Somehow I Ended up Dating the Perfect Female Classmate, but My Sister Found Out and They're Turning Into Yanderes - Chapter 121-122

Chapter 121: Three-Legged Race Prep

“Oh, next up is the three-legged race, huh.”

The first event of the afternoon was the three-legged race.

I was paired with Kirino, of course.

During after-school practice, my leg kept rubbing against Kirino’s beautiful leg, and I could feel every detail of it clearly.

Just thinking about that leg wrapping around my dick made me wanna quit right now and jerk off alone.

If I actually did that, even Kirino would probably not hesitate to give me DV training in front of everyone.

“Kiyoto, sorry to keep you waiting.”

Kirino came back holding the string we’d use to tie our legs together.

“Sorry it took so long. We don’t have time to warm up anymore, do we?”

Yeah, all the groups from each class were already gathering at the starting area, so there was no time left for warm-ups.

…I really wanted to do that kind of warm-up again… nah, forget it. No telling who might be secretly filming.

“Also, I asked earlier but… was my bento enough?”

The bento Kirino gave me today had cute little animal faces drawn on the white rice, tamagoyaki, and dango—super girly stuff.

I didn’t expect Kirino to make something this simply cute, but I love that unstable side of her too.

“Yeah, it was plenty. Thanks to that bento, all the tiredness from the morning went away.”

“Really… yeah, that’s right! The amount I made is just perfect for you, Kiyoto, and no bento made by anyone else would ever fill you up.”

Gulp!

That wording could totally be read as “I know” or “I don’t know.” Both ways work.

Well, even if she did find out, I’m totally fine with whatever comes after.

“Alright, let’s head over there too.”

Kirino led the way and we walked toward the gathering spot.

Looking quickly at the students crowding the area, I didn’t see Rinka anywhere.

Makes sense, I guess.

Three-legged race doesn’t really suit her.

If Rinka were doing it, the only person who wouldn’t look weird as her partner would probably be… Satsuna.

If me and Satsuna were paired, it wouldn’t be “tying with a string,” it’d be “walking on a leash.”

While I was imagining all that—

“Kiyoto, what are you thinking about right now?”

“Whoa!?”

Before I knew it, Kirino was right in front of my face.

“…That surprised reaction actually hurts a bit… but more importantly, who were you thinking about?”

See, everyone? This is the emotionally unstable type!

Just a moment ago she was giving me a bento with cute animal drawings, but the second I think about another girl she starts interrogating me hard.

Most DV girlfriends tend to be the emotionally unstable type, right?

Some hit you without meaning to, others do it on purpose.

I’m fine with either, but if we’re talking pure masochist taste, the intentional one might be better.

“Uh, um… I was just wondering what kind of people your parents are.”

“My parents? …Geez, Kiyoto, you move so fast.”

Ah//

Kirino reached out and touched my cheek.

Whoa, Kirino’s already charging me up nicely before we even start.

“Let’s save talk like that until after the graduation ceremony, okay?”

Huh?

Greeting her parents after the graduation ceremony…?

Oh, I get it.

That means greeting them once I officially become Kirino’s “thing” or her “girl.”

About five minutes after we reached the gathering spot, the overall explanation started.

Basically, they went over the detailed rules for the three-legged race.

I only learned today that it’s done in relay format.

Kirino, who already knew the rules beforehand, went…

“……”

Ah, half her expression just disappeared. So she only found out today too.

What are we gonna do? The other classes already seem to have decided their running order…

“Um, Kirino? Shouldn’t we decide our running order now too?”

“…Yeah, you’re right. Let’s make me and Kiyoto the anchor pair. Everyone else can decide the rest however you want.”

So casual!?

She’s pulling the emotionally unstable move again.

Is she already picturing exactly how she’s gonna train the dog she plans to own, and this is just practice…?

“Oh, and while you can decide freely… make sure you don’t fall behind the other classes. If we get a pathetic result even in the three-legged race… I might not be able to stay nice to the whole class anymore.”

By normal standards, I’d say she’s already not very nice…

This is that pattern, huh.

The kind senior who’s always taken care of everything keeps confessing to the junior she likes, but every time it gets completely rejected. Little by little something inside her changes until she starts threatening “what if you say no?”

Ah, but with Kirino, there’s already suspicion that her true nature is super black-hearted, so it’s probably more like the hidden parts are just peeling off one by one.

—

Chapter 122: Cheating Pair in the Three-Legged Race

Right now, first- and second-years are doing the three-legged race right in front of us.

Most of the pairs are same-gender too.

Man, they’ve got the will to participate but zero will to actually fuck. These guys are hopeless.

Or maybe they’re just riding the recent same-sex love trend?

If I’d been born a year later… would I have been seriously jerking off to BL doujinshi…

…Nah, zero demand for that.

“Kiyoto, aren’t you staring a little too much at that girls’ pair running up ahead?”

Whoops, close one.

I was completely under Kirino’s surveillance from my position.

“N-no, I was just observing the motivated first- and second-years to learn from them, y’know.”

“The ones you were watching are from first-year Class A, right?”

Huh? Y-yeah, the big “A Class” letters on the back of their jerseys are hard to miss.

“Oh, are you thinking ‘fall already’ like I am?”

That’s straight-up elementary school behavior.

“I really hope they trip hard, get badly hurt, and get carried straight to the hospital~ And while we’re at it, I hope Rinka’s arm breaks so she can never do kendo again~”

Where the hell did Rinka come from!?

And how would any development from here even lead to Rinka’s arm breaking?

Plus the total lack of morals to casually say something like that right in front of her actual brother.

Cheers to that! Kirino.

My body has completely surrendered to you!!

“Ah, it’s almost our turn.”

The last second-year group finished, and finally it was the third-years’ turn.

Looking at how dead the atmosphere got the second third-years started, the only ones thinking “finally” are us.

And it’s not the excited kind of “finally”—it’s the terrified “finally” that comes from knowing we absolutely can’t lose, or we’ll get exiled to some island.

Because it’s relay style, the pairs were all over the place.

But since we’re the anchor, we’re standing in the same spot as during the 100-meter dash earlier.

Now that I think about it, isn’t 100 meters kinda long for a three-legged race?

I don’t think normal people’s stamina would last.

In my case the pair is straight-up cheating so it’s fine… but what about those fat otaku guys from who-knows-which-class who, when they try to study at night, end up getting overwhelmed by hunger and horniness, then stuff their faces with chips while reading adult doujin and jerking off nonstop? Can they actually run the full 100 meters?

While I was rethinking how tough it is to run 100 meters three-legged, the race started.

Oh, our class’s first pair had a perfect start.

A too-good start in three-legged usually means you’re about to trip, but this time it didn’t happen.

They were doing great through the middle, but then one of them slowed down, so the other had no choice but to slow down too.

This is exactly when same-gender pairs suck at encouraging each other.

If I hit my limit and Kouta was cheering me on right beside me, it wouldn’t recover my stamina at all—in fact it’d probably make me tire out faster.

Ah, we just got passed by another class.

I nervously glanced sideways.

“…Hm? What’s wrong?”

Her expression was a bit stiffer than before, but Kirino still didn’t seem that upset.

We stayed in second place as the sash got passed to the second pair.

This time it was a girls’ pair.

The sight of them running was pretty hot, but right after getting the sash their speed dropped noticeably.

One of them almost fell, but her partner stopped running and held her up.

Because of that time loss we got passed by another pair, but they kept encouraging each other and somehow continued.

See that, Kirino?

It’s not just about winning.

This is how new friendships are born at a sports festival—

“……”

Ah, that’s the face of someone who only cares about winning.

But now that I think about it, for first- and second-years it might still mean something, but at this point in third year, making new friends doesn’t really matter anymore.

The sash kept getting passed to the next pair.

Our class started strong, but every time the pair changed we got passed more and more.

“「……」”

When the sash finally reached us anchors, we were dead last, as expected.

The girl from the previous pair handed the sash to Kirino while looking like she was about to cry. Kirino grabbed my shoulder and pulled me close, just like during the jump rope.

“Oh//”

“Sorry, Kiyoto. I really wanted to run while guiding you like we did in practice…”

Huh? Was that how we ran in practice?

“But this time I’m gonna make you match my speed whether you like it or not.”

Without waiting for my answer, Kirino took off.

Even though she was pulling me along, I figured our speed would drop a little, but—

“――――――――”

Isn’t this way too fast?

There was no time to even catch my breath—the scenery kept changing nonstop.

I wanted to watch Kirino’s form and how she was running, but she didn’t even give me a second to do that.

I was moving my legs too, but they basically weren’t touching the ground anymore.

Kirino’s running style was like cutting through the wind.

She was going this fast, yet I couldn’t hear her breathing hard at all. It almost felt like she was running in complete silence. (Actually, she was completely silent.)

The whole field erupted in cheers at Kirino’s superhuman speed.

And just like that, without me ever really running on my own feet, Kirino broke through the finish tape.

“We did it, Kiyoto! First place~!”

Kirino pressed my face right into her chest.

Yep, still no sweat at all.

Come to think of it, while we were running I did feel her chest bouncing a little//

When I looked back, the second-place pair had only just reached the finish line.

Well, it is a three-legged race, so that big of a gap makes sense.

But to go from dead last, pass every single pair ahead, and win by that much… at this point even if she locks me up I’ll never be able to escape//