While Taking Care of My Shut-In Little Sister, I Somehow Ended Up Ejaculating Inside a Beautiful Girl

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Chapter 99: Checkmate, However

We rushed back to Yakko-chan’s place in a flurry.

After stashing the groceries in the fridge, just as it seemed we’d either start cooking or take a break—

A shadow approached at breakneck speed in the corner of my vision—

“—!♥♥”

“Whoa!”

A hand shot out from the gap of an open door behind me, yanking me inside.

Into the bathroom.

“♥♥ ♥♥ ♥♥ ♥♥”

“Y-Yuu…!?”

The hand belonged to Yuu, her breath heavy—huff, huff—as she gazed up at me.

Amid the bathroom’s air freshener scent, her warm breath grazed my collarbone.

“Ren-chan…♥♥ I c-a-n-’t h-o-l-d b-a-c-k anymore…♥♥”

“‘Can’t hold back’—?”

She locked the bathroom door behind her.

N-No way—here!?

“Yuu, calm down a bit—”

Then, the sound of slippers pattering frantically came from beyond the door.

“Hey, you two!? W-What are you about to do!? In someone else’s house!?”

Yakko, panicking outside, pleaded in a frantic, distressed tone.

She’s got the right idea here.

“Y-Yeah, Yuu! This is Yakko-chan’s place—”

“♥♥ ♥♥ ♥♥ ♥♥”

“No use, she’s not listening!?”

I tried to stop her, but it wasn’t getting through.

“Ren-chan…♥♥ We’re a-l-o-n-e…♥♥”

“I’m right here!?” Yakko pounded on the door.

“Yeah, Yakko-chan’s right there!?”

“♥♥ ♥♥ ♥♥ ♥♥”

But Yuu seemed oblivious to the outside world’s sounds or voices.

“Ren-chan…♥♥”

Her slightly narrowed eyes weren’t a sloppy grin but a look of intense adoration.

Her flushed cheeks signaled clear danger as she gazed at me dreamily.

Her long lashes fluttered, revealing the dark abyss of her eyes, glinting with a maddening intensity.

“Ren-chan…♥♥♥”

As she leaned closer, she whispered in my ear.

“Pour a-l-l your love into me, Ren-chan…♥♥♥”

“—!?”

Then, bending at the waist, she started unbuckling my pants with a clink, clink.

“Yuu, are you serious?”

I asked, feeling a slight unease.

…Even if her arousal switch flipped, would she really act this fast?

…No, she might, but still—

It felt off, somehow.

No context, no prelude… we hadn’t whispered sweet nothings or embraced. To think just brushing fingers while taking her bags would push her this far—I didn’t expect it.

“You’re already this hard…♥♥♥ I love how virile you are, Ren-chan…♥♥♥”

“Well… uh…”

Sure, I’m already hard, I’ll admit!

But beyond that unease… honestly, I’m pretty thrown off.

Should I go along with this or not? No, “common sense” says I should clearly stop her.

We haven’t had lunch, we’re in someone else’s house, and the homeowner’s right outside…

Finding a reason not to stop is harder.

“…”

“…Hm?”

Speaking of the homeowner, my attention shifted outward.

The hallway had gone silent. Yakko’s voice, presumably outside, was gone.

“I c-a-n-’t anymore…♥♥♥ My womb’s aching, I’m at my limit…♥♥♥ I can’t wait for your cum, Ren-chan…♥♥♥”

“You’re really serious, Yuu…”

And then, not content with stripping my lower half, Yuu slid down her own jeans right in front of me.

Her seriousness hit me hard, but… wait, really serious?

Her eyes and energy were dead serious—her preparations were complete.

“Yuu, are you already—”

“Ehehe~♥♥♥”

Her white panties, pulled down, showed a trail of her arousal dripping from her core. The crotch was darkened, soaked through.

“Look…♥♥♥ I can’t wait for your cum inside me, my p*ssy’s already this w-e-t…♥♥♥”

“…Looks like it.”

She grinned sloppily, tempting me.

Mimicking the motions of self-pleasure, she stroked the pubic hair stuck to her skin with her arousal.

“Wanna touch?♥♥♥”

“…”

“♥♥♥”

Gulp. As she gleefully watched me, I reached out, almost in a trance.

…I reached out.

“Nn…♥♥♥”

My fingers brushed her sparse pubic hair.

As the wet strands parted, I felt the soft flesh around her lower abdomen and sex.

“Ren-chan…♥♥♥ God, your hands feel so good…♥♥♥”

“…”

I gently caressed her wet folds.

It wasn’t my first time seeing or touching her, yet I couldn’t look away.

The spot I touched dipped slightly, asserting both softness and resilience.

“Nnh…♥♥♥”

I pressed lightly, feeling the subcutaneous fat and muscle fibers.

“Aah…♥♥♥”

Her labia, already sticky, made wet sounds, clinging to my fingers.

Her skin was endlessly captivating, like I could touch it forever.

“How’s it feel?♥♥♥ Wanna put it in?♥♥♥”

“Yeah…”

“Nfufu…♥♥♥”

As I toyed with her entrance, swallowing hard again, she laughed happily.

“You’re pent up too, Ren-chan…♥♥♥ I’m so happy…♥♥♥”

The more aroused I got, the more she delighted.

“All the messy stuff’s done, right?♥♥♥ So you can cum inside me as much as you want…♥♥♥ Let’s do it…♥♥♥ Fill my p*ssy with your cum, spurt after spurt…♥♥♥”

“Yeah…”

Yeah…

She’s wet enough, foreplay’s done, it’s about time, right?

…Or is it?

In my head, reason and instinct started clashing.

As my mind fogged, a voice screamed I was forgetting something… but what? I sat on the toilet seat.

“Nfufu…♥♥♥ Nfufufu…♥♥♥ Ren-chan…♥♥♥ Fill my womb, my insides, with your cum…♥♥♥”

“…”

Am I someone who can’t prioritize common sense? A fleeting despair crossed my mind, but my heated groin blurred even that.

“N, sho…♥♥♥ Nn—sho…♥♥♥”

Yuu, jeans tangled at her ankles, shuffled to turn around.

“…”

As she did, her hand grazed my erect penis, the sensation almost pleasant.

“Nfufu…♥♥♥ Your cock’s about to go in my p*ssy…♥♥♥ Watch closely…♥♥♥”

She rubbed my tip against her lower labia, aligning it with her entrance.

“I couldn’t wait…♥♥♥ To have sex with you, Ren-chan…♥♥♥”

Her words thrilled me as she slowly lowered her hips.

“Nnnnnn~♥♥♥♥”

Slurp, slurp—or rather, squelch, squelch.

Her lubricated, slick vagina parted as my penis pushed through her folds, meeting resistance beyond words.

Her trembling legs and the intense tightening of her vagina nearly pushed me to climax early.

“Yuu, ease up a bit…!”

“No…!?♥♥♥ I-I…♥♥♥ Oh, god…!?♥♥♥”

But it seemed the tightening wasn’t intentional on her part.

“I…!♥♥♥ Not yet… I don’t wanna cum yet—♥♥♥”

Yuu, shaking her head in confusion, squirmed before fully lowering onto my lap, her vagina’s irregular contractions and countless folds stroking my penis.

“—Nya…♥♥♥ My insides…♥♥♥ They’re loving you, Ren-chan…♥♥♥ So happy to be one with you…♥♥♥”

“Kh…!”

Her hips moved in sync with her vagina, her writhing so erotic it made me harder, my penis eager to hit her deepest parts.

“Yuu—!”

—And, knowing full well that unrestrained thrusting pleased her most, I…

…Oops.

Driven by the tingling heat of impulse, I grabbed her hips with both hands—

“!?♥♥♥ Ren-chan, finally—♥♥♥”

And slammed her down.

“You’re—”

My penis easily reached her deepest point—her cervix—kissing it with a thud.

“—Oohh…♥♥♥♥♥”