While Taking Care of My Shut-In Little Sister, I Somehow Ended Up Ejaculating Inside a Beautiful Girl - Chapter 17: If We Crossed That Line, It Felt Like We Couldn’t Stop (2)

Chapter 17: If We Crossed That Line, It Felt Like We Couldn’t Stop (2)

I brushed Yuu’s braid from her left shoulder across her chest.

“—Mm! ♥”

She let out a ticklish giggle. I gently placed the bundled braid beside her face. Her glossy hair, shifting from black to dark brown depending on the light, flowed smoothly next to her.

“Ren-chan… ♥ Are you… nervous too? ♥”

“A little.”

As I leaned over her, the room’s light cast a shadow across her body.

Yuu swallowed hard.

“Finally… ♥ Finally, right, us? ♥”

“Yeah…”

Finally.

I’d always known, somehow, that she wanted this with me.

And she’d forgiven my hesitation, my inability to accept her feelings outright, my indecision about moving forward.

It’d be a shame if that went unrewarded—but that’s not quite right.

I’m happy to be like this with her.

This girl, Yuu Onodera, who’s cared for someone like me, who’s built all this time with me—she’s precious.

I want to be with her.

And I know she wants me to want that too.

…I might be done for.

I can’t stop.

“Yuu…”

“What? ♥♥”

In my shadow, her eyes sparkled with anticipation.

Confessing in this moment feels almost unfair.

There’s a time and place, idiot, stop it, me—

“I love you.”

“—!? ♥♥♥”

Yuu froze for a moment at my confession.

Then, reining in a goofy grin, she smiled softly.

“I love you too, Ren-chan ♥♥♥ So much ♥♥♥”

That’s what she said.

“…So, Yuu. Not a fake relationship—”

Through our closeness, our shared feelings.

I couldn’t hold back what I’d been putting off.

My mouth spoke on its own.

“Will you be my real girlfriend?”

“~~~~~!?!?!? ♥♥♥”

She shrank back, overwhelmed, her eyes wide as she stared at me.

Her eyes welled up, tears spilling from the corners, streaking down her temples.

Then, her mouth twisted, and a smile bloomed like a flower.

“Gladly! ♥♥♥”

That’s what she said.

*

“I’m gonna take it off.”

“Come here ♥♥”

I wiped her tears, then, unable to hold back, reached out.

I untied her bathrobe’s sash, opening it.

Her body, fully exposed in front of me.

A sea of skin filled my vision. Fair but healthy, soft flesh.

Yuu’s bare body.

“—It’s beautiful.”

“~~~~!?!? ♥♥”

Her mouth twisted, her expression a mix of joy and faint anxiety.

Shorter than me, her frame more delicate.

Yet her feminine curves, soft and rounded, screamed her difference from my body, her very existence.

Her breasts, two perfect swells.

Not too big, not too small, just barely fitting in one hand, shaped like ideal bowls.

At their tips, cherry-colored nipples pointed toward the ceiling.

Lowering my gaze, her toned stomach revealed a neat navel.

And further down, her crotch, with faint pubic hair just starting to grow—

“Don’t… ♥ Stare so much… ♥”

Unable to bear my gaze, she covered her face with both hands, squirming in embarrassment.

Her thighs rubbed together as she fidgeted.

Naturally, my eyes were drawn back to her crotch—and I noticed the slight dampness at her entrance.

She’d been holding back her arousal, but a little had leaked, moistening the area around her opening.

Even in my shadow, it faintly reflected the light.

It was lascivious, yet somehow beautiful, stirring the primal male in me to no end.

“It’s not… weird, is it…?”

“No. Honestly, sorry, I was mesmerized.”

“~~~!? ♥♥”

She’s shorter, her frame slighter than mine.

Her delicate build might seem fragile compared to a man’s, to mine.

Her proportions—ideal, feminine, slightly rounded—made me want to protect her gentle beauty.

And yet.

Inside, she held a heat greater than mine.

A vibrant life, a beating heart, and not just physical—her strong feelings, firm will, deep love, all there.

Everything that makes her her, laid bare before me.

Not just her body.

Her heart, too, offered to me.

That’s how it felt.

“I love you, Yuu.”

“!?!?”

The words slipped out as I decided to offer my heart too.

Yuu’s eyes widened, her lips pressed tight, her face flushed red as she froze.

“Me too!”

Then, snapping back to herself, she hurriedly answered, following my lead.

“Me too! ♥ I love you ♥♥ Ren-chan ♥♥♥ So much! ♥♥♥”

“Yuu—!”

I brought my face closer.

“—Mm!? ♥ Mmph… another… kiss… ♥♥”

She hesitated for a moment but quickly accepted.

“Mchu… mmph ♥ mha… chu ♥ mchu… mha, chu… ♥♥”

We kissed again, diving back into what we’d shared so fervently before.

“—Mm… ha ♥ ha ♥ ha ♥ ha ♥…”

After a round of kissing, she exhaled hot breaths, looking up at me with dreamy eyes.

“Ha… ha… ha…”

I took in oxygen, gazing at her flushed face, her body.

Under the soft, dim lighting, her bare skin, covered by me.

Her healthy complexion glistened with faint sweat.

Her delicate shoulders and stomach rose and fell with her slightly ragged breaths.

Her nipples stood erect, pointing upward.

From her entrance, the honey she’d held back now dripped onto the bathrobe beneath her.

Her anticipation, excitement, and tension seemed to radiate from her entire body.

My own excitement had reached a point of no return.

Not that I planned to turn back.

“You look… like you’re struggling too, Ren-chan ♥”

“Ah—”

Still lying on her back, she reached for me as I hovered over her.

My bathrobe’s sash came undone, exposing my front.

I shed the annoying fabric, becoming as bare as Yuu, as I was born.

“…Aha ♥♥”

Yuu’s gaze moved from my face to my body, her eyes widening briefly before narrowing with joyful laughter.

“You’re not a boy anymore—you’re a man ♥”

“Yeah. We’re high schoolers now.”

“Right ♥ Yup ♥ We’re high schoolers now ♥”

As if cherishing the passage of time—no, deliberately highlighting it—she placed her hand on my chest.

“Ha… ♥ Your pecs are so impressive now ♥”

Her hand slid downward, slowly.

“So muscular, so strong ♥”

And then—

“…And down there ♥ So big—will it really fit inside me? ♥♥♥”

“—!!”

“It just… twitched! ♥ Twitched! ♥”

Our genitals were fully exposed.

Our states were completely transparent to each other.

Our excitement was obvious at a glance.

“You can really make it move…?”

“It’s kinda embarrassing when you stare like that.”

“You’re staring at me too, so it’s fair, right? ♥”

“Guess we’re even.”

“Yup, yup! ♥”

Yuu stared at my crotch for a while, whispering things like “Wow…” or “This is really going inside me…?” with a mix of awe and shudders.

But every now and then, she flashed a mischievous, seductive smile, looking at me with delight, which made my heart skip.

“I’m not the only one who’s changed. You’ve… grown too, haven’t you?”

“Where are you looking? ♥”

Still breathing heavily, Yuu covered her nipples as if to shield them from my gaze.

You don’t have to hide, you know.

“Come on—here! ♥”

“…Whoa.”

As if reading my mind, Yuu moved her hands from her chest, granting my wish.

Her cherry-colored nipples reappeared.

I stared, entranced.

Like a baby, wide-eyed, watching a classic peek-a-boo game.

Peek-a-boo with boobs (nipples)… sounds pretty dumb.

…And comparing myself to a baby playing peek-a-boo makes my current behavior feel insanely embarrassing.

“You really like these, huh? ♥”

Yuu gave me a loose, affectionate smile, teasing me as she saw my reaction.

“They’re not even that big, you know ♥”

“For someone saying that, you seem pretty confident.”

“’Cause you like them, don’t you, Ren-chan? This size ♥”

“…Well, yeah.”

How does she know?

…She’s right, though. It’s embarrassing how she seems to know my preferences so well.

“Look, look~ ♥ Your ideal boobs, right here~ ♥”

Yuu pointed to her breasts with all five fingers of her left hand, brimming with confidence.

Not too big, not too small, perfectly bowl-shaped—she showed them off proudly.

Just as she said, they were my utopia.

Everything about them was my ideal.

“They’re probably the perfect body for you, Ren-chan… What do you think? ♥♥”

I watched her fingers glide over her breasts, her movements delicate, seductive, almost calculated in their angle and perfection.

My heart raced, and I felt my groin ready to burst with desire.

“They’re perfect.”

“—♥ For real~? ♥♥♥”

At my words, Yuu’s body twitched, her smile growing even sloppier.

“…Can I touch them?”

“Go ahead! ♥ Touch me! ♥”

With her permission, I slowly reached out, covering her breasts with both hands.

“Mm! ♥”

Instead of kneading right away, I let my hands rest, tracing their contours.

My palms moved from the center to the edges and back, circling her nipples, drawing patterns.

After a while, I gently squeezed.

“Mmm~! ♥♥”

Yuu’s body trembled with each touch.

Her marshmallow-soft breasts, mostly fat, resisted my hands with a subtle elasticity. Knowing the delicate structures inside—milk ducts, ligaments, things too precious to harm—I felt her pulse, her life’s gentleness, strength, and heat through my fingertips.

“—Mm! ♥ Ah! ♥ …Oh… your touch… it’s too erotic! ♥♥ …Nhh!♥”

I was only massaging her breasts, but Yuu shook dramatically, rubbing her thighs together. Her entrance, still leaking honey bit by bit, glistened.

Wow… her body looks almost ready.

Still, I want to avoid rushing into penetration for her first time.

I’ve heard it can be painful for women, and foreplay matters more for her enjoyment.

Let’s take it slow. To honor how good she’s been to me, gently, slowly.

“—Nnh! ♥”

As I slid one hand from her breast to her stomach, her back arched slightly.

Just from touching her stomach…?

“Ren-chan… ? ♥”

She’s really sensitive right now. I need to be careful not to hurt her.

“Yuu… okay?”

“—! …Yeah! ♥”

Sensing my intent, she hesitated but slowly spread her legs.

Not wide open—just enough for me to fit, then stopped.

Even for Yuu, whose rationality is at its limit, this must be incredibly embarrassing.

“I’ll be gentle.”

“Okay… ♥”

I shifted from hovering over her to kneeling beside her body.

“…! ♥”

Yuu held her breath, watching my hand reach toward her most intimate place.