While Taking Care of My Shut-In Little Sister, I Somehow Ended Up Ejaculating Inside a Beautiful Girl - Chapter 41: The Childhood Friend Turned Lover Has Become Even More Intense

Chapter 41: The Childhood Friend Turned Lover Has Become Even More Intense

After school, the group chat we made during lunch break is already buzzing. While packing up to head home, I fiddle with my phone and get lost in thought.

“Yakko’s heading home with Nijouin… No, this is the pattern where they hang out afterward.”

Before I know it, Yakko and Nijouin seem to have gotten pretty close. They must be chatting a lot when I’m not around. If they joined a club together, they’d probably make more friends easily, but they’re not quite there yet. Nijouin’s sincerity in valuing each relationship, or maybe her enjoyment of the process, seems to mesh well with Yakko’s pace. Both being wealthy ojou-sama types might help them click, too.

Speaking of clubs—

“Didn’t Mizuno say she was going to a club?”

I ask her in the chat, and it turns out she’s already applied to be the soccer club manager. No doubt, her goal is to win over Sorimachi, her crush. She confessed last week and is moving fast.

Mizuno’s a classic, orthodox beauty when she’s not cornered into a panic. With her boldness, it feels like only a matter of time before she and Sorimachi get together.

It might be fun to check out their club sometime with the others. I can already picture Sorimachi flustered by Mizuno’s daily advances as a manager.

But it’s a critical time for them, so outsiders like us should stay out of it for now.

Mizuno needs to steadily build their relationship, tweaking the pace to find the right momentum. Gaining trust, getting closer, and stabilizing things before others step in to help—that’s the fastest route. Assuming everything goes well, it’ll take about a month to reach a solid turning point. But to be realistic, aiming for three months—after first-term finals and into summer break—is more practical.

If their bond is strong enough by then, they’ll have exchanged contact info. Unless they’re swamped, summer break offers plenty of time outside club activities. Plus, as a club member and manager, they’ll have chances to interact even during practice. Either way, one-on-one time will be easier.

The question is how much Mizuno’s confession shook Sorimachi. That’ll shift the timeline. Daily small actions can only do so much—you need events or bold moves for big progress. Whether Mizuno realizes it or not, she’s positioned herself close to Sorimachi to seize any opportunity. Her tenacity makes me think a miracle could happen by this weekend’s three-day holiday or even Golden Week. Am I being too biased toward my friend?

…Maybe I’m seeing it this way because Mizuno reminds me of someone.

Her relentless drive, using even mundane moments to her advantage, feels so much like that someone.

Though, Mizuno’s apparently leaning heavily on Yuu for advice. In the chat, she’s called Yuu “shishou” (master) a few times, half-jokingly.

…And once, she slipped and called her “kyouso” (cult leader), quickly deleting it after Yuu pointed it out. I caught it by pure chance.

What is Mizuno learning from Yuu? And what’s Yuu’s role here?

It’s too intriguing.

And that “master” and “cult leader” herself, Yuu—

“Ren-chan! ♥ Let’s go home! ♥”

“Yeah.”

As usual, she calls out to me for our walk home together. I join her at the classroom entrance, and we head out side by side.

*

We’re not far from home when I can’t hold back anymore.

“So, Mizuno’s calling you ‘shishou,’ huh?”

I had to ask. It’s been eating at me.

“W-Well, yeah~” Yuu’s eyes dart around, a bit awkward.

“She’s gotten kinda attached, haha…”

She laughs it off, but it’s clear they’ve grown close fast. It probably started with Mizuno’s love advice requests, but Yuu must see value in keeping it going. They seem to click as friends, too.

“How’s Mizuno’s confession to Sorimachi looking? Any chance of success?”

“As of when?”

“Your take right now is fine.”

“Hmm…”

Yuu puts her index finger to her chin, striking a cute thinking pose. It’s calculated, but she pulls it off. Her long, glossy black hair sways as she walks, her eyes blinking and glancing at the sky.

“Probably less than 20%,” she says after a moment, dropping a harsh number.

I kinda saw it coming, but that’s low. It’s like saying Mizuno and Sorimachi are almost certainly not getting together now.

I won’t say she’s overthinking the confession. She’s got her reasons.

“20%… Even though it was her second confession, getting rejected twice is rough, huh?”

“No, it’s not that. It was her second confession, but being honest about her feelings was a plus. Coming from the same middle school and showing her earnestness helped.”

“I thought Sorimachi seemed shaken.”

“Yeah, he was shaken. But just shaken. If you’re just shaken, you go back to normal… right?”

“…”

Yuu puffs out one cheek, shooting me a resentful glance before breaking into a smile. “Kidding!”

“Don’t look so guilty. My wish already came true, so it’s fine! ♥”

“…”

So, her estimate comes from personal experience.

“Still, Mizuno’s sloppy at key moments. If she likes Sorimachi that much, she should’ve studied his preferences in middle school, made moves, and built a childhood friend-like bond.”

“You don’t have to be childhood friends—”

“Childhood friends are the strongest! Right, Ren-chan? ♥”

“Uh… yeah.”

Yuu insists “childhood friends are the strongest!” and won’t budge. It’s a core belief for her, shaped by our relationship. Since it led to us dating, “childhood friend” is less a belief and more a religion to her.

…Wait.

Religion…? Cult leader…?

No way.

Asking more feels scary, so I stay quiet.

“…Just don’t overdo it, okay?”

“Huh? Yeah, got it,” Yuu nods, tilting her head.

“But, hey, Ren-chan? ♥”

“Hm?”

“Childhood friends are the strongest! ♥”

“…? Yeah, sure. Strongest. You’re the strongest. The best in the world.”

I humor her.

“That’s kinda half-hearted! Do you really think so?”

“I do. To me, my childhood friend—you—are the strongest. I’ve never loved anyone like this.”

“…Ugh! ♥ Ren-chan, you… ♥ I love you too! ♥”

…Well, we got sidetracked, but love aside—

Yuu’s point is clear. Starting from zero, dating only happens if the other person’s shallow, desperate, or after something physical. A shallow bond might stir someone with a confession, but it doesn’t guarantee mutual feelings.

To turn a crush into mutual love, Yuu believes you need a certain level of closeness. But too close, and you risk becoming just friends or siblings. It takes finesse, effort, or strategy to stay romantic.

Keeping someone aware of you as a romantic interest while closing the distance… that takes relentless effort and deep, boundless love.

Thinking this far, I feel a bit embarrassed.

“Huh? ♥ Blushing a little? ♥” 

“Yeah, kinda.”

I decide to share what Yuu’s behavior made me think about, using Mizuno’s case. “In a case like Mizuno’s, there’s some chance of naturally becoming mutual, right?”

“Just a nonzero chance,” Yuu cuts in sharply.

“If you think someone’s valuable to you, others probably do too. Sitting back and doing nothing is the height of stupidity. No time to be snapping at Tsuki-chan.”

“That’s harsh.”

“But it’s true! If their feelings aren’t on you and you want them to be, doing nothing is crazy. Just dreaming? That’s absurd. Why not act? Why not try? I don’t get it.”

“Well…”

My “naturally” didn’t mean “do nothing,” but…

Realistically, there are obstacles: fear, thinking they’re out of your league, or giving up. Maybe they like someone else, or you hesitate to interfere. Or external factors—environment, circumstances.

Sure, “naturally” is a thin hope when you look at probability. That’s probably what frustrates Yuu, who’s so honest with herself.

“If you give up that easily, maybe you’re not serious.”

“Hmm…”

That’s tough to judge. I’m no love expert, and I only recently started actively responding to Yuu’s feelings. Growing up, I gave up on things outside family early on.

Yuu’s relentless pursuit of her happiness is almost dazzling to me. It’s pure luck that someone as captivating as her loves me.

I’ve got some shallow knowledge, so I test her thoughts. “What about a childhood friend who doesn’t confess before a move and grows distant? Like, they have to give up?”

A random scenario pops into my head.

“…What?” Yuu stops walking.

I stop too, caught by her reaction.

She’s trembling, her face pale.

“N-No way, Ren-chan…!? You have another childhood friend besides me…!?”

“No, no! Just a hypothetical!” I deny frantically, sweat beading at my temple.

Her words sound comical on paper, but for a split second, her eyes looked empty. That was chilling. Really chilling.

“I mean, like, thinking of the other person. Worrying a confession might bother them, so you keep your feelings locked away. The earnest childhood friend, forced to part ways.”

I think I saw a scene like that in a drama. Or was it a manga?

“N-No way, Ren-chan, are you thinking of moving!?”

“No! I just… heard about a scenario like that somewhere.”

A high schooler like me deciding to move? My house is practically my responsibility, but I’m not planning a move.

“Phew…! Don’t scare me like that!” Yuu sighs in relief, her color returning.

We start walking again.

…Yuu’s reaction was intense. This topic’s bad for her mental health, so I’ll avoid it from now on.

“…Anyway, to answer your question…” Yuu continues, surprising me. I thought we’d move on.

“If—just if—someone I loved was moving, and that love was really important… I’d follow them… shouldn’t I…?”

She glances at me, gauging my reaction, framing it as a general “should.” Her hesitation shows she’s unsure.

But to address her concern—

It depends on the person. Action depends on personality (proactivity), capability (finances), and environment (social or ethical permissions). Reality’s full of barriers that block free love. Everyone bends to these unconsciously.

“What do you think, Ren-chan…?” Her anxious eyes meet mine.

Something deep—too intense—peeks from within her, driving her actions.

However, the answer to her question, the answer to her anxiety, was decided from the start.

As I said earlier, it all comes down to what the person chooses to do.

Not what they want to do, but what they actually do. That’s what matters.

Your actions, and the fate they bring, are ultimately up to you alone.

“I think it’s up to the person. Not just what they want, but what they end up doing. That’s how the world works, pretty much.”

“~~~~~♥♥♥”

My answer, drawn from my limited life experience, makes Yuu beam with a delighted smile.

“Using everything you’ve got and working hard is the right way, isn’t it? ♥ That’s how you end up with your destined person! ♥”

Yuu, puffed up with pride, flashes me a sidelong glance and a smile.

“Destined person, huh?”

“…Nfu! ♥”

She lets out a happy sound at my murmur.

“Does it have to be a childhood friend to be a destined person?”

“A childhood friend bound by fate is what makes it the strongest! ♥”

“Oh, that’s your take?”

As always, her “childhood friends are the strongest” and “destiny” talk feels vague to me, but I think I get her feelings.

To the girl who waited so long for me, my precious childhood friend who kept showing her affection.

I want to keep responding to her feelings moving forward.

“…Honestly, whether we’re destined or childhood friends or not, I feel like we’d still be walking side by side like this.”

“~~~~~!?!?!?♥♥♥”

Yuu’s eyes widen as she stares at me.

“…What? What’s up?”

“That’s—s-so unfair…!! That kind of thing… ♥♥♥”

“What?”

I was just being honest, sharing my thoughts.

Her way of seeing the opposite sex, her standards.

My way of seeing the opposite sex, my standards.

Because we’ve known each other since we were kids, I can say things like that.

Yuu’s so exceptional that she must’ve felt cornered at some point.

And me? If I saw her like that, I wouldn’t hesitate to lend a hand.

“Ren-chan… ♥ I was holding back until now… ♥ You can’t do that… ♥”

“…”

Oh—now I get why she’s acting like this.

Still, we can’t get carried away on a public street. I try to act normal as we walk.

“Ren-chan… ♥ Why’d you say that now? ♥ I can’t hold back until we get home… ♥♥♥”

Her fingertips brush the back of my hand. I have no reason to refuse holding hands with her.

In the next moment, our hands clasp together naturally.

The way we hold hands shifts with our emotions—sometimes tight, sometimes gentle.

Right now, we lace our fingers softly but firmly, feeling a calm, warm connection.

Walking home quietly, feeling this warmth, isn’t half bad.

…That’s what I thought, letting my guard down for a moment.

“♥ ♥ ♥ ♥”

Yuu’s breathing grows rough, sharp exhales.

Oh… I realize my words got her too excited.

“No… ♥ I held back this morning… ♥ I showed you I could be fine… ♥”

“…”

This morning? She wasn’t holding back at all, from what I saw.

But I guess, in her mind, that was her trying.

…So, this morning, out in the open, I could’ve been devoured by her? A lewd, terrifying future was possible…

“♥ ♥ ♥ ♥ ♥ ♥ ♥ ♥”

“Y-Yuu…?”

I feel her heavy breaths near my shoulder.

“Ren-chan… ♥ Ren-chan ♥ Ren-chan ♥ Ren-chan ♥ Ren-chan ♥”

Before I know it, she’s pressed against me, her melted expression gazing up.

“—! Crap…! We’re running, Yuu!”

“Ren-chan ♥ Ren-chan ♥ Ren-chan ♥ Ren-chan ♥ Ren-chan ♥ Ren-chan ♥—”

I grab her hand and sprint.

She follows, pulled along, her dreamy eyes fixed on me.

…Maybe it’s my imagination.

No, I hope it’s my imagination.

But Yuu’s switch—it’s flipping too easily now, and her boiling point for this… isn’t it lower than before…?

*

I thought becoming official would calm Yuu down a bit.

But reality didn’t work out that way.

She waited eight years—knowing the exact date she fell for me, her devotion so intense, too intense.

Now, she lets go of her restraints so easily.

“Yuu…! H-Hey, let go of my pants! Wait!”

“Ren-chan… ♥♥”

My attempts to stop her barely register.

I’m pulling her along as we run, but she’s surprisingly light. Some shred of rationality must be holding her back from acting out on the street.

Luckily, we’re close to home now.

Fifty meters…

Forty…

Thirty…

Twenty…

Ten… Got it!

“Ugh…”

At home, I fumble for my keys and jam them into the lock. Even this brief moment feels agonizing, not knowing what she’ll do next.

To an outsider, it looks like I’m dragging a classmate into my house—because I am, but for a good reason. Letting her go back to the Onodera house in this state? No idea what’d happen.

“Ren-chaaan… ♥♥♥”

“Wait, Yuu—Yes, it’s open!”

She grabs me from behind, burying her face in my back.

“Suuuuu~ ♥♥♥”

She inhales deeply.

“Haaaaa~ ♥♥♥”

And exhales just as hard.

“Calm down, Yuu—!”

Her hands, wrapped around my waist, wander to my lower abdomen, stroking my penis over my uniform pants.

“This way—! Here we go—!”

“Kyaa… ♥♥♥”

I drag her clinging body inside, shut the door, and lock it.

Finally, I can breathe.

“Phew…”

I kick off my shoes and step inside.

She loosens her grip during this, a sign some rationality remains, which is a relief.

“Yuu—”

But that relief is short-lived.

“Ren-chaaan! ♥♥♥”

“Whoa!?”

Of course, she doesn’t calm down on her own.

One step into the hallway, and she tackles me to the floor.

I’m flat on my back.

Her shoes fly off with a pop, soaring through the air at the edge of my vision.

“♥ ♥ ♥ ♥”

Still breathing heavily, she straddles me.

“Haa ♥ Haa ♥ Haa ♥ Haa ♥”

Her melted expression looms closer, breath even wilder.

“—Ngh!?”

“Nchuu~ ♥♥♥”

She dives in for a passionate kiss.

Her long hair drapes over my neck, silky but ticklish now.

“—Nhaa… ♥♥♥”

It’s a deep, tongue-twisting kiss, but shorter than usual.

I look up at her, wondering why.

“…Nfu ♥♥♥”

She gives a seductive smile, stands while straddling me, and tosses her blazer aside.

She unfastens her skirt, unzips it, and lets it drop. Tossed aside.

Then the black spats-like inner pants under her skirt—off they go.

And her white underwear beneath—covering her crotch shyly—she peels them off.

The crotch is soaked, leaving a large stain, and the panties catch on one leg as they fall.

The sequence of her undressing carries a deliberate, teasing pause, as if calculated to stoke my desire. I can see her intent.

Noticing she still has a sliver of rationality left, I try to negotiate—

“Hey, Yuu, we’re still in the entryway. At least let’s get to my room—”

“—We’re already home, so it’s fine, right? ♥♥♥”

“What?”

Cutting me off cleanly, Yuu stands in what’s practically a naked dress shirt look.

Just her shirt and bra on top.

Her lower half—completely unprotected—bare. She must feel some embarrassment, as she subtly covers her faintly hairy private area with her fingers while squatting down.

She kneels between my legs.

“—Ugh!? W-Wait, Yuu—!”

A soft rustle.

Immediately, I feel her gentle touch stroking me over the fabric.

“—Haha! ♥♥♥”

With a loving, melted expression, Yuu gazes at my crotch, rubbing my penis through my pants. She strokes it persistently, obsessively, as if savoring the sensation itself.

“It’s already like this… ♥♥♥ I barely touched you, and it’s so big! ♥♥♥ Just from my hand! ♥♥♥ God, Ren-chan, you’re so naughty! ♥♥♥”

“You’re the naughty one!”

“Ren-chan, you’re too naughty… ♥♥♥ So naughty it’s thrilling! ♥♥♥”

“I…”

I don’t know how to respond and fall silent.

“—Nfufu! ♥♥♥”

Her flushed cheeks, her excited state, her bewitching smile draw my gaze irresistibly.

“…”

I swallow hard, muttering confusion but letting her have her way.

My lower half is honest.

Her affectionate caresses, her stimulation, make my penis react excessively.

…Honestly, it’s like I’ve forgotten my recent impotence. My penis seems thrilled, as if parched soil is being drenched with rain, revitalizing the earth.

“It’s okay now… right? ♥♥♥”

“…Yeah.”

Yuu fumbles with my belt, her movements a bit clumsy, then unfastens the hook and pulls down the zipper.

She’s clearly trying to strip me completely—pants and, of course, underwear.

…But it seems a bit tricky for her.

“Hard to do, huh? I’ll take them off myself.”

“—No way! ♥♥♥ Stay still! ♥♥♥”

“…”

My last attempt at resistance fails. She’s not listening.

Her rationality is barely hanging on.

That sliver of rationality confirms it.

This is a rampage driven by her intense desire.

“I’m taking them off! ♥♥♥ Really taking them off! ♥♥♥”

“Go ahead.”

With my full surrender, my pants are slowly pulled down. The sight of a half-naked Yuu struggling to bare my lower half is oddly erotic.

Finally, my pants come off—but not completely. They’re left tangled around my ankles, half-on.

Yuu repositions herself, kneeling within the loop formed by my pants and ankles.

“…?”

“Hehe! ♥ You can’t escape now~ ♥♥♥”

“I’m not escaping.”

She must’ve done it to keep me from running, just in case. Thorough. I mentally roll my eyes but watch her actions.

“—♥♥♥ Haha! ♥♥♥”

My lower half is down to just underwear now.

She swallows hard, staring at my erection straining against the thin fabric, pointing skyward.

“So… amazing… ♥♥♥ …Doesn’t it hurt, being like this…?”

“It does.”

“What…? Is it okay? If it’s always like this—”

“If you think so, then hurry and take it off.”

“…! ♥♥♥ Okay! ♥♥♥ I’ll make Ren-chan’s penis feel better! ♥♥♥”

“…”

Her lewd words, whispered in a sweet, dreamy voice, are impossibly erotic.

“I’m taking it off, okay? Really taking it off… Alright? ♥”

“Go ahead.”

After yet another round of her asking and my permitting, she finally hooks her fingers in the waistband of my underwear and starts pulling them down.

“Ngh… Oh, it’s caught—”

“Ugh!?”

“Ah!? S-Sorry—!!”

Being stripped so carefully, so slowly, by the opposite sex is unexpectedly stimulating for my penis. The fabric grazes the tip, her wrists and fingers brush my lower abdomen, and my arousal spikes. The slow tug of my underwear catching on my fully erect penis makes me let out an embarrassing sound.

“I-It’s fine. Just felt it a bit.”

“—!? ♥♥♥ Y-You feel it too…? ♥♥♥”

“Of course.”

It’s feeling it that leads to climax, after all.

And so, Yuu carefully lowers my underwear, and finally—

“It’s off…! ♥♥♥ I finally stripped Ren-chan… ♥♥♥”

“…”

My penis springs free, bouncing out over the waistband of my underwear, now at my thighs.

She stares at it, trembling in her direct line of sight.

“This is… This is a real penis… ♥♥♥ And it’s Ren-chan’s… ♥♥♥”

She swallows again, leaning closer.

As if drawn to it, despite its potentially grotesque appearance.

“Haa… ♥ Haa… ♥ Haa ♥ Haa! ♥ Haa! ♥ Haa! ♥ Haa! ♥ Haa! ♥”

Her dreamy eyes fixate on it, closing the distance, her breathing growing wilder.

“This is Ren-chan’s… R-Ren-chan’s penis… ♥♥♥ The penis that came inside me so many times… Ren-chan’s penis… ♥♥♥”

“D-Don’t keep saying ‘penis’…”

At this point, propriety’s out the window, but hearing it makes me the embarrassed one.

Unexpected embarrassment. This is quite the shame-play…

“~~~~~~♥♥♥”

Gulp.

Yuu, staring intently at my penis from close range, swallows hard.

“Sniff sniff ♥♥♥ …Haa… ♥♥♥”

“—!?”

She twitches her nose slightly, sniffing my penis, then lets out a sigh. For a moment, she wears a rapturous expression.

Her long hair falls over her cheek from behind her ear.

“Hey!? Stop sniffing! That’s too much! It’s embarrassing!”

“Sniff sniff ♥♥♥ Snuff snuff ♥♥♥ —Haa… ♥♥♥ Snuff snuff ♥♥♥ Sniff sniff ♥♥♥ —Ngh… ♥♥♥ Haa… ♥♥♥ Nn… Snuff snuff ♥♥♥ Sniff sniff ♥♥♥”

“Y-Yuu—!?”

She sniffs my penis, sighs in ecstasy, and immediately sniffs again.

Her shapely hips sway seductively beyond her head.

“—Nngh! ♥♥♥♥”

“!?”

Then, reaching one hand to her own crotch, she seems to start something.

“Yuu! The smell—stop with the smell—!”

“Sniff sniff ♥♥♥ Snuff snuff ♥♥♥ …Ngh, haa… ♥♥♥ Snuff snuff ♥♥♥ Sniff sniff ♥♥♥ Nn… ♥♥♥ Haa… ♥♥♥ Haa… ♥♥♥ Ngh— Snuff snuff ♥♥♥ Sniff sniff ♥♥♥ Haa… ♥♥♥ Sniff sniff ♥♥♥ Snuff snuff ♥♥♥”

“Yuu! Yuu! Hey!”

My voice doesn’t reach her.

Her rationality’s brakes have completely failed.

She’s utterly consumed by arousal.

“No… more… ♥♥♥ Snuff snuff ♥♥♥ Haa… ♥♥♥ I can’t… Sniff sniff ♥♥♥ I can’t hold back… ♥♥♥”

“—!?”

In this decadent, lascivious scene—her kneeling between my legs, sniffing my penis with her nose so close—

“Mwa… ♥♥♥”

She brings her open mouth closer to my penis—

“Haa, mu… ♥♥♥”

“Ugh—!?!?!?”

An unknown pleasure, like an electric current, surges through my lower half.