Somehow I Ended up Dating the Perfect Female Classmate, but My Sister Found Out and They're Turning Into Yanderes - Chapter 117-118

Chapter 117: Clear Traitor in the Ball Toss

Every class was gathered in front of their own ball-toss basket.

Now that I think about it, there wasn’t even an entrance march or anything, so we totally didn’t need to line up like that, right?

And whether it was fate or someone set it up on purpose, I don’t know, but right next to us was first-year Class A.

That meant we’d know right away which class got more balls in.

Class A acted like we weren’t even worth looking at… except they couldn’t really ignore us.

That’s because Kirino was giving off this crazy pressure that made my big dick tremble a little side to side.

And the one taking that pressure head-on was Rinka.

But Rinka was the only one who didn’t look at Kirino at all. Instead, she turned straight toward me.

“How are you feeling, Kiyoto?”

“Uh, yeah, I’m doing okay I guess. You were seriously amazing in that cavalry battle earlier, Rinka.”

“You were fast in the 100-meter dash too. It’s really great to see someone who isn’t even in a club grow that much.”

Um, Rinka, maybe we can keep the chat short? The ball toss is about to start.

“Here, let me give you a little reward.”

With that, Rinka moved in like she was gonna hug me.

Whoa, hey, can we maybe not do that right here? Everyone’s watching.

“What’s wrong? Why are you getting so embarrassed? Are you worried about the eyes around us? If so, there’s no need at all. The fact that you and I are siblings is common knowledge to everyone.

Or is it because of our height difference—your face would press right into my chest, so you’re feeling shy?”

Nah, that’s not it.

Besides, you don’t even have enough chest to get excited about.

“Look, the ball toss is gonna start any second now. I’ll just…”

“…I see. Then I’ll save the reward for when we get home.”

There’s a good reason I turned down Rinka’s hug so hard.

Even if her chest isn’t much, I’d still feel the shape and warmth of her body directly. And even though she doesn’t smell right now, after going all-out in that sweaty cavalry battle under this heat, it’d be weird if she wasn’t at least a little sweaty. I’d end up smelling that too.

But more than any of that, for a while now I’ve had this unbearable feeling like my crotch is getting attacked from behind.

I once read in some novel about a prisoner they told “We’re gonna drain your blood now,” then attached some tool to his body. They didn’t actually take any blood—they just dripped water so it made that sound. But the prisoner was convinced his blood was really being drained and died from the shock.

In my case right now, it’s even worse. There’s not even any sound, but I still feel like my crotch is being tortured.

I slowly turned around, scared to look…

“……”

Just as I thought, Kirino was staring at me with a completely blank face—no, with eyes way darker and deeper than blank.

…My brain must’ve picked up that stare and turned the sheer terror into the feeling that my weak spot was under attack.

“K-Kirino? The ball toss is about to start…”

Everyone around us was completely crushed by the vibe Kirino was giving off, so nobody could say a word. I had to be the one to speak up.

“…Right. Okay everyone, split into your groups. The person passing the balls, sit on the basket side. The thrower, stand a little away from the basket.”

Kirino’s voice had completely switched to pure business mode.

Did I… just become the traitor?

“Oh yeah, I forgot to mention earlier—if we lose to the first-year Class A next to us in number of balls… how about we all meet up during lunch break?”

The second Kirino said that, everyone shuddered and turned to glare at me with accusing eyes.

This one’s totally on me. No excuses. So please go ahead and post my email address and phone number on some escort site. I’ll happily become prey for any woman overflowing with lust.

“Alright, since every class is ready, we’ll now begin the ball toss. On your marks…”

With another “pop” and that suspiciously erotic sound effect, it started.

At the same time, I threw all the balls I was holding straight to Kirino.

She caught every single one without missing, and in less than half a second she’d already thrown it into the basket.

She kept repeating that over and over.

Just by looking at the balls piling up in our basket, I could tell everyone besides me and Kirino was throwing like their lives depended on it.

Having Kirino as my partner meant I had to keep feeding her balls non-stop, and it actually took a ton of stamina.

I didn’t even have time to check how many the Class A next to us were getting.

…Does it take this much energy even during our nighttime activities with Kirino…?//

The time limit for the ball toss was forty seconds. Right when I’d used about as much stamina as if I’d done five straight rounds of penis exercises, the ending “pop” finally rang out.

After that, each class’s homeroom teacher started counting the balls in their own basket out loud, one by one.

Come to think of it, this might be the first time I’ve actually seen our homeroom teacher’s face up close.

The counting had only been going for a few dozen seconds when all the third-year classes except ours were already wiped out. Then, little by little, the first- and second-year classes started dropping too.

In the end, only two classes were left: first-year Class A and third-year Class E.

Everyone around us couldn’t hide their shock that a third-year class had made it this far.

“83…”

So the total for the basket next to us, Class A, was apparently 83.

And for our class…

“84!”

We beat first-year Class A by just one point.

Honestly, the fact that a third-year class with zero motivation won left the whole field in a kinda awkward atmosphere. Of course nobody cheered or anything.

They all just looked relieved that Kirino’s “lunch meet-up” had been canceled.

“Yay, Kiyoto!” “Well done, Kiyoto…”

Kirino tried to hug me, but Rinka pushed her aside, pulled me in, pressed our bodies together a bit, and forcibly shook my hand.

“””””””””””””……””””””””””””

The whole class broke out in cold sweat at that move.

As for Kirino…

“……”

Yeah, I’m definitely the traitor here. As punishment, you can film me wearing a collar, walking on all fours, and upload the video to some overseas porn site. Go ahead.

—

Chapter 118: Basically Just Kirino Doing All the Jump Rope

“Next up is the big jump rope, huh…”

The ball toss was over, the second-years’ creepy-as-hell dance finished, and now the all-grades jump rope event was finally starting.

We’d practiced jump rope a bunch of times after school, but we only managed to get into double digits once or twice.

If everyone’s not some crazy clutch performer when it counts, we’re definitely gonna lose, right?

We marched in like always and made our way over to our class’s jump rope spot.

“Okay, this time line up by height, everyone~”

By the way, I’ve been thinking this the whole time, but isn’t the front row way harder?

‘Cause you naturally have to jump higher than the middle.

Still, there’s no point complaining to Kirino now—the outcome’s obvious. So I just gotta focus on lifting my legs as high as possible without overdoing it early, or my stamina won’t last.

“Alright everyone~ Like we said so many times in practice, the most important thing is for all of us to keep our steps together.”

Yeah, that’s true, but since I’m in the front row, there aren’t many people for me to match steps with.

“Also, every single jump, let’s all call out the count together. That way your body will naturally pick up the rhythm.”

Makes sense. In practice, when we actually shouted the numbers out loud, we managed to go past ten.

“We will now begin the group jump rope. Each class, please take your positions.”

The other classes were lining up one after another too.

Looking around, pretty much every class had lined up by height just like us.

“Ready…”

At the sound of the starting gun, classes started jumping one by one.

“Alright, here we go~ One, two, three—”

“””””””””””””GO!!!!!””””””””””””

Oh, this time the rope came right on “GO!”

In practice we used to trip on that “GO!” all the time (actually, almost everyone messed up on the first try).

“””””””””””””２！３！４！””””””””””””

We kept jumping and calling out the numbers one after another.

At first glance it sounded like the whole class was shouting the count from their guts, but really it was just Kirino.

Her voice was so loud it just made it sound like everyone was counting together.

Even so, Kirino’s loud voice was big, but it didn’t feel annoying or stressful to listen to at all.

If anything, it pumped some energy back into my weak spot.

Wait, no, that’s probably bad in a different way…

“””””””””””””18！19！””

On the 19th jump, someone tripped and it ended.

As for the other classes…

“””””””””””””……””””””””””””

Everyone was probably staring in shock right now, realizing most classes were still going strong.

We’d only stopped because someone messed up by accident, but everyone’s breathing was already getting heavy. Even if we hadn’t tripped there, it was clear we’d hit our limit after a few more jumps anyway.

So, what about the star everyone was worried about—Kirino?

“…Well, don’t worry about it. Stuff like that happens to anyone.”

She didn’t seem that mad.

Not mad, but that “it happens to anyone” line usually comes out when someone’s desperately trying to hold back their irritation.

“I’m not angry or anything… but could the person who tripped just now please raise your hand?”

Ah, so she couldn’t completely hide the irritation after all.

Hey, why are you guys looking at me again?

You’re not seriously gonna make me raise my hand again, right?

…Well, I get it. If it’s me, Kirino probably won’t get too mad, and even if she does punish me, it’d just turn into a reward for me.

So… I guess I have no choice but to raise my hand again—

“Uh, yes…”

But before I could even lift my arm, a girl from the front row raised her hand with tears in her eyes.

“Hm~? You raised your hand, so does that mean you were the one who tripped?”

“Y-yes… I messed up…”

Her voice was shaking a little too.

Even Kirino probably wouldn’t give any special punishment to a girl who was already in that state.

“Aw, you don’t have to cry like that. I said I’m not mad, didn’t I?”

Kirino gently stroked the girl’s head to calm her down.

…Her whole approach is straight-up like an abusive boyfriend/girlfriend now.

“Alright, everyone, don’t blame her too much, okay? Like I said before, everyone has their own condition and stuff.”

It kinda looked like the only one who was about to blame her was Kirino, though.

“Come on, let’s line up properly again. A lot of classes have probably already tripped, so the second round should start soon.”

Oh yeah. It’s not like it ends after just one try.

“Okay, you… next time, don’t… trip, alright?”

“Hic!”

The girl’s body shivered for a second.

I couldn’t see Kirino’s face from behind, so I don’t know what kind of expression she had when she gave that warning, but I’m pretty sure everyone just got their bodies forcibly rewired by fear to keep their legs moving no matter what.