, Airi. Where are the other two?"

"They're all here! See?"

Just as Airi said that, Yuria and Tanaka slowly followed her in.

"Morning, Ryouta, Rui."

"Morning, Yuria. And Tanaka-san, too."

"Ah, um! Thank you for inviting me today!"

Tanaka's so stiff… It can't be helped. This is probably her first time hanging out with friends like this.

"Ryouta, hurry up and eat! We're going to the pool!"

"I-I get it, don't rush me."

As I was eating my breakfast, the beauty trio plus Tanaka suddenly gathered in my living room. It's still 8:20. Rui said the meeting time was 9… geez, these guys are so hasty.

"I'll take Ryouta's sausage!"

"Ah."

While I was spacing out, Airi snatched the sausage off my plate.

"Mmmph, yummy~"

T-To eat my sausage in one bite like that… Watching Airi with the sausage in her mouth fills my head with wicked fantasies.

"Hey, Airi. That's bad manners."

"Want some too, Yuria? There's one more."

"No, I'm good. Ryouta's breakfast will be gone." Yuria said with an exasperated look, glancing at my breakfast.

"Btw, did Rui make this? And what's with that apron?"

"Isn't this apron cute? Ryouta-kun's mom had sepak takraw today, so I made breakfast for the family."

"Seriously? Rui, how close have you gotten to Ryouta's family?"

"Eh? I think it's normal since we're friends."

It's not normal to make breakfast for your friend's family!"More importantly, Ryouta! Hurry up and eat so we can go to the pool!"

"A-Alright, alright."

Urged on by Airi, I wolfed down my breakfast and was about to get ready for the pool… but.

"Wait a minute, Ryouta-kun."

"Hm?"

"I've packed your swimsuit and bath towel in this bag. Here."

Rui took out a bag from somewhere and handed it to me. It seems she had prepared it for me in advance.

Rui is so considerate it's scary… or rather, I'm an introvert, so I shouldn't have any swimsuit other than my school-issued one…

Thinking that, I looked inside the bag and found a stylishly patterned swimsuit that looked like board shorts.

"I figured you wouldn't have a swimsuit, Ryouta-kun, so I bought you one. I'll just offset the cost with the money from, well, you know."

Th-This girl… is way more capable than I ever imagined. Ah, this is bad. At this rate, I'm going to become completely dependent on Rui.

"Fufu…" Rui smiled at me, looking as if she had it all figured out.

☆☆

With our preparations complete, we headed off to the pool. When we left the house, Rui was locking up for some reason, but I decided it was a waste of time to even thinkabout it and just started walking.

"So, which pool are we even going to?"

"The big water park in the next town!"

"Huh…? That place is expensive. Isn't the city pool good enough?"

"Are you serious, Ryouta? A pool with no water slide is boring."

"Yeah, yeah! Airi wants to go down the water slide with you, Ryouta!"

"Me, with Airi… on a water slide."

T-To be able to legally press Airi's massive boobs against my back… what a stroke of luck (premeditated, of course). I reveled in the blissful thought of Airi's massive boobs, which I had just experienced the other day, pressing against my back.

"Alright, the water park and the water slide it is."

The moment I said that, Yuria and Rui pinched both of my arms hard.

"Ryouta, your ulterior motives are showing."

"Ryouta-kun, let's ride it together, okay? With me, the one with no boobs."

Damn… these girls… they've completely figured me out…In the first place, when an introvert like me goes to a pool—a hangout for extroverts—the only things to do are stare at Rui's navel, stare at Airi's massive boobs, or stare at Yuria's thick thighs. In the end, we decided to go to the large water park in the next town and headed to the station.

That aside…

The three beauties started walking ahead of me, discussing how to get there, so in the meantime, I turned around.

"Hey, Tanaka, you've been completely silent for a while. You good?"

"Wh-What do you mean, silent! I'm right here! Behind all of you!"

"Why've you been so quiet? It's not like you."

"W-Well… an introverted girl like me tends to get awkward with people I haven't seen or talked to in over a week."

Th-That's taking introversion to an extreme… Even I'm not that bad. Well, I knew Tanaka would be like this to some extent. I guess I should help her out a bit.

"You're a little dressed up today, aren't you? A white one-piece dress. You never wore stuff like that in middle school."

"Sh-Shut up! My days of wearing tracksuits as casual clothes are over!"

That's right… in middle school, Tanaka always wore a tracksuit when she came over. I also basically only wore tracksuits until middle school, so I didn't mind.

"I… also made an effort, realizing that tracksuits are lame. Of course, I don't have the same fashion sense as the three of them, and my body isn't… anything special…" Tanaka glanced at the trio and placed a hand on her own flat chest. She was unusually nervous today. I wonder if, from a girl's perspective, being with those three makes you feel that way.

"Don't worry about it, Tanaka. You're always saying yourself, 'There's definitely a demand for me among lolicons and the glasses-huffing faithful,' right?"

"I-I never said that! I don't think that! And what the heck is the 'glasses-huffing faithful' anyway!"

When I said it half-jokingly, Tanaka, as expected, blew a gasket.

"There, there. That's the usual Tanaka."

"…Sh-Shut up! As long as you praise me, Ryouta-kun… that's… all I need."

"Me? Oh. Well, yeah, I guess so."

"Eh…?"

"An introvert of my level has a discerning eye for beautiful girls. If I praise you, other guys will definitely fall for you in an instant."

"…Hah." For some reason, Tanaka let out a big sigh.

"Wh-What's with that sigh?"

"Yeah, yeah, whatever, virgin."

"Y-You don't have any relationship experience either!"

"I… wonder about that? At the very least, I've been in love more than you have."

"Eh… You weren't just a BL fan!? Hey, details!"

"No way."

☆☆

To get to the water park, the five of us walked to the nearest station and took the train. After a short wait, we got on and found three empty seats, and the two seats opposite them just happened to open up as well.

We'll have to split into groups of two and three.

Alright, I'll slyly sit in the middle of the three-person seat, a beauty on each arm…"Yo Ryouta, we're sitting here."

"Eh, Yuria?"

"Airi, Rui, and Tanaka can have the three seats."

"Hey, why?" Yuria pulled my hand and sat me down next to her without giving me a choice. In the opposite seat, Tanaka somehow ended up in the middle, with Airi and Rui on either side.

Because it was cramped, I could see Airi's huge boobs pressing against Tanaka's small frame as she leaned toward her.

D-Damn you, Tanaka…! Airi's boobs…! I'm so jealous of that beautiful girl sandwich! Switch with me!"Damn it, Yuria. Why'd you do this?"

"There's no 'why'… You've been staring at Airi's chest way too much since this morning. Give it a rest." Yuria sighed and whispered, slightly adjusting her thigh-hugging hot pants.

"Wh-What's your problem? Are you telling me not to look at Airi's chest? That's an infringement on my right to view boobs."

"No such right exists. Stop making up creepy new words."

"B-But, you know. If I don't look at Airi's huge boobs, my eyes will rot or something."

"That's why I told you before, that kind of thing… at least limit it to my thighs."

Airi tells me to only look at her chest, and Yuria tells me to only look at her thighs… why are they so willing to sacrifice themselves like that? Pondering this, I decided to continue our conversation in a low voice.

"For now, I'll reflect on staring at Airi's boobs too much this morning. But you had to know that if you took me to a pool, I'd end up staring at nothing but her boobs and your thighs, right?"

"Even so, everyone thinks it's more fun with you here, Ryouta."

"Eh? R-Really?"

"But if you just stare at Airi's chest, I'll smack you, no questions asked. Got it?" Yuria cracked her knuckles and poked my cheek with her index finger.

"Y-Yes, ma'am. I will be sure to gaze intently not only at Airi's chest but also at your thighs, Yuria."

"…Yeah, yeah. That's fine." Pouting her lips as if displeased, yet somehow looking satisfied, Yuria nodded and removed her finger from my cheek.

In the first place, Yuria is way too tolerant of me looking at her…

"Yuria, maybe you don't mind me looking at your thighs because you're my good friend, but normally, don't you hate being looked at like a creep?"

"You're the one asking that?"

"Well, I was just wondering."

"Hah… I've told you so many times, Ryouta, you're special. I wouldn't even let any other guy get close to me."

"O-Oh…"

I can't tell if Yuria's guard is high or low.

"By-the-way, in that case, there's something I wanna ask you."

"Hm?"

"Yesterday… did you do it with Airi?" Yuria averted her gaze toward Airi and muttered the question.

N-Not this again! First Rui, now you. Why is everyone misunderstanding?"Of course not. Think about it. Besides, you confiscated my rubber."

"So if you had rubber, you would have done it?"

"…W-Well, I think I might have. Probably."

"Such a virgin. I knew you couldn't do it, Ryouta."

"Wh-What's that supposed to mean!"

"Cause you're gutless. Well, when I heard from Airi that you were staying over, I was relieved, knowing you wouldn't pull anything, Ryouta." Yuria smirked and taunted me.

D-Damn… The painful part of being an introverted virgin is not being able to argue back."Wh-Whatever, I'm a gutless virgin for life. Got a problem with that?"

"Jeez, don't get all pouty. Well? If no one wants you for the rest of your life, I guess I can take you off their hands."

"Y-You… always teasing me like that. But since you said it, it's a promise. Even if you're married, you have to take responsibility and take me."

"No, that's just plain illegal. You read too many dirty doujins." For someone who teases a virgin, Yuria sure throws common sense at me. NTR is a no-go.

"Btw Ryouta, that's not what I wanted to say."

"Eh? What do you mean?"

"…Well, whatever. More importantly, we're getting off at the next station."

"O-Oh." Yuria's earlier vigor was gone, and she seemed somewhat awkward.

☆☆

The water park was so well-equipped you could tell even from the outside. As soon as we arrived, we bought tickets and went in.

"Well then, Ryouta. Once you're done changing, wait for us outside, okay?"

"O-Oh."

I saw Airi and the others off to the girls' changing room and headed to the boys' changing room myself. Of course, I want to see the three beauties in their swimsuits as soon as possible.

Hurry, hurry!I stylishly stripped off my clothes, put on the swimsuit Rui bought for me, and went outside.

And then—

"…Ah, Ryouta-kun. You were quick."

Outside, Tanaka was standing all by herself.

T-Tanaka… and that swimsuit is…"What's with that disappointed look! That's incredibly rude!"

"No, you… you're wearing a school swimsuit."

Yes, Tanaka's swimsuit was, of all things, a school swimsuit. Moreover, in her case, her body shape hasn't changed since middle school, so it's probably the same well-worn school swimsuit from back then…

"I-It can't be helped! We only decided to go to the pool yesterday, and besides, there's no way an introvert would own a cute swimsuit!" Tanaka, who was likely wearing contacts, shouted, her face bright red.

That's certainly true. I only have one because Rui bought it for me. Still, Tanaka, partly because of the school swimsuit… looks really petite like this.

"H-Hey, Ryouta-kun! Don't stare so much."

"…"

"C-C'mon… Ryouta-kun."

Her thighs are about half the size of Yuria's, her waist is so thin it looks like it would snap… and most of all, Tanaka, your chest!

"Let's eat a lot more, Tanaka."

"Th-That's none of your business!!"

"Sorry to keep you two waiting!"

"Hh!"

When I turned around… an incredible sight awaited me. The three beautiful girls, having finished changing, had come out.

"R-Ryouta-kun… this is, a-amazing."

"Yeah… in more ways than one, this is insane."

I was prepared to see them in swimsuits since we were at a pool, but… I never expected the three of them to be this beautiful and eye-catching.

"Fufu… Ryouta-kun, what do you think?"

Rui, wearing a cross-line black bikini with a white see-through cover-up, had her usual long hair tied up in a ponytail, draped over her right shoulder. In a swimsuit, Rui's figure looked even more slender. Her arms and legs were perfectly toned, without an ounce of unnecessary fat. She was showing off a style more perfect than a model's. And Rui's navel… was hundreds of times more erotic than when I see it in pictures. Just the fact that it was right in front of me made it hard to resist the urge to gently trace it. I managed to hold back, somehow.

"Sorry to keep you waiting, Ryouta… so, what do you think of my swimsuit?"

Yuria had black sunglasses perched on her head and was wearing a bright red off-the-shoulder bikini. Needless to say, Yuria's plump, thicc thighs were so alluring that I wanted to cling to them like a koala, and my eyes went straight there. But in contrast to her thighs, her waist was firmly toned, and that gap emphasized her great figure. And while not as big as Airi's, Yuria's chest was definitely large. Thanks to the swimsuit, the size and beautiful shape of her breasts were more visible than in her uniform, and I could clearly see that Yuria had beautiful breasts.

"Ryouta, Ryouta! What do you think of this swimsuit! It's cute, right?"

And… as expected, the one who catches my eye the most is Airi. She wore a vivid pink bikini, but her boobs were so overwhelmingly large that the bikini itself was barely noticeable.

S-So this is the presence of massive boobs that surpasses the swimsuit itself… huh. A master craftsman isn't picky about his tools… no, it's 'Huge boobs aren't picky about their swimsuit.' 

Normally, a swimsuit's job is to hide sensitive parts, but in Airi's case, her boobs themselves were so massive that the swimsuit wasn't really functioning. If a kid saw this, they wouldn't be able to sleep at night… in more ways than one.

"Hey, Ryouta, I asked for your opinion on the swimsuits."

"That's right, Ryouta-kun. What's wrong? You suddenly went quiet."

As I was getting worked up in my head, my eyes wide, Rui and Yuria cornered me.

"Ah, no… you're all so cute, I was just captivated… The destructive power is insane."

"Destructive power, really?"

"Fufu… oh, Ryouta-kun."

Even though the three of them look amazing, I shouldn't stare too much.

"Ah, Airi-tan. If you'd like, won't you come over to my place sometime? I'd love it if you wore a cow-print bikini." Tanaka pleaded with Airi, snuggling up to her like a creepy otaku.

Th-This girl… how can she suddenly be so bold!

"Cow-print? Hmm, okay! Airi loves cows!"

"Yay!"

N-No way, that bastard Tanaka! She did it! A moment ago, I thought swimsuits didn't matter for Airi (and her huge boobs)… but if it's cow-print, that's a different story. Cow-print × huge breasts is the dream, hope, and future of all otaku. Especially a picture of Airi in a cow-print bikini with her massive boobs… o-of course I want it.

"H-Hey, Tanaka… the price for that photo is…"

"Hmph… then how about 4."

"Alright, deal."

"Hey, don't you two make weird deals. Airi, no, they're thinking bad things."

"Huh? Bad things? Is that true, Tanaka-chan?"

"Eh, well, um…"

"Tanaka, confess."

"E-Eh?"

Tanaka, being grilled by Yuria and Airi.

Tanaka… you better talk your way out of this. For the sake of our cow-print."Ryouta-kun, can I have a word?"

"Hh! Wh-What is it, Rui?"

While I was watching the three of them as if it were someone else's problem, Rui was suddenly beside me.

"My swimsuit… is it cute?"

"C-Cute, yeah. Of course…"

"Ehh? Explain in more detail."

What's with that… so unlike you. Are you some kind of high-maintenance girlfriend?"Um, Rui, you have an amazing figure, and the black swimsuit looks great on you, and your arms and legs are slim, and also—"

"Fufu… what a liar you are, Ryouta-kun."

"Eh? A-A liar?"

"When what you really like is right here." Rui gently placed her index and middle fingers on either side of her navel, spreading it slightly to show me.

Nghh!? R-Rui's, n-navel, is…!"Fufu… it's written all over your face, Ryouta-kun."

"Hh!?"

"Just as I thought… fufu, just as planned." Rui's eyes narrowed as a smile played on her lips.

"You've been looking at it a lot this past month, haven't you, Ryouta-kun? My navel."

"N-No way, the reason there's so much navel in your usual selfies is…"

"It-was-on-pur-pose, you know? Ryouta-kun?" Rui narrowed her eyes with a triumphant look.

Damn it! So even my fetish was being controlled by Rui!? The navel that grabbed my heart the first time I saw Rui's photo… was it all just bait she cast to control me!?

"Fufu, how is it? You're happy, right, Ryouta-kun?"

"…Yeah… that's right."

"Heh?"

"I love your navel, I always zoom in on it on my phone, and I love it so much I even made a folder for it! Your navel!"

"…!"

Overwhelmed by the summer heat, confusion, and excitement, my tension completely bugged out, and I ended up making an outrageous confession.

"…You like my navel that much."

"Of course!"

"H-Hmph…" Hearing my confession, Rui suddenly became hesitant, blinking and blushing slightly.

Ah, crap… did she think that was gross, even for her?"S-Sorry, Ryouta-kun. I think I need to go to the restroom before we swim."

"Eh? O-Oh…"

"Oh! Rui-chan, you're going to the restroom? Then I'll go too." As if following Rui, Airi also went, her chest bouncing.

Rui… was acting kind of weird. Well, it's Rui. I'm sure she'll be back to normal when she returns.

"Jeez, Rui and Airi. I told them to go to the bathroom before changing." Yuria watched the two of them go with a sidelong, exasperated glance.

"But I'm worried about those two… they seem like they'd get hit on."

"You think? I think they'll be fine if Rui's there." If anything, Rui's beauty would attract guys, and Airi goes without saying. Do these girls not realize how much they stand out?

"Then I'll go with them. If any pickup artists show up, leave it to me. I took karate, you know. For about two weeks."

"I didn't know that… but well, I'm counting on you, Tanaka."

"Then I'm leaving Ichinose-san's bodyguard duties to you, Ryouta-kun."

"O-Oh." And so, I became Yuria's bodyguard.

"Ryouta, you gonna protect me?"

"Eh, well… yeah, I guess. If a guy like me is next to you, they'll probably think I'm your boyfriend. It should ward off other guys."

"…Hmph. Then maybe I'll let my boyfriend Ryouta protect me." Yuria grinned teasingly, trying to fluster me.

Y-You, Yuria…"We'll get separated if we move around too much, so we should just wait in that pool over there, right?"

"Ah, yeah."

Left alone with Yuria, we decided to wait for the others by dipping our feet in a nearby pool. Yuria and I sat on the poolside, our feet in the water. 

When we sat down, Yuria's plump thighs spread out, and just looking at them made me want to rest my face on them.

Wh-What is this… these cushion-like thighs. H-How shameless!"Ryouta, your eyes are getting pervy."

"What's wrong with that! You're the one who told me to look in the first place, Yuria!"

"Even so, you're supposed to show some restraint."

"No! Not in this case! If I can look all I want, I'll look until the sun goes down!"

"Hah… you never change, Ryouta. Well, I'll let it slide since it's me, but don't be so aggressive with Airi or Rui." I thought she'd be really exasperated, but while Yuria was exasperated, she was also smiling softly.

"Ryouta, do you like thighs that much?"

"Of course. There are no other thighs as wonderful as yours."

"O-Oh. Thanks." Maybe because I complimented her, Yuria's cheeks turned a faint red.

To blush when her thighs are complimented… Yuria has a girlish side to her. I hope this prompts her to show off her thighs more.

"B-But, you know. In middle school, guys used to tease me, calling me 'thunder thighs' and stuff. My best friend always defended me."

"…Best friend?"

"My gyaru friend from middle school. The one I told you about, how we had a falling out after she found out I was an otaku and I ended up alone."

"Ah, yeah, you mentioned that."

"…Back when we were close, we were always messing around together. We were the best duo."

As I listened to her wistful story, I finally shifted my gaze from her thighs to her face. Yuria was staring off into the distance with a nostalgic expression, as if reminiscing. Just like before, whenever Yuria talks about the past, her face becomes somewhat sad. Is it regret or something else… I don't know.

 But…

"I-I think both gyaru Yuria and otaku Yuria are super cool, and when you're with Rui and Airi, you're so responsible and amazing, and I would never make fun of your thighs, and also!"

As I was spinning words to support her, Yuria poked my cheek with her index finger.

"Calm down, Ryouta. What's this? Are you jealous because I was talking about my ex-best friend?"

"Hah? N-No! I-I was just… trying to tell you that I wouldn't make you feel sad!"

"Ryouta…"

Now that I've said it, that might have been really lame. Because Yuria looked sad talking about her old friend, I tried to appeal to her by saying I wouldn't make fun of her… Aah! That's such a creepy otaku move!

"You're usually such a pervert. But sometimes, you say cool things, Ryouta."

"Eh? But I was just being honest."

"Then it's even cooler." Before I knew it, Yuria's smile had returned.

Yuria usually has a cool, aloof expression, but when she laughs, her smile is unfairly cute.

"I'm your number one supporter, Ryouta, but I realized you're my number one supporter too. I guess we have a really codependent relationship. It's funny."

"Wh-Why are you laughing?"

"Because I'm happy, obviously!" With that, Yuria suddenly pulled my hand and dived into the pool.

"H-Hey! Wait!"

Pulled by Yuria into the water, I faced her underwater, letting out bubbles of air. The lukewarm water, the blurry vision. And yet, somehow… there was a warmth in our hands. It made me feel our connection even more strongly.

…Ngh, crap, I'm out of breath!I was running out of air, so I tried to surface, and Yuria came up with me.

"Haaah, that feels good!"

"Bwah! What was that for, Yuria!"

"What's the big deal? Hey, more importantly, Ryouta, I'm in a really good mood right now, so as thanks for saying something nice, I'll grant you any wish."

"Huh? A-Anything!?"

Whoa, whoa, is it okay to have such a lucky turn of events! I just honestly didn't want to see Yuria with a sad face, but… ohoho~, I guess if you live honestly, lucky perverted things happen! This is the best!

"A-Ahem… well then… since you'll do anything for me, could I please thrust my face into your thighs, Yuria-san, and have you do a 'puff-puff' with them?"

[Note: Puff-puff is an onomatopoeia that conveys a woman's breasts being rubbed in someone's face. -Wikipedia]

"Oh, no, that's not allowed."

"Wh-! Why not! Do it! Please!" I splashed my feet in the pool, whining like a spoiled child.

"Just so you know, nothing lewd. We're not even dating yet."

"No way… wait, hm? Yet?"

"Ah…! Um, sorry. That's not what I meant."

Just as Yuria started to panic, a'boing boing'sound approached from behind.

Th-This is coming from… Airi?"Ryouta!! Yuria!! This is bad, this is bad! Tanaka-chan's being hit on!"

""Huh!?!?""

☆☆

We received a report from Airi that "Tanaka is being hit on," a claim of highly dubious authenticity, and immediately rushed to the scene…

"Hey, hey, what elementary school are you from?"

"We're from East Elementary."

"Uh, umm, I…"

The ones hitting on Tanaka were… of all things, a trio of elementary schoolers.

…Huh?"H-Hey, Airi? Tanaka is definitely being hit on, but they're elementary schoolers, right?"

"Yeah. We were waiting for Rui-chan to come out of the restroom when they suddenly…"

"N-No, if they're just elementary schoolers, you didn't need to call us."

"Of course I tried to step in. But those kids told me, 'Get lost, fatty tits!'… so I had no choice."

These kids… not only are they hitting on Tanaka, but they're calling Airi fat… they're going to regret this so much in a few years. A girl with such massive boobs and a cute face is, without exaggeration, a once-in-a-century existence.

"Jeez, what kind of kids don't appreciate Airi's (massive boobs') good qualities?"

"Eh? O… Oh, Ryouta! You're praising Airi too much!"

"I don't think so. Saying something like that to an Airi with such a great figure… they really have no taste."

"Ehehe, Ryouta, you're so good at compliments. You're making me blush… wait! That's not the point! It's about Tanaka-chan! We have to go help her!"

"By-the-way, elementary schoolers hitting on someone? Are kids these days too precocious? Or am I just out of the loop?"

"No, they're just plain precocious."

Their precocious brat factor is off the charts. It seems they're hitting on Tanaka thinking she's a slightly tall elementary schooler. No, even for a petite Tanaka, I don't think she looks like an elementary schooler… Are they mistaking her for one because of the school swimsuit? Well, in the world of elementary schoolers, being popular is decided by how fast you can run. They have no way of knowing that once you get to middle and high school, things like running speed and height don't matter, and it's all about your looks and body.

"Guess I have no choice. I'm going to go help Tanaka, so you two stay here."

"Sorry to keep you all waiting… oh, where's Tanaka-san?" Just as I was about to go help, Rui came out of the women's restroom.

"Ah, Rui. Actually, Tanaka's getting hit on over there. By elementary schoolers."

"Hmph… elementary schoolers. Then, Ryouta-kun, you're a boy, so take care of it, please." Rui seemed unusually indifferent and passed the buck to me.

What's with Rui? She could at least say, "Should I go?"… Man, I'm not good with elementary schoolers. Still, I took a step forward to help Tanaka.

"Uh, excuse me. Can I have a word?"

When I called out to them, the elementary schoolers all turned to look at me.

"What is it, mister? We're hitting on a girl right now."

"Don't interrupt. And who are you anyway?"

These kids… are completely full of themselves."Uh, well… that girl is with me."

"Huh?"

As soon as I came to her rescue, Tanaka quickly scurried to hide behind me.

"Hey! Wh-What's your relationship with this girl, mister!"

"Eh? She's my childh…"

No, wait. In this situation, wouldn't it be more effective to lie and say she's my 'girlfriend'?

"A-Actually, she's my girlfriend. So could you guys stop hitting on her?"

"R-Ryouta-kun!? I'm your, g-g-g-girlfriend?!" Tanaka's face turned bright red, and her teeth started chattering.

What's with that? Are you that opposed to being my girlfriend, even if it's a lie?"Wh-What? So she has a boyfriend."

"Btw, mister, you look like a high schooler, right? Must be a lolic*n."

Wh-…! These kids… so ignorant, yet they run their mouths.

"Listen up, elementary schoolers… for now, when you get home, search for 'gravure idol.' You guys are way too ignorant about the world."

"H-Huh? We're not gonna search for that! We're outta here, let's go!" The trio of precocious brats ran away along the poolside.

Not interested in Airi, mistaking Tanaka for an elementary schooler, calling me a lolic*n… what a bunch of rude kids. Is the world filling up with kids like this now?

"Thank you, Ryouta-kun." Tanaka said, hugging me from behind. The texture of her school swimsuit pressed against my back, and my lower half couldn't help but react.

T-Tanaka's… flat chest's is… damn it! Getting excited over Tanaka… as her best friend, that's wrong, isn't it?

"Hey, Tanaka! L-Let go!"

"Ah… s-sorry, Ryouta-kun! I just got carried away, ehehe." Tanaka gently let go of my back.

Why is she blushing?"First of all, why were you so flustered? They were just elementary schoolers."

"W-Well… as you may know, I've never been popular with boys in my entire life, so I was feeling a little good about it."

A second-year high schooler getting giddy over being popular with elementary schoolers… huh. Tanaka, that's just too…

"Tanaka-chan, are you okay!?" Airi, looking worried, was the first to run up to Tanaka.

"I'm sorry. I couldn't help you, Airi."

"That's not true! It's my fault for getting carried away by the elementary schoolers' attention!"

"""Huh?"""

The three beautiful girls all recoiled at once.

No, don't say that out loud, Tanaakaaa!! This is what's so unfortunate about you!

"Tanaka-chan… are you serious?"

"T-Tanaka, you…"

"Fufu, I wonder if Tanaka-san is a shotac*n?"

"I-I'm not a shota*n! I do own a few books about shota BL and shota harems, though!"

Sh-She's a total shotac*n! For now, officer, please come here immediately…

"U-Um, Tanaka-chan is safe now, so let's all go to the water slide."

"Y-Yeah… let's do that."

Thanks to Tanaka, the mood got kind of awkward as we moved to the water slide.

☆☆

"Look, look, Ryouta! This slide, you can go down the rapids in a two-person twin tube!"

"H-Heh."

I followed Airi's excited, bouncing chest with my eyes before looking at the water slide. This pool is famous for its three slides. There's the super-high-speed slide, the super-long water slide, and the river slide. Among them, the river slide, where you can experience going down rapids in a special tube, is the most popular, and there was already a long line.

"Due to its popularity, the line has become quite long and is obstructing traffic, so we are currently having staff confirm the number of people in groups of four or more, issuing tickets with the number of people, and having the representative of the group wait in line with the ticket! We appreciate your understanding and cooperation!" A staff member with a megaphone repeated, over and over.

"Umm, how many people are in your party?"

"Five."

I received a ticket with a '5' written on it from the staff.

"We apologize for the long wait. In the meantime, everyone except the representative is welcome to enjoy our other attractions." The staff member bowed and went to call out to the group behind us.

In that case, I guess I'm the only one who needs to wait in line.

"Everyone, I'll wait here, so the four of you can go try another slide. As long as you stick together, you probably won't get hit on."

"Ehh! No way!"

"Yeah. And knowing you, Ryouta, if you were alone, you'd just stare at other girls' swimsuits, right?"

"Eh! Is that true!? You're such a pervert, Ryouta!"

"Fufu… oh, Ryouta-kun. Trying to hit on other girls… that's very bad manners, don't you think?"

I said it out of consideration for everyone, but for some reason, I ended up getting attacked by the three beautiful girls. Why do they have to think that I'm trying to be alone just to stare at other girls' swimsuits? It's truly insulting.

…Or so I think, but to be honest, I was a little captivated by the two tanned, wild-looking gyaru in front of us in line, so I secretly wanted to be left alone for a bit.

"Alright, for now, me and Ryouta will wait in line, so the three of you…"

"Fufu, hey, Yuria?"

"Wh-What is it, Rui?"

"Somehow… I get the feeling that since this morning, you've been trying to get alone with Ryouta-kun… is it just my imagination?"

"Huh!? N-No, you're wrong! It's just that, I feel like it's my job to keep an eye on Ryouta, who's always looking at things pervertedly."

Wh-What kind of job is that! It sounds so bad, it's not even funny!"Then it's okay. I'll do that job too."

"Y-You too, Rui?"

"Yep. So, me and Ryouta-kun will wait here. Yuria, you can take Airi and Tanaka-san and go have fun. It wouldn't be fair to leave everything about Ryouta-kun to you." Like a mother chiding her patient older daughter, Rui spoke to Yuria with a benevolent smile.

When did I become a problem child who needs a chaperone in the first place? It's true that I've been getting carried away lately… but 'getting carried away' only amounted to diving into Airi's huge boobs in the countryside, having my navel fetish completely exposed by Rui, and telling Yuria to her face that I want to bury my face in her thighs.

"No, but it'd be bad to leave Ryouta with you, Rui."

"You're the one who's been taking care of him since the train, Yuria, so it's my turn. It's okay, I'll watch over Ryouta-kun."

"B-But…"

As Yuria and Rui were discussing what to do with me like parents fighting over custody…

"Then!"

Suddenly, a high-pitched voice cut through their argument.

A-Airi…?"I'll do it! I'll be Ryouta's chaperone!"

Airi shot her hand up and volunteered. Even when she raised her hand, her massive boobs still jiggled… wait, that's not the point right now! First of all, what the heck is 'my chaperone'!?

"A-Airi, you'll wait with Ryouta for us?"

"Yep! You guys can go have fun, it's okay. I'll call you when it's our turn."

We were all bewildered by Airi's sudden proposal. Airi, who's so selfish and loves to play, is going to wait in line with me…?

"Airi, you're not pushing yourself for our sake, are you? Besides, if you're alone with Ryouta-kun, I think he'll definitely sexually harass you."

"Hey, Rui. That sounds bad."

"Kuroki-san is right, Airi-tan! Nothing good will come of being alone with a total pervert like Ryouta-kun!"

"Tanaka, you…! You're saying whatever you want."

That bastard Tanaka. I thought she was being quiet, but she only opens her mouth to tease me.

"Jeez, everyone's worrying too much. Ryouta won't do anything weird to Airi, so it's okay! So come on, go kill some time." Airi pushed the three of them on their backs and wouldn't back down. Yuria, Tanaka, and Rui, while looking worried, ended up leaving.

First of all, I'm more worried about whether Tanaka, sandwiched between Rui and Yuria, can even talk properly…

"Jeez, everyone. They're so mistaken about Ryouta." Airi shrugged, her massive, plump boobs swaying from side to side.

"N-No, I don't think it's a misunderstanding… I think what everyone's saying is more or less correct."

"Ehh? Why?"

"Well… you know I'm a creepy, perverted otaku, right, Airi? So everyone's worried that I'll be staring at your chest."

"But between you and me, Ryouta, we have a promise that you can look at Airi's boobs as much as you want, right? In exchange, I get to call you Ryouta."

It's true that we made that promise in my room the other day, but…

"Besides, Ryouta. While you're saying that, you're looking a lot right now, at Airi's boobs."

"Th-That's!"

"Ehehe, is it because Airi's swimsuit is cute?" Airi pointed out that my gaze, as we stood in line talking, was completely fixed on her massive boobs, which were bursting out of her swimsuit.

Well, if there was a guy who wouldn't look at such massive boobs right next to him, he wouldn't be a guy!

"You're such a pervert, Ryouta."

"What! If you're gonna tease me so much, maybe I'll just stare at Yuria's thighs from now on."

"Eh? N-No, you can't! We made a promise when we went to grandma's house, right? You can look at Airi's, but not other girls'!"

I think we did, and I think we didn't. I mean, I've already been staring at Yuria's thighs, and of course Rui's navel, so I've broken that promise over and over again.

"Besides! Yuria probably doesn't want to be looked at with perverted eyes either!"

That Yuria told me ‘only look at mine,’ though… I-Is this what they call a 'caught in the middle' harem situation?

"So you get it? If you look at Yuria or Rui-chan like that, Airi will get mad."

"But it's okay to look at you like that, right, Airi?"

"Eh, well… yeah. Because it's you, Ryouta, I'll give you special permission." Airi's lips trembled as she blushed slightly, breaking out in a nervous sweat. Her massive breasts were also glistening with it.

Sooo hot."N-No more! Let's end this conversation! Grandma said you shouldn't talk about stuff like this in the daytime! Let's talk about something else!" Airi pleaded with me, shaking her head and chest left and right, perhaps to hide her embarrassment.

Well, the line is still long, and if we only talk about perverted things, the childish Airi's sense of shame will go wild.

"Okay, then… Airi, do you go to the pool often in the summer? You seemed ready to go today, the day after our trip, so I was wondering if you were used to it."

"Yeah, I go to the pool pretty often. The air conditioner at my house is old, so it's so hot in my room. And on hot days, my mom has taken me to the pool since I was in elementary school."

Her mom… come to think of it, Airi's mother was a gravure idol. After hearing that from BB in the countryside, I wanted to know her name, but I never found the right time to ask.

…I-I wanna ask."C-Come to think of it, your mom used to be a gravure idol, right, Airi?"

"Eh, how do you know that!?"

"I heard it from your grandma, Airi."

"Oh, really! Jeez, grandma, she complains about mom so much, but she's still bragging about her." Airi looked unusually happy.

"My mom, she became a gravure idol when she was in college. Now she's just a normal personworking at a supermarket, but when she was active, she was a popular one! She's skinny now, but back then, she was bigger than Airi in a lot of places!" Airi's eyes sparkled as she told me the story.

B-Bigger than Airi in a lot of places!? Does that mean she was a massive-breasted gravure idol with an estimated K-cup…? Alright, I'll use this momentum to ask for her mom's stage name, and when I get home, I'll search for it like crazy.

"S-So, what was your mom's name when she was a gravure idol?"

"Her name? Uhmm… hmm, wait a minute." Airi suddenly furrowed her brows and gave me a suspicious look.

"You're asking for her name… does that mean you want to see my mom's gravure photos, Ryouta? What are you planning to do, looking at them?"

"Guh…"

D-Damn it, Airi, of all times to be so sharp…

There's no way I can say in front of her that I was planning on doing weird things with her mom's photos.

"Ah, no, um… I was just thinking that if I saw your mom's gravure photos from back then, I'd know what you'll look like in the future, Airi."

"Airi's future?"

"W-Well, if your mom had such a beautiful body, I was wondering if you'd be like that in the future too."

"…I see."

The suspicious look from Airi disappeared, and I succeeded in smoothly deceiving her.

"But, in that case."

"Hm?"

"Until Airi grows up, if you stay by my side, Ryouta, wouldn't that be fine?" Airi muttered, looking up at me.

"…A-Always? Me?"

"Y-Yeah…"

"Well, if I could watch you forever, I would."

"R-Really!?"

I want to start an observation diary right now to see how far these massive boobs will grow.

"Then let's add a new promise! From now on, college and stuff, we'll be together!"

"Eh, ehh… that's a bit much."

"It's a promise! If you break it, you can't look at my boobs anymore!"

"Th-That's a matter of life and death, so… a-alright."

"Yay! Airi has to work hard so she can get into the same university as Ryouta!"

I've made another easy promise… but forever, huh. Well, it's Airi, so she's probably just saying it for fun. It's not that serious of a promise.

"Ehehe, I'm excited."

"Ah, yeah."

About the water slide… right?☆☆

After that, as I was talking with Airi, our turn for the water slide gradually got closer.

"…Oh, it's almost our turn. It's a popular slide, so we waited quite a while."

"You think? I was talking with Ryouta, so it felt like no time at all."

No time at all… After making that weird promise with Airi, she mostly just talked about her future plans for raising her beetle, and I was just nodding along.

"Alright, I guess it's about time to call Rui and the others."

"Roger!"

Then Airi casually looked down at her chest, slid her hand into the valley of her massive boobs, and pulled out her phone in a waterproof case… 

h-h-huhhhh!?!?

"Hey! Why did a phone just come out of there!"

"Eh? Because it's a pain to carry it in a bag."

"It's not about it being a pain!"

I've never seen anyone do something so Fujiko Mine-like in real life… or rather, you can't do that with normal boobs. Truly, a massive-boob pouch that only the chosen ones possess.

"A-Ahem. Um… about that, can I borrow that phone for a second?"

"Eh? I don't mind, but… oh, are you going to contact everyone for me?"

"Y-Yeah! That's right! I'll do it!"

"Jeez, just because we promised to always be together, you don't have to be so nice to Airi, you're being overprotective… but, thanks, Ryouta." Airi looked unusually shy as she handed me her phone without any resistance.

I don't really get it, but I'm glad she interpreted it so conveniently. I'm sorry, Airi. This isn't kindness. It's just that I couldn't suppress my virgin-like desire to simply touch the phone that was sandwiched between those massive boobs.

I reached out my hand, feeling a twinge of guilt, and took the phone from Airi… nnghh!!

W-Whoa! It's warm! Because it had been sandwiched between Airi's massive boobs for so long, the phone was warm, and furthermore, because it had been thoroughly steamed in the valley of her boobs, it was slightly damp with her chest sweat. Even after being subjected to the pressure of massive boobs and the sweaty steam from the valley of massive boobs, this phone is still working. It's still working.

"Hey, why do you have Airi's phone, Ryouta?"

As I was savoring the feeling of Airi's massive-boob phone, Yuria and the others suddenly returned.

O-Oh, craaaap!!"We thought it was about time, so we came back… Hey Airi. Why'd you give your phone to Ryouta?"

"Eh? Because Ryouta said he'd contact everyone for me."

"Huh?"

Yuria's sharp gaze turned to me.

"Uh, um, this was 100% out of goodwill."

"Goodwill?"

Even though it's blazing hot, I can't stop the cold sweat. I'm feel like a cornered culprit at the end of an Ace Attorney case.

"Oh my, oh my? That's strange, Ryouta-kun. If you were contacting us, it would obviously be faster to have Airi type, so that's not very logical, is it?" Rui approached me gradually with a terrifyingly sweet smile.

"And I believe… when we were in the changing room, Airi said something about carrying her phone by sandwiching it between her boobs…" Rui got close to my ear and whispered.

"Perfect, isn't it? My deduction."

"Y-Yes."

It was a small mercy that she didn't announce her perfect deduction in front of everyone.

"Ryouta-kun. Give the phone back to Airi immediately."

"Y-Yesss!"

Whispered in my ear by Rui, I immediately returned the phone to Airi.

"Fufu… Ryouta-kun, you're so kind, aren't you? Airi's fingers were wet with sweat, so you were going to contact us on your phone for her."

"Eh?"

A complete change from the atmosphere just now, Rui defended me, and I couldn't hide my surprise.

"Oh! So that's why Ryouta was going to type for me?"

"Heh, is that so, Ryouta?"

Airi and Yuria asked me.

No way, Rui… you saved me…"You're so kind, Ryouta-kun! I thought you were just getting excited by touching the phone that Airi-tan usually uses!"

"Nah, only Tanaka would think of something like that."

"Hey! That's mean, Ichinose-san!"

In the end, the situation was resolved by Tanaka being teased. I was saved, but… Rui, what on earth was she thinking? I glanced sideways at Rui, and she was also staring intently at me.

"Um, thanks, Rui. You saved me."

"You're welcome. But, Ryouta-kun? If you don't learn your lesson from this, you need to control your libido a little."

"I-I know… I'm reflecting on it."

"Fufu… well, when you just can't suppress your lewd feelings… you don't have to hold back with me, you know?"

"Th-That means…"

Rui winked and then joined the other three in their conversation. First Airi, then Yuria, and now Rui… telling me it's okay with them. How devoted can they be? I was so happy I almost cried. If Rui says I don't have to hold back, I guess I'll ask her to send more selfies.

"Ryouta-kun, Ryouta-kun! If you'd like, this water slide can be ridden by two people in a tube, so won't you ride it with me?"

"Eh, me and Tanaka on a slide…?"

"Wh-What is it? Are you trying to say it's not exciting to ride with someone with a scrawny body!?"

I didn't say that… your victim complex is off the charts, Tanaka.

"Heeh, so that's what you thought, Ryouta-kun. I wonder how many times you need to make me angry today before you're satisfied."

"H-Hey, Tanaka! Now Rui's pissed off because of you!"

"Hey! Don't blame me! It's true that Kuroki-san is… well, maybe not so different from me except for her abs and height! But there's no way the perfect beauty Kuroki-san would be shocked by something like that!"

Th-This girl! She's so naturally provocative!"Fufu… Tanaka-san, I always thought you were annoying for being the only one to come close to my test scores, but I never thought you were this annoying."


"Ah, ahaha… the sound of knuckles cracking… I-Ichinose-san! Help me!"

"Hey, why are you trying to drag me into this! You're the one who made Rui mad."

"Jeez! Everyone needs to get along!"

Because Tanaka, who had been activating her communication disorder until just now, joined the conversation, it became a huge mess.

Yep, this girl Tanaka… is nuts."For now, Rui, calm down. I-I think you're slender and beautiful, and I'm not making fun of you."

"H-Hmph… then, what about Tanaka-san?"

"Well, Tanaka is… a little kid."

"Haaahhh!?"

This time Tanaka got furious and started hitting my back, but since it was Tanaka, it didn't hurt at all.

"So, back to the topic. If this water slide can be ridden by two people, then even if we split into 2-2, there will still be one person left over, right? I'll slide alone, so why don't you four pair up?" Of course, my true desire is to ride behind Airi and see her boobs pop out, and I sincerely hope for a mishap where I get caught between Yuria's outstretched thighs if she rides in front, but I can't voice that desire here.

"Ehh! That's not fair to you, Ryouta!"

"Wh-What do you mean, not fair?"

"I agree with Airi. I don't mind going with you, Ryouta, and Rui feels the same way, right?"

"Yep, I'm fine with it." As she said that, Rui sent me a sharp, burning gaze.

Wh-What's with that look… I'm a guy, you know."So, why don't we decide by rock-paper-scissors? We can keep going until we get 2-2-1."

"Yeah. I'm fine with that."

"Airi agrees too!"

"H-Hey, wait."

Are you serious… then, there's a chance that I… could be with one of the beauty trio plus Tanaka…? When you go down the rapids slide in a pair, you ride in a special tube front and back, so body contact is inevitable. And that fate is now entrusted to rock-paper-scissors.

Personally… well, it would be amazing if I could slide with the big-and-plump duo of Airi and Yuria. But even if it's Rui, if I ride in front of her, I can touch the bare legs of top athlete Kuroki Rui. Kuroki Rui's beautiful legs, usually hidden by black tights… there's no doubt they have a different kind of appeal than Yuria's thick thighs.

To sum up what I'm trying to say… except for you, Tanaka. You're no good. There's nothing more painful than a slide with two introverts.

"""""Rock-paper-scissors shoot!"""""

I threw out paper randomly, but Rui and Airi also threw paper, so we had to do it over.

"""""Rock-paper-scissors!"""""

This time I threw scissors, but Rui and Tanaka also threw scissors, so we had to do it over again.

"""""Rock-paper-scissors!"""""

Next, I threw scissors again, and Rui and Yuria threw scissors… wait a minute.

S-Somehow… the rate at which I'm matching with Rui is really high… it's just my imagination, right? I glanced at Rui's face, and she was staring at my hand with her eyes wide open, as if her eyeballs were about to pop out.

H-…Hey, hey, Rui… you… Everyone else is focused on the game and hasn't noticed, but Rui has a seriously crazy look in her eyes…

Damn it, Rui… she plans to stop me from having a fun, plump-plump slide with the big-and-plump duo and harass me.Alright, if that's the case… I'll throw a feint next time.

"""""Rock-paper-scissors!"""""

This time, I pretended to throw scissors until the last second, and then at the very last moment, I opened my hand wide.

And then…

"Huh, maybe this… decided it…?"

Airi and Rui had scissors, and Tanaka had rock.

And… me and Yuria had paper.

"Oh! Airi is with Rui-chan!"

"Yes… that's right, Airi." Rui smiled back at Airi, but for a split second, she shot a sharp glance my way.

Y-Yikes… that's scary. Apparently, Rui knew I had feinted and thrown paper.

"Hah… I'm all alone anyway. From now on, please call me Tanaka Hitori. By the way, I can't play the guitar."

"What have you been mumbling about, Tanaka? Don't get depressed over something like this."

"Ah… me, with Ryouta…"

"Hm?"

As I was comforting Tanaka, I noticed Yuria staring at her right hand, which had thrown paper, blinking.

"Y-Yuria?"

"Ugh, th-this is the worst! Just so you know, Ryouta, stay away from me when we're riding." Yuria pouted and spoke in a tsundere-like tone.

Ah, I see. She's acting all tsundere-like because everyone's around, right? Well? Even if Yuria genuinely disliked it, I wouldn't stay away.

And so, the pairs for the slide were decided, and our turn came. We rode down in a figure-eight-shaped two-person tube. I immediately sat in the front to secure my position, and Yuria sat behind me.

"Hey, Ryouta… you're leaning back too far…"

"You think? This feels about right to me~"

"I can see right through you. But, in that case." Yuria extended her beautiful bare legs from both sides of me. Then her thick thighs pressed against my sides… what is this, s-so soft…

"If you're going to be like that, Ryouta… I'll give you a special service today." Yuria leaned her body toward me and whispered in my ear from behind. In an instant, all the blood in my body slid down to my lower half and tried to gather in one point.

What the heck is that! S-So erotic…I received Yuria's service (in a suggestive way), and my blood had already completed its slide to my lower half, but the main event, the water slide, was still to come.

"Btw, it's a good thing you're sitting in front, Ryouta. If you were behind me, you would have definitely been staring at my body."

"…Well, I won't deny that."

"See? Off-the-shoulder swimsuits really show everything when they slip, so I was seriously worried. Too bad for you, Ryouta." As she said that, Yuria used her prized thick thighs to gently squeeze my back. The soft, fleshy pressure, comparable to Airi's boobs, was irresistible.

Damn it… if the human body were structured to have a face on its back, I could have been squeezed by Yuria's thighs all I wanted (makes no sense)."Next group, let's go."

When the pool employee removed the board that was holding our tube, we started moving at once with the flow of the water. Finally, the event that should have been the most unlikely for an introvert, "a water slide with a girl," had begun. The beginning was a gentle slope, but when I looked further ahead, I could see a proper drop. It's surprisingly steep, and I'm sure we'll accelerate from there.

"Whoa! It's getting faster, Ryouta."

"Y-Yeah… it is."

"Hm? What's wrong? Are you scared?"

"I-I'm not scared!"

Yuria shouted at me from behind, so I got annoyed and turned around to deny it. Damn it, that Yuria, teasing me… Not only was Yuria teasing me with her words, but she's also been putting her long, thick bare legs out from under my arms and pressing her thighs against me.

Ah… the feeling of these big, plump, thick thighs is making me irritated all the way down to my crotch.As I desperately tried to suppress the blood sliding to my crotch, the slide suddenly entered the most intense rapids!! The moment we entered the rapid area, my hair stood on end, and the splashing water hitting me was slightly painful.

"…! H-Hey, Y-Yuria! This is super fast!! Y-Yuria! Are you okay!?"

"Whee! This is so exhilarating!"

"Wh-What's so exhilarating about this! I-It's too fast! Y-Yuria!"

"Jeez, Ryouta. Calling my name even at a time like this… you really can't do anything without me."

Yuria seemed to be muttering something to herself with a relaxed expression, but the speed in the rapidswas so intense that I thought I'd bite my tongue, and I didn't even have the leeway to open my mouth.

"Well? It's my job to take care of you, Ryouta, so it's fine, but? If I'm that important to you, then soon…"

"Hey! How do you have the leeway to mutter to yourself at this speed!"

Wait! This is no time for calm retorts! The part where we plunge into the pool at the end of the water slide is right in front of us…!

Vwoooosh! Th-This slide is fast! I'm being washed away! Vwoooosh! Help me, Yuria! Bwah! Rui! Airi! Tanaakaaaa!!As I was screaming my head off in my mind, we finally plunged into the pool at the end of the water slide, and a huge splash went up.

"…Wh-What a slide."

It was so fast, I made a weird noise. I was so focused on Yuria's thighs that I had completely forgotten, but with these kinds of slides, the person in front gets hit with the wind head-on, so it was actually scary. After the slide was over, we just drifted along the gentle current to the tube collection area.

"Hah… was everything okay? Yuria… huh?"

Hm? What's this feeling? Something is touching my back…? Until just now, Yuria's legs were under my arms… but now they've been replaced by beautiful arms. This posture, could it be… Yuria is hugging me…?

When I tried to turn around, Yuria stopped me with a single word, "Don't."

"S-Sorry, Ryouta, don't look over here for a sec."

"Eh? A-Alright, but… why are you hugging me?"

"…"

"C-Could it be that 'suspension bridge effect' thing!? Yuria, did you fall for me!?"

"No, whether I like you or not is another story! R-Right now, that's not it!!"

"Huh?"

"My! My swimsuit! The top came off from the force of plunging into the pool, and it floated away behind me!"

Huh? Huh?

Her swimsuit top came off… you say!?

…Which means, the two voluminous things I'm feeling on my back are… Yuria's!"Whoaaaaaa!! Yuria's bare boobs are on my back!"

"Shut up, idiot!" Yuria headbutted my back while still hugging me.

"I-I can't cover them with my arms, they might pop out, and I think my swimsuit top will float over here soon, so… lend me your back."

"Eh, ah, yeah."

Yuria's boooobs… are on my, back!? I rejoiced that such a rom-com manga's lucky perverted development was happening in real life. And since they're bare boobs… does that mean, the things I'm feeling on my back are… Yuria's, you know!?

"Hey, Ryouta… don't, rub against me."

"O-Oh…"

T-To think such a lucky perverted… no, a lucky super perverted thing would happen. I wish her swimsuit top would never float back…

"Ah, there it is."

The swimsuit top came back normally before we reached the tube collection area, so Yuria quickly retrieved it and put it on. I didn't get to see them pop out from the front, but I experienced an even greater excitement…

After that, in a slightly awkward atmosphere, we arrived at the tube collection area, got off, and decided to wait for the other three to slide down.

"W-Well, that slide was fun!" I said,trying to change the awkward atmosphere, but in my head, I could only think about Yuria's boobs. To become conscious of something other than Yuria's thighs… a bare touch is a fearsome thing.

"More importantly, Ryouta, my boobs… when you felt them on your back, you weren't disappointed, were you?"

"D-Disappointed? No, I was super excited! I mean, they're not as big as Airi's, but I realized they're definitely there."

When I gave my honest opinion, Yuria laughed softly.

"Well? But with our relationship, Ryouta, a secret like that isn't so bad, right? A slightly naughty secret."

Sharing a naughty secret… what a great relationship.

And so, after the super perverted water slide with Yuria was over, we continued to have a free and fun time, going down other slides and letting ourselves be carried by the lazy river.

…But, having experienced Yuria's bare breasts, I spent the rest of the time thinking about nothing but that and getting excited.

Yuria's bare boobs… that was too amazing. The feeling of a classmate's breasts, and a top gyaru, popular girl Ichinose Yuria's at that. You can't experience something like this just by living a normal life. On top of that, I'm a virgin. The feeling of bare breasts for the first time was too raw, too stimulating.

"Hey, Ryouta~! Let's go to the diving board next!"

"…"

"Huh? Ryouta?"

"…Ah, wh-what is it, Airi?"

"Jeez, you're spacing out again. Haven't you been acting weird since the slide, Ryouta? Did something happen?" Airi's spot-on observation made my body flinch.

Oh, craaaap… she's noticed I'm acting weird. Yuria, for her part, probably guessing my situation, averted her gaze awkwardly.

"…Fufu. Ryouta-kun must be tired."

"Eh? Is that so, Ryouta?" Airi asked me, Prompted by Rui.

"Ah, no, that's not… it."

Tired… is not quite it. I just can't get Yuria's bare boobs out of my head (back)…"Then we're gonna ride slides like crazy after this! Okay!"

"Ah, yeah."

After that, I was dragged around by Airi and the others, going around the pool with enough momentum to conquer everything…

That evening, everything came to an end. Yuria and Airi had been having a blast until the very end, so they fell asleep on the train ride home, and Tanaka, being an indoor type, was also completely exhausted and asleep.

"Fufu… everyone's asleep."

"Ah, yeah."

Which automatically created a space for just me and Rui.

"Hey, Ryouta-kun. Since we're alone, there's something I want to tell you."

"Something you want to tell me?"

"Yep. It's about the punishment we talked about the other day."

As if to ruin the mood, the topic of punishment came up.

P-Punishment…I swallowed hard and turned my gaze to Rui. The anticipation and tension from hearing that made me feel like the shaking train had stopped for a moment. In the first place, the punishment was Rui's penalty for me trying to cleverly hide the fact that I had stayed over with Airi.

Wh-What kind of punishment awaits me…?"Fufu… hey, Ryouta-kun, are you the type of person who's okay with sitting for about half a day?"

H-Half a day, sitting!? N-No way, is Rui's punishment some kind of torture!? In that case, the masochist inside me is overjoyed.

"I'm… fine (even with a half-day seiza-and-being-ignored play)."

"Really? Then~, I guess I'll go with that for the punishment."

'That'? What's 'that'? Damn it, Rui, saying it in a way that makes me curious on purpose.

"Hmm. I think I'll make the details of the punishment a surprise for the day of."

Once again, Rui is teasing me. Th-This teasing play, I don't hate it… in fact, I like it…"Then, Ryouta-kun? Next Wednesday, come to school at 7 AM in your uniform, okay? It's a promise."

"U-Uniform!? And at school!?"

"Yep. It has to be that way."

School, in uniform, for half a day… that's insane. No way, is Rui planning to use an empty classroom during summer break to engage in a super perverted masochistic play with me!? Oh my god… I want to do it so badly.

"Alright! F-Fine, I'll go." I said, as if I were going reluctantly, but I was looking forward to it.

"Fufu… good." Rui had a pure, happy expression on her face, so much so that it seemed like she had an ulterior motive.

But with this… I'm going to graduate from being a virgin…☆☆

—Four days later, on the Wednesday of the following week.

As promised with Rui, I changed into my uniform in the morning and arrived at the high school, the venue for our masochistic play. Of course, I brought the rubber that Yuria almost confiscated. Here, today, I'm supposed to be enjoying a masochistic play in the name of "punishment" from Rui.

When I passed through the school gates… hm? It's summer break… but there are a lot of people here. For some reason, students from various grades were wandering around theschool in their uniforms today.

"Ah! Ryouta~! Morning!"

I heard Airi's voice from behind and turned around to see not just Airi, but Yuria and Tanaka as well.

E-Everyone's in uniform…? N-No way, this masochistic play in the name of punishment… is it a group thing!?!?"You came, Ryouta. Rui will be happy."

"O-Of course I'd come!"

"Wow, you're so passionate. I didn't think you'd be so into this, Ryouta-kun. I thought you weren't interested in this kind of event."

"What!? Are you an idiot, Tanaka! There's no way I wouldn't be interested! A super perverted masochistic play with a classmate is a once-in-a-lifetime opportunity!"

"""…Huh?"""

The three of them—Tanaka, Airi, and Yuria—looked at me with expressions as if they had just bitten into something bitter.

"Hey, Tanaka-chan? Airi can kinda get the gist of it, but can you explain in detail what a 'super perverted masochistic play' is?"

"Y-Yes. Um… a super perverted masochistic play is a type of s●xual act where one derives pleasure from receiving physical damage, such as being hit with a whip by a beautiful woman, being tied up, or being stepped on with heels while being verbally abused. It is believed to have developed from the twisted pleasure that unpopular men derive from being scorned by beautiful women they usually only admire from afar, evolving into a s●xual play."

"Heeh."

Tanaka's explanation was so high-powered that it probably made enemies of every man in the world… but more importantly, wait a minute!

"H-Hey! Isn't today the day for a super perverted masochistic play!?"

"No, what are you talking about, Ryouta…? Did looking at our swimsuits too much the other day break your libido switch?"

"It's not broken! If anything, my libido is updated daily! That's not it! Didn't you guys… come to watch me and Rui's masochistic play?"

"Ryouta… a-are you okay in the head? Should we go to the doctor's next to Airi's house right now?"

"Why would it come to that!"

Th-This is bad… Tanaka aside, the other two are genuinely repulsed. I realized from everyone's reaction that this is probably… Rui's trap. She probably said something suggestive on the train, but today is a completely different event. That's the pattern! Even though I know Rui's (slightly mischievous) true nature, to fall for such a basic perverted trick… I'm still immature.

"Hah… it's okay, everyone. Knowing Ryouta, I'm sure he just misunderstood and thought Rui invited him here today to do something lewd."

Damn… as expected of my number one supporter, Yuria, she understands everything."Ohh, so that's what it is. Jeez, Ryouta, you never change. Even though I keep telling you not to look at Rui-chan and the others with perverted eyes."

"Really, Ryouta-kun, you're just a silly boy who lives for his libido."

"Seriously, Ryouta, I don't think it's gross because it's you, but it's not okay to think about doing that kind of thing with Rui. Be more careful from now on."

"Y-Yes… I'm reflecting on it."

On top of being naturally bashed by everyone, I don't like how they've all come to the conclusion that I'm some kind of libido incarnate.

"Btw, if it's not a super perverted masochistic play, then why are we all gathered here today?"

"Seriously, Rui didn't tell you, did she? Just so you know, we're all going to cheer for Rui at the Inter-High today. Last year, anyone who wanted to go gathered at the school and took a bus."

"…Huh? I-Inter-High!?"

That's right, Rui's punishment was… of all things, cheering for her at the Inter-High.


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