While Taking Care of My Shut-In Little Sister, I Somehow Ended Up Ejaculating Inside a Beautiful Girl - Chapter 100: Checkmate, However (2)

Chapter 100: Checkmate, However (2)

In terms of elapsed time, it didn’t feel that long.

…But mentally, I was both exhausted and not.

My still-erect penis had ejaculated at least three times, and I kept thrusting the whole while.

The bathroom echoed with our combined panting—huff, huff—filled with the heat and scent of Yuu and me, mingling with the air freshener. My fatigued sense of smell had even grown accustomed to the raw odor of semen.

“Phew…”

Switching positions—me thrusting from behind, Yuu riding me—I’d been brought to climax repeatedly, and now we were finally taking a break.

“Nhaa…♥♥♥♥”

With a schlop, Yuu pulled my penis from her vagina, letting out a near-scream of pleasure as she trembled.

Then—

“Ren… cha…♥♥♥♥ Ren… chan…♥♥♥♥”

Leaning against the toilet, her hips thrust toward me as she sat, Yuu called my name lovingly, inexplicably hugging the toilet lid tightly.

“Ren… cha…♥♥♥♥ Your body’s so hard…♥♥♥♥ And, thin… too…?♥♥♥♥”

“That’s not me, Yuu, that’s the toilet lid.”

I worried about her dazed state, but… her vagina, twitching and dripping semen from its pulsing entrance, was on full display.

Erotic.

So incredibly erotic.

Erotic enough to make everything else irrelevant.

“Ren… cha…♥♥♥♥ So much cum…♥♥♥♥”

Yuu, her lower half and buttocks slick with fluids, sat on the toilet seat, hips angled toward me.

Her slightly open vaginal entrance twitched, about to close, while semen oozed out—drip, drip—spilling from her insides.

Drip… drip, drip.

The white droplets continued falling into the toilet bowl.

“…”

Wanting to hear her breathing clearly, I leaned close and whispered in her ear.

“Yuu.”

“Nhyaa!♥♥♥♥”

Startled, Yuu blinked rapidly, regaining a hint of clarity.

“Yuu. Did it feel good?”

“Ren… cha…♥♥♥♥ Ren… chan…♥♥♥♥”

Finally letting go of the toilet lid, she noticed me, twisting her neck and hips awkwardly to turn toward me.

“So much…♥♥♥♥ For the baby… thank you…♥♥♥♥”

“You’re welcome… or is that the right thing to say…?”

Perplexed, I held her outstretched hand, kissing her neck from behind.

“—Ngh!?!?♥♥♥♥ No, stop!♥♥♥♥ You can’t…♥♥♥♥ If you do that now…♥♥♥♥”

“Yuu…?”

I thought she was rejecting my affection, but it was a misunderstanding.

“If you touch me now…♥♥♥♥ If I feel you now…♥♥♥♥”

“Touch you…? Feel you…?”

Before I could ask what she meant, Yuu trembled violently, her whole body shaking.

“The cum… it’s coming out!!!♥♥♥♥♥”

“Whoa!”

Shuddering—tremble, tremble—Yuu arched her back.

Her hips, positioned over the toilet bowl, made me wonder if she needed to pee or something else—

“Nnnhhh…♥♥♥♥”

“Oh.”

From her buttocks… no, her vaginal entrance, a spurt.

More semen gushed out.

“No…♥♥♥♥ Stop…♥♥♥♥ I want to keep it in longer…♥♥♥♥ Your cum, Ren-chan…♥♥♥♥ For the baby…♥♥♥♥ It’s all… all coming out…♥♥♥♥”

“Don’t keep that stuff in.”

Spurt, spurt—semen kept pouring from her vagina.

Yuu wailed sweetly, pressing her lower abdomen desperately to stop the flow, her insides likely convulsing.

“No…♥♥♥♥ It’s coming out…♥♥♥♥”

“Let it out, let it out.”

I urged her to release it, while her words confirmed her obsession with my semen for pregnancy, making me a bit frantic.

Yuu’s the type to ditch her pills if I’m not careful. Fearing student marriage, I made her promise to keep taking them in exchange for indulging her creampie desires.

…But I can’t shake the feeling she might break that promise, leaving me on edge.

“No…♥♥♥♥ No…♥♥♥♥ Don’t come out…♥♥♥♥ You finally came inside me after so long…♥♥♥♥”

“So long…”

It wasn’t that long—just two or three days of abstaining due to various issues.

“Why…♥♥♥♥ What’s happening…♥♥♥♥ Your cum, Ren-chan…♥♥♥♥ I’m telling it to stay, but it’s coming out…♥♥♥♥”

“Seriously, what’s with you…”

Her obsession with my semen was intense.

Her labia had closed back to a single slit, but from the upper end—near her anus—semen still spurted out.

Spurt, spurt.

Splurt.

Pop, splurt.

Occasionally making lewd, almost fart-like sounds.

Her trembling buttocks kept dripping white droplets.

…Man, the semen just won’t stop…

“I’m ridiculous too… how much did I even cum? And in someone else’s house…”

Speaking of, this is Yakko-chan’s place.

“Ren-chaaan…♥♥♥♥ I wanna get pregnant…♥♥♥♥”

“No pregnancy.”

As expected, Yuu would jump at pregnancy if I let my guard down.

Even as I checked her, my softened penis started hardening again slightly.

“Man, I’m…”

I was stunned at myself.

Snapping back to reality felt like a bucket of cold water, my reason rushing back.

A chill ran down my spine—

Like stepping out of a sauna into cool air, a pleasant breeze. A shift in body temperature—

“…Um.”

“—What!?!?”

I spun around, startled.

…The chill down my spine wasn’t my imagination.

The bathroom door was wide open.

Standing in the hallway was a blonde girl with twin-tails, sharp eyes, and a slender frame—an unmistakable beauty.

The homeowner, Yakko Tsukimi herself.

“…What have you done?”

“…”

I thought Yuu locked the door.

Did she forget, or…?

“…This is the worst.”

“…Yes. Sorry…”

The homeowner would know how to unlock the bathroom from outside, of course.

…Why didn’t I consider this earlier?

“…”

“I’m sorry.”

Yakko stared at us expressionlessly, like a mask.

Her gaze occasionally flicked to my exposed lower half or Yuu, dripping semen into the toilet behind me.

…I have to apologize.

For turning someone else’s bathroom into a hookup spot.

For using her toilet like a sex room.

“Ugh… what do I do…”

“…”

Yakko, initially shocked, looked away slightly, her words accusatory.

…She’s definitely accusing us.

“You… you did that in someone else’s house? Seriously…”

“I’m sorry…”

She’s absolutely right. My mind blank, I could only apologize sincerely to Yakko.

“Ugh. Ugh… what do I do, me…”

“I’m sorry…”

Yakko was still shaken, and her anger was easy to imagine.

She probably rushed to open the door, hearing Yuu’s moans or realizing we were… going at it in her bathroom. Or maybe the timing doesn’t add up—

My thoughts started analyzing the situation, even now.

But they were spinning uselessly.

I probably can’t reach the right answer in this state.

“Ugh… Ren-kun…”

“…I’m sorry.”

Yakko’s eyes finally landed directly on my penis.

It had softened, drooping limply, no longer erect.

Though drying, my penis, coated in my semen and Yuu’s fluids, glistened faintly. Some white, frothy residue lingered at the base.

“…That’s a hell of a smell.”

“Really sorry!!”

I bowed deeply.

Partially to hide my penis, but ninety percent was genuine apology.

“God… Ren-kun… and Yuu-chan, you’re such perverts…”

“I’m sorry!!”

No excuses. I just kept apologizing, bowing repeatedly—

Then.

(…Hm?)

For some reason, my eyes caught Yakko’s bare legs.

Was she changing? No tracksuit anymore—just an oversized shirt, her lower half… unclear.

The shirt, a men’s style (why men’s?), hung loosely, hiding her lower half.

…Meaning, she might not be wearing anything down there.

(…What? What’s going on???)

My eyes swam, a sensation I hadn’t felt in ages.

Why that outfit—mid-change? Why now? I’m the one in trouble here—how do I get her to forgive us? We went wild in her bathroom—what kind of lunatic—hide Yuu’s naked body—no, mine too—

…I was panicking.

This was an unprecedented crisis.

“This… this is honestly shocking.”

“Really sorry!!”

Yakko crossed her arms, tapping the floor with one bare foot, radiating exasperation and anger.

No slippers either…

Was she really mid-change?

“You don’t want this spread around, right?”

“Of course not.”

Thump.

My heart jumped.

…Yakko was suddenly using this as blackmail.

Her unyielding demeanor sprouted seeds of anxiety in me.

“If you don’t want this spread around—”

“—!!”

Here it comes.

Some outrageous condition.

“…”

I locked eyes with her.

Directly.

“—!?”

Yakko gasped, staring back.

Tension mounted between us.

“…”

“…”

We stared silently, both holding our breath—

…Maybe.

I braced myself for her to say something like “we’re done.”

We committed an unforgivable breach of etiquette.

Yuu dragged me into it, but my indulgence led to this.

Losing a friend is a painful lesson, but I’d have to accept it.

I’d apologize later to mend things, of course.

Losing a friendship over this… I don’t want that.

“If you don’t want this spread around…!!”

“If I don’t want it spread around…!?”

Gulp.

I braced for Yakko’s verdict.

“If you don’t want this spread around, with m-e…!!”

“…With Yakko-chan?”

No way.

A chilling thought crossed my mind.

Suicide pact.

She wouldn’t demand we die together, would she? She’s not that unhinged, but if she says it, I have to refuse—my thoughts spiraled again.

But—

“W-i-t-h m-e…!!”

“…Nemo?”

My mind flashed to an old fish movie I saw as a kid, but—

“…No, I mean.”

Yakko shook her head, correcting herself. She’d misspoken.

“W-i-t-h m-e…! S-e-x…!!”

“…Huh?”

What? My mind raced with predictions of her next words.

All of them were dangerously bad.

Especially for me, with Yuu as my girlfriend.

…But.

What Yakko said was both expected and utterly unexpected.

“L-e-t m-e s-e-e y-o-u-r s-e-x…!!”

“…What???”

Not “have sex with me” or “let me join.”

Let her watch our sex?

“What…? You want to… watch us have sex?”

“That’s what I said!”

“…Huh…?”

Countless question marks flooded my mind as I tilted my head.

“I’ll forgive you for today if you do!!”

Her face red with anger or embarrassment, Yakko shouted.

“How’s that!? Generous, right!! The f-u-t-u-r-e g-i-r-l-f-r-i-e-n-d!! So magnanimous about her ex’s affairs!!”

“…”

I had questions—why this request, why she called Yuu my “ex,” and more.

…But I couldn’t read Yakko’s intentions or emotions.

“What’s it gonna be, Ren-kun!?”

“…Uh… um…”

My mind went blank again.