episode_0621

Ah. Right. I figured this would happen.

No wonder Jiyoon’s room was empty when I opened it.

In this small house, there’s nowhere else to go, so they’re probably in the bathroom with Woojin.

She always liked having secret sex with Woojin like that.

What strange tastes. Really.

What would have happened if Dabin hadn’t woken me up?

What would have happened if she hadn’t told me, “Don’t you need to wash up and sleep?” and “Woojin is showering first”?

What would have happened if I hadn’t immediately thought of Jiyoon’s preferred bathroom sex upon hearing that?

Just imagining it is the worst.

“……”

…But considering what just happened between the four of us, it wouldn’t be too strange if Jiyoon’s moans suddenly came from the bathroom…

No, still, it’s better to have ambiguous suspicions than to give Dabin concrete evidence…

Ugh…

Anyway, since I even gave them a direct hint to be quiet, they’ll try their best to suppress the sound.

The soundproofing on the bathroom side is extremely poor, which is worrying, but if Jiyoon just keeps her mouth shut during sex, it should be reasonably quiet.

When you think about it, they just need to be quieter than the sound of water hitting the floor, right?

Then whatever they do in there, the water will wash away all traces and sounds.

And just in case, I can use the bathroom second.

For now, it seems like the immediate crisis has been somewhat contained.

So, what’s left is now.

“……”

“……”

Her.

My friend Dabin.

“…You’re back?”

“…Ah, mm-hmm.”

“……”

Returning to my room, I faced her again. She was still sitting on the edge of the bed, nervously glancing around.

…At least she wasn’t naked like before, but dressed in a knit top and underwear.

Of course, I’d seen them enough to be sick of them by now: her beautifully shaped breasts, her suggestively shaped hips.

Even covered by clothes, they were clearly visible to my eyes…

It’s normal to only glimpse a friend’s naked body in the academy showers.

It’s a relief to finally have somewhere to put my eyes.

A tired yawn lasted only a moment. I silently gazed at Dabin’s profile, unable to even play my usual childish pranks, and quietly sat down next to her.

Sitting right next to her felt too unsettling, so I maintained a gap of about 20cm.

I couldn’t help it. I’d been excited and done all sorts of strange things just now, but my head was starting to cool down.

If I looked back at us from just a moment ago in this state…

…Ugh.

Ew.

“…By the way, why did you go to the bathroom…?”

“W-Well, it’s late. I just wanted to give them a slight warning in case they were noisy and disturbed the other tenants…”

“Ah… That’s true. It is everyone’s bedtime…”

“……”

Actually, if you think about it, that’s completely wrong.

If I’d intended that, I should have gagged them from the start of the sex.

Saying things like “What if the neighbors hear us?” Honestly, I was just trying to excite Woojin, so worrying about noise now is pure nonsense, isn’t it?

But thankfully, Dabin didn’t find any fault.

She just nodded her head repeatedly, then silently blushed at the ears.

…Given that reaction, it felt even more like Dabin was thinking the exact same thing as me.

It felt like she was deliberately letting it go and not finding fault, just because she thought I’d be embarrassed.

To quickly move past this awkward topic, I brought up something else.

“…Hey, Dabin.”

“…Mm-hmm.”

“Uhm… …About what happened earlier…”

It wasn’t to make some lame joke like ‘fighting heat with heat’ [a proverb meaning to fight fire with fire or overcome a difficult situation by confronting it with something similar] in this situation.

This was a topic that, even if embarrassing, I needed to address first.

“…You like him, don’t you? Woojin?”

“……”

It would be strange if she didn’t like him, considering she even raped Woojin while I was drunk and asleep.

Dabin had already admitted it before, so she docilely nodded.

The problem is that Woojin is ‘someone else’s boyfriend’.

While I can’t stop her from having a crush on someone else’s boyfriend, expressing those feelings is, by social convention, something one shouldn’t do.

Unless we were people from ancient times, we’re far from cultures like polygamy…

So, let’s try our best to end it with what happened today.

I let her have sex once, so that’s it.

After this, if Dabin approaches Woojin behind my back…

Even if I can’t catch everything, I’ll try to pay as much attention as possible…

― ……Ugh….

“……”

“……”

…Wait.

Wait, wait, wait.

“S-So, um… …Honestly, a crush is something people can’t help, so I can’t change it no matter what I say, but expressing it directly is another matter, isn’t it? Right?”

“…Uh, mm-hmm.”

“This time, I really made a big decision and allowed it once… So from now on…”

― ……Hey, you…. You’re getting faster…….

A very, very faint noise coming from the crack in the door.

Just as I was trying to cover it with my voice, it inconsiderately seeped into our conversation once more.

It wasn’t a very loud sound, but it was just enough to be slightly irritating.

Would it be best to describe it like the TV noise from the next-door apartment, sometimes heard through the wall?

Or the sound of a clock’s hour hand, heard just before falling asleep.

It just so happened to be late at night, and the quiet surroundings also played a part.

And the fact that I heard it meant,

It might have reached Dabin’s ears too, right?

“…From now on, if you have sex with Woojin…”

― Ugh…, why are you getting fasterrr….

“……”

― Holding back the sound…. …It’s hard, you see……

This is bad.

Once I started paying attention, it felt like I could hear it even better.

For now, they’re probably trying their best to reduce the sound, so they wouldn’t intentionally be making it loud…

…Would it be better to just go and knock on the bathroom door quickly, even if Dabin finds it suspicious?

But isn’t it already out in the open the moment Jiyoon moaned?

Look at Dabin’s reaction. She keeps glancing at the door, as if she heard something too.

But what’s the point of trying to fix it now?

No, wouldn’t fixing it just make things more complicated?

I forced my alcohol-slowed brain to work, but no “aha!” ideas came to mind.

Only cold sweat poured down.

My hands were also sweating, as if I were incredibly nervous.

“…Having sex with Woojin… is…”

“……”

“Well…”

Moreover, now from outside the room…

Thump, thump, thump,

The unmistakable sound of pubic bone forcefully hitting Jiyoon’s pale buttocks,

Explicit sex sounds were clearly audible.

They were now much louder than the sound of water gushing from the shower.

Maybe I should just say, “It sounds like Jiyoon is masturbating in her room.”

It was while I was coming up with such a crude solution, even by my own standards.

Something soft pressed against my thigh.

It was none other than Dabin’s index finger.

“Hey, Hayoon.”

“…Hm?”

“Did you hear something outside…? …Don’t you hear it?”

“……”

Of course, I hear it.

But it’s difficult to admit that directly.

Because then I’d have to explain why my sister and my boyfriend are having secret sex in the bathroom.

I might die of embarrassment. Seriously.

…And if that’s the case, there really is only one option left.

I forced a smile and tilted my head, answering.

“Really? I don’t really know? What sound…?”

Desperately pretending not to know.

It was a scenario that would be ruined if Dabin just grew suspicious and headed for the bathroom, but with my current state of mind, this was the best I could do.

And.

“Uhm… like… moaning sounds…”

“I-Isn’t that sound coming from another house? Like the next-door apartment?”

“It could be…, but… to my ears, it sounds like Jiyoon’s voice.”

“……”

“And it sounds like it’s coming from inside the bathroom…”

“……”

“…But isn’t Woojin-ssi showering right now…?”

“……”

I was spectacularly screwed.

― Ah…, ugh……. Ugh……….♡…♡…….

“…Look. Isn’t this Jiyoon’s voice right now…?”

“I don’t really know…”

“And the thump thump colliding sounds, like when the three of us were doing it earlier… …Ah, I heard it again.”

“……”

Was it just my imagination? Dabin’s voice, tinged with a hint of curiosity.

Immediately after that, my perverted sister’s explicit moans were heard once more.

She must have reached climax with her uterus being pressed. Jiyoon only makes those sounds at such times. It’s probably correct.

I’d love to send a telepathic message saying, ‘Shut your mouth and have sex,’ but as an Evolution-type, not a Magic-type, there’s no way I could pull off such a feat.

All I could do was continue to feign ignorance, as I’d just done.

And such a flimsy excuse couldn’t stop Dabin’s movements.

“I’ll go take a look.”

“…!? T-There’s no need to do that…!”

Dabin stood up.

She turned the doorknob and opened the tightly closed door.

Only these two actions had occurred in that brief moment, but the result was disastrous.

― Ha… ugh, uh?!

From inside the bathroom door.

To the point where “I can’t hear anything” was no longer a viable excuse.

…Loud moans and.

Intense sex sounds.

Were leaking out.

“……”

As if startled, Dabin immediately closed the door, but that didn’t change the fact that the sounds she’d just heard had existed.

Even though the door was closed and the sound softened, it still faintly seeped through the cracks.

Only the countless splashing, slippery water sounds had quieted down.

Jiyoon’s moans were still there, and the persistent thudding sounds, as if they never tired of it, also continued.

In that case, there was one thing that even a fool couldn’t help but realize.

“…Hayoon? Is Jiyoon, right now, cheating with Woojin-ssi…?”

“……”

“…Wait, could Jiyoon also…? …Surely not…”

“……”

“With Woojin-ssi…”

Ah, these two.

Even though they were blood sisters.

…With the same man.

They were having sex.

And one of them was pretending to be the only girlfriend.

Pretending to have a normal relationship.

Deceiving others.

At home,

They had *that* kind of relationship.

Having already shared a boyfriend with someone,

It exists.

“……”

Therefore, I had no choice.

“…I’m really, really sorry, Dabin. I’m truly, truly sorry, but…”

“Mm-hmm…”

“…Can you keep what just happened a secret from our friends…?”

“O-Of course, I’ll keep it a secret… How could I possibly tell our friends about this…”

I had a rough idea of what she might demand later in exchange for keeping the secret, but.

I had no choice.

“…But, is Jiyoon really… like that too…?”

“…Yes…”

“I see… No wonder, then, that she so naturally earlier…”

“…”

Rather than constantly worrying that she might do something strange with Woojin behind my back,

It seemed better to just supervise them properly right by my side.

…Not a belated rationalization, but truly.

*****

…So this was why I was told to wake Hayoon.

I wondered why I was told to wake someone who was tired and asleep…

I’ve really met a strange man.

Our Hayoon.

Jiyoon.

…And,

Me too.