While Taking Care of My Shut-In Little Sister, I Somehow Ended Up Ejaculating Inside a Beautiful Girl - Chapter 38: Morning: A Peace Where No Underwear Is Put Up for Sale

Chapter 38: Morning: A Peace Where No Underwear Is Put Up for Sale

Monday morning.

The first weekday since Yuu and I went from fake lovers to real ones.

But in the early morning, it’s hard to feel the difference.

I get ready as usual and step out the front door.

As always, the moment I lock the door, I sense someone behind me.

“Yo! ♥”

I turn to see a girl with a bright, happy smile, lightly raising her hand, standing there cutely.

“Morning.”

“Morning! ♥”

It’s Yuu Onodera.

My childhood friend, neighbor, lifelong bond.

—And now, my girlfriend.

Her big, bright eyes with long lashes, perfect nose, cherry lips, and glossy hair—she’s undeniably stunning, polished to perfection. Yet, she’s not arrogant about her looks, friendly with everyone, excels in studies and sports—a true all-star.

Her long, black hair, now looking dark brown in the morning sun, gives off a warm vibe with its slightly lighter pigment.

Her old trademark was tying it into a single braid over her left shoulder.

Now—since Saturday evening, for some reason—she’s let it down into a straight, long style.

She’s kept it that way since, so maybe she’ll stick with it for a while.

I haven’t asked why—partly because there’s fun in not knowing, so I’m leaving it alone.

“What’s up? ♥ Staring like that… ♥”

“Your old style was great, but this one suits you too.”

“—Hehe! ♥ Thanks! ♥”

She pulls a thin strand of her long hair forward, playing with it. My intense staring must’ve made even her shy.

She glances at me now and then.

“…Not gonna touch it?”

“Can I?”

It’s an invitation to touch her hair, like she wants me to.

“You’re my boyfriend, Ren-chan! ♥ You don’t need permission! ♥”

“That’s, uh… thanks, I guess…?”

“Hehehe! ♥”

Touching someone’s hair usually requires permission, but her saying it’s fine feels like proof she accepts me—a pretty high-level show of affection.

…I’m not a hair fetishist, not at all.

But I do like how Yuu’s hair feels.

With year-round permission granted, I reach out, running a small amount of her silky hair through my palm.

“—Mmm! ♥”

My fingers brush her neck as I touch her hair. She lets out a soft, sensual sound and tilts her head away, exposing her slender, white neck.

It’s the opposite of asking for a head pat, but the vibe’s similar. Like she’s begging me to touch her neck and make her feel something—kinda erotic.

It’s morning, we’re walking to school, and I’m already getting worked up.

“…”

My rationality slightly loses to impure instincts.

While touching her hair, I stroke her neck with the back of my fingers.

“—Nnn! ♥♥”

Her body trembles erotically.

“—H-Hey! ♥ That’s too erotic… ♥”

Each time my fingers graze her neck, she shudders repeatedly.

Too erotic.

It’s so erotic, I can’t help but keep going mindlessly.

Soon, even the breeze from touching her hair makes her react.

Walking, she shudders hard and stops in place.

I naturally stop too, matching her.

“W-Wait… Ren-chan… ♥ I’m in trouble… ♥”

“…Huh?”

Seeing her state snaps me back to reality, and I hurriedly stop.

“That’s enough. I’ve enjoyed your hair plenty.”

“Eh~? ♥ You can touch more! ♥”

“No, no, really, that’s enough. Thanks, Yuu.”

“You’re welcome! ♥”

Yuu’s smile turns sloppy, her voice soft and melty.

“♥ ♥ ♥ ♥”

“Hey, Yuu…?”

Her breathing’s turned shallow, like huff, huff.

Her gaze shifts to something dangerous.

Deep, abyssal black eyes, burning with lust from the depths, almost like heart-shaped pupils—a dangerous look.

No one’s around, but in the middle of the street, my girlfriend…

She’s aroused…!?

Something similar happened on the way back from our date (Saturday, when we crossed a line), so Yuu’s got a wild side.

…But during the morning commute to school? That’s bad! I get why guys get horny, but do girls too? And like this…?

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

“Your switch flipped—”

I gave in to a bit of lust, stroking her neck too much, triggering her erotic reactions.

I turned her on…!

“—! That’s it, that’s what happened—!”

I didn’t realize it after the date, but now it clicks.

My acting on instinct or raw emotions might be what triggers this side of her.

—In other words.

Her arousal switch might be my fault.

“Ren-chan! ♥ Ren-chan! ♥ Ren-chan! ♥ Ren-chan! ♥”

Yuu looks up at me, wrapping her arms around my neck.

Her bag drops to the ground with a thud.

“Ren-chan! ♥ Ren-chan! ♥ Ren-chan! ♥ Ren-chan! ♥ Ren-chan! ♥”

“Yuu! My bad! I messed up! It’s morning! We’re on our way to school!”

“Ren-chan! ♥ Ren-chan! ♥ Ren-chan! ♥ Ren-chan! ♥ Ren-chan! ♥”

“Look, we’ve got school! If we get carried away here, we’ll be late!”

“Ren-chan! ♥ Ren-chan! ♥ Ren-chan! ♥ Ren-chan! ♥ Ren-chan! ♥”

“Hey, Yuu—”

Too late. I screwed up, and now it’s a mess.

“—Mmph!?”

“Mmmchu~~~ ♥♥♥”

Like a zombie, she wraps her arms around my neck, stealing my lips as if devouring me.

“Mmph—Yuu! School—mm!”

“Mmh ♥ Smack ♥—Mwah ♥ Haa ♥—Nnn ♥—Mmm ♥ Mwah ♥—”

Praying for her sanity to return, I pick up her dropped bag and drag her to an alley to avoid any passersby.

Kissing, swapping saliva, pulling off this wild stunt.

What am I doing…?

It took my desperate calls, a long, heated kiss, and some time for Yuu to snap out of it.

That time also included calming down my own urges.

…Honestly, the word “oral” crossed my mind repeatedly. Yuu seems like she’d be willing—eager, even—to go further if I asked.

Semen has a distinct smell.

Even a faint whiff on clothes or body odor during a morning commute would raise eyebrows. My urges and I had to hold back.

*

“Phew… that was rough…”

“S-Sorry, Ren-chan…!”

“Nah, I messed up too, so don’t apologize.”

Walking to school with a now-sane Yuu.

Luckily, we didn’t lose much time, so no worries about being late.

“Y-Yeah, you didn’t have to touch me that sexily… ♥”

“That’s—I mean, my bad, really. I won’t do it again.”

“You won’t do it anymore!?”

“You want me to?”

“You shouldn’t, but I want you to!”

“What am I supposed to do…?”

Her contradictory demand makes sense—do it, but pick the right time and place.

Damn… I was reckless.

Risky moves like that in public are a no-go.

Feeling awkward, we avoid eye contact.

To break the tension, I change the topic.

“Oh, about your bag…”

“—Huh?”

Yuu follows my gaze to her bag.

“You put the keychain on it.”

“Y-Yeah! ♥ It’s a memory of our date! ♥”

A small dolphin keychain from the aquarium hangs on her bag.

Not too big, modeled after a bottlenose dolphin in a calm dark blue, subtle on its own.

It’d only stand out next to my bag, with the same keychain.

Others at school might have it, but for us—known as a couple—it’s no coincidence.

Both of us carry this memory on our bags.

“You put yours on too, Ren-chan! ♥”

“Kinda felt like it.”

“Right! ♥ You just had to, for our shared memory! ♥”

“…”

Her embarrassing phrasing makes me flush as we start walking.

I need to be careful, or we’ll repeat earlier.

Still, I want to respond to her joy over something small like this.

So, I take her hand.

“—!? ♥”

Yuu’s face flushes red after a moment of surprise, and she looks down shyly.

…This throws me off. Her sudden meekness makes me feel ticklish, almost embarrassed.

It’s a different kind of trouble compared to earlier.

But I don’t feel like breaking this mood.

We continue walking to school, hand in hand, in a comfortable silence.

*

As Yuu and I walk to school, holding hands in a pleasant quiet, a figure suddenly steps out from behind a utility pole in an alley.

“Morning~ Ren-kun, Yuu-chan.”

…Phew. It’s a familiar blonde troublemaker, not some random creep.

“You two are as hot as ever today~☆”

Swaying her dyed blonde two-side-up hair, the girl flashes a sly, suggestive grin.

“Morning.”

“…Morning, Tsuki-chan.”

Startled by her usual dramatic entrance at the same spot, we exchange greetings.

Waiting to ambush us on our way to school is, of course, Yakko Tsukimi.

The bold, sharp-eyed beauty often shows this cheeky grin to close friends.

“Oops, am I interrupting?~☆”

“You are!”

Yuu snaps back instantly.

“Ehehe~☆”

“…”

Yakko playfully taps her head, striking a teasing “tehepero” pose that’s perfect for annoying other girls.

As expected, Yuu glares at her, shadows darkening her face, her eyes narrowing with clear hostility.

Their expressions couldn’t be more opposite.

Like water and oil.

Honestly, it’s a mystery how these two have maintained any kind of friendship.

“Scary~ Yuu-chan. I’m not even trying to get in your way!~☆”

“Liar.”

Sparks fly as they trade merciless jabs from the get-go.

One’s all smiles, the other dead serious.

Yuu, still holding my hand, presses closer, practically linking arms.

“You get it, right? Ren-chan’s my boyfriend now.”

“I know, I know~ I’m not interrupting. Just wanna walk to school together. That’s cool, right?~☆”

“No way. Obviously not.”

Talk about no room for negotiation. Like water and oil, Yuu’s completely shutting Yakko out.

“Aww, come on! Grant my lonely little wish!”

“Absolutely not.”

“You’d say that, wouldn’t you, Yuu-chan~”

“Since you know—”

Still, Yakko doesn’t seem fazed by Yuu’s attitude.

“—Oh, Ren-kun!”

Her attention shifts instantly.

“Tsuki-chan, just go already—!”

“Ren-kun, what’s that?~”

“Huh…?”

Ignoring Yuu, Yakko points at… my neck?

I look down, but obviously, I can’t see my own neck.

“Hang on, I’ll lend you a mirror.”

Yakko rummages through her bag and, in seconds, pulls out a round, foldable compact mirror, handing it to me.

“—N-No way!?”

“Thanks…?”

Glancing at Yuu, who’s radiating sudden tension, I take the mirror from Yakko.

I could just use my phone’s camera, but Yakko’s so quick I accept it without thinking.

…This compact mirror, shaped like a small, thin dorayaki, is sleek and chic, all black with a mature vibe.

But up close, it sparkles subtly with glitter. Kinda cute for Yakko.

Opening it reveals a regular mirror on the base and a magnifying one on the lid. My deadpan face stares back, but what catches my eye is the fun part—the mirror’s edge, decorated with tiny, colorful, shimmering rhinestones.

Kinda gyaru-esque.

…I got caught up staring at it. From the outside, it might look like I’m admiring my own face. No way that’s true, and I’d die of shame if anyone thought so, so I quickly check for the issue.

“Nothing… weird. My neck looks fine—”

“Your jaw. Under your earlobe, your collarbone. Look closely.”

“Collarbone…?”

Following Yakko’s advice, I use the magnifying mirror, pulling my uniform collar open to check.

…Oh.

There’s a slight redness…?

Faint red spots in a few places.

They’re subtle, not obvious rashes or dramatic bruises.

How’d she spot these with the naked eye?

“What’s this… bug bites?”

I say it, but I don’t really think so.

It’s not like I believe it myself.

“Maybe mites or something.”

That’s a reasonable guess. I didn’t notice till now, so there’s no itch or anything.

“R-Ren-cha—”

“Mites, huh—pfft, maybe a big mite was lurking~♪ Be careful!~☆”

“—!?”

Yakko grins slyly at Yuu.

Yuu, receiving that grin, tenses slightly, clearly shaken inside.

Her grip on my arm tightens a bit.

Whoa, even through her uniform and bra, her chest’s warmth and softness—wait, not now.

“…Tsuki-chan. I want to walk to school alone with Ren-chan today. Don’t. Interrupt.”

“I said I’m not interrupting!~☆”

“Liar.”

“Not lying!~☆”

“…”

“Hey, Yuu…?”

This is bad.

Yuu’s gaze and attitude are hitting a dangerous level.

Her shadowed face glares up at Yakko, her hostility morphing into something like murderous intent, the tension spiking.

Like a bear defending its territory, she stares Yakko down, clinging to my arm like a koala gripping a tree.

Her posture’s cute, but there’s something dark swirling inside her. I need to stop this before it gets worse.

Yuu’s jealousy has been intense lately, and I need to handle it carefully or face the consequences.

Plus, it’s already a tight morning schedule. After one hiccup, another one now would be far from ideal.

“Well, I get your warning, Yakko-chan.”

““—!””

I speak calmly to diffuse the tension, drawing their attention.

“You’re right, I should probably change my bedding soon. Thanks for the mirror and the heads-up, it helped.”

“—Huh?”

“What’s up, Yakko-chan?”

“Nothing… just…”

“Cool.”

I hand the mirror back, but Yakko stares at me, a bit stunned.

Yakko’s attitude is like she was expecting some kind of reaction but got brushed off instead.

“…”

Even as I start walking, pulling Yuu along, Yakko lingers in that dazed state for a bit.

“What’s up? You coming, Yakko-chan? You joined us to walk to school, right?”

“—Huh…? Oh, yeah, that’s right—”

Yakko seems lost in thought for a moment but hurriedly catches up.

“What’s with you too, Yuu?”

“—Huh?”

I notice Yuu, still clinging to my arm, staring at me with a blank expression.

Her moist black eyes tremble with unease, fixed on me.

“We’ve wasted enough time. Might need to pick up the pace.”

“Oh, y-yeah…”

What’s with both of them? I mutter playfully and start walking.

“Ren-kun…?”

“Ren-chan…”

I had a great sleep and woke up to a pleasant morning.

Finally, a day without worrying about underwear being sold.

My first commute as an official couple with my precious girlfriend.

I’m gonna savor this refreshing morning and soak in the good vibes.

*

…!

The moment we step onto school grounds, people who know Yuu seem to murmur and stir.

Even after changing shoes at the entrance and entering the building, curious stares follow.

Is Yuu’s new hairstyle that big a deal? Sure, it’s part of it.

But the real reason is probably how weird we look.

Yuu and I are arm-in-arm, pressed close.

On my other side, Yakko watches us with an amused grin.

To onlookers, it’s gotta look like something’s up—what’s with these three?

Most just whisper and observe from a distance. Since Yuu and I dating is public knowledge, the reactions aren’t too intense.

But as we climb to the first-year floor (third floor) and head to our classrooms—

“Hey, you three!”

“““?”””

A voice stops us up close, and we turn.

A girl stands there, a hint of nervousness on her face as she stares at us.

“Indecent behavior on school grounds is punishable! I’ll have to take action!”

Her long hair is tied back in a gorgeous ponytail—not like Masami’s messy one—wearing an armband, she’s a striking beauty with sharp features.

I don’t know her name. But her armband says “Discipline Committee.” My interest fades instantly.

“Indecent behavior? Us…?”

““…””

Yuu, Yakko, and I exchange glances.

We tilt our heads slightly, signaling we’re clueless.

“You’re with the discipline committee? Sorry, but we’re not doing anything indecent.”

“Y-You’re linking arms! Undo it immediately!”

“Oh, that’s what you mean.”

I respond calmly to the slightly flustered committee girl, making eye contact with Yuu.

Yuu pouts for a split second, clearly annoyed, then—

“Morning! Thanks for your hard work!”

She cleanly lets go of my arm and greets the committee girl.

“No impure interactions between genders!”

“We’re not, but got it~”

Yuu smiles, slightly overwhelming the committee girl.

“What about outside school grounds? Is indecent behavior okay then?~”

“Wha—!?”

Yakko’s unnecessary comment makes the girl’s face turn beet red.

“Let’s go, Ren-chan.”

“Yeah.”

“Wait up, you two!~”

“Hey, you guys—!”

Yuu and Yakko were shaken up on the way to school, but now they’re calm.

Yuu, though, hasn’t let go of my arm since we entered the school—until now.

I don’t know her exact motive for being so clingy, but she probably doesn’t want more attention.

“We’re not done—”

“Sorry, we’re in a hurry!”

“Discipline committee’s got it rough, huh?”

“Yakko-chan, that kind of talk can rub people the wrong way, so watch it.”

“Haha!~☆ Ren-kun’s scolding me!~☆”

We slip away from the committee girl and head to our classrooms.

“Hey, Hoshimiya! What’s the deal? Weren’t you all about Onodera!?”

“Hoshimiya, don’t tell me you’re actually two-timing—”

“Give me a break.”

Here come the “Machi-Masu” duo.

As I sit at my desk, I’m greeted by Machida, the long-haired baseball club guy, and Masunaga, the buzz-cut table tennis club guy.

“I’ve said it before—Yakko-chan’s nothing like that. Just Yuu’s friend.”

“But Hoshimiya, didn’t you meet up with Mizuno from Class C last week?”

“Where’d you hear that?”

“Gah, so it’s true!?”

Machida and Masunaga clutch their heads, overacting their distress.

“The triple-timing president!”

“Hoshimiya’s triple standard!”

“You said something like that before. Stop adding to it. And Mizuno? No way. She’s got nothing to do with me—”

Mizuno’s clearly got her own romance going on elsewhere, so I firmly deny it to avoid any trouble for her, adding just enough to clarify without messing with her love life.

““Introduce us to someone!””

“That’s your real motive, huh?”

The two spill their true feelings, and I feel a twinge of pity for my honest friends.

“No middle school girl friends?”

Not that I care, but I ask.

“I’ve got some.”

““Oh?””

Machida (the long-haired baseball guy) gives a surprising answer. Masunaga and I urge him on, but—

“They’re at another school.”

““Oh…””

We get it instantly.

“And they already got boyfriends.”

““Oof…””

Harsh reality. Too real.

“What about you, Masunaga?”

“Me?”

When I toss the question his way, Masunaga makes a serious face, pausing dramatically.

“…High school’s my chance. This is it.”

““Got it.””

He points heavily at his head—his buzz-cut. Shaving it was his way of reinventing himself, a high school glow-up.

“Back in middle school, table tennis club was peak non-moe.”

“Non-moe…? Why? Does being in table tennis make you unpopular?”

“Hey, Hoshimiya!”

“Huh?”

When I ask, Machida oddly cuts me off, so I glance between them.

“…Did I say something wrong? Sorry, I only did a club briefly in middle school before quitting, so I’m clueless about club stuff. If I offended you, my bad.”

“Oh, that’s it? Can’t be helped then.”

Machida, playing with his long hair, looks relieved.

“It’s fine. It’s true. Not every table tennis club’s like that, of course.”

“Hmph…”

“The table tennis club had a lot of otaku, all scrawny and wearing glasses.”

“So that’s why even you weren’t popular, Masunaga…?”

“Hoshimiya…”

“…?”

Machida looks at me like I’m hopeless.

“But, like, table tennis—”

I don’t know much about the club, but I know about the sport.

It’s intense, demanding full-body effort. Footwork’s key, and you need stamina to keep moving. The light ball means you play in a sealed gym to minimize wind. The racket’s angle, the force of your hits, and returning shots require precision—it’s undeniably tough. A flat table, specific rackets, and a windless indoor setting make it a highly controlled, almost futuristic sport.

I tell them I don’t get why table tennis is mocked.

“…”

Machida and Masunaga exchange glances, smirking bitterly.

“…You’re a weird one, Hoshimiya.”

“Totally. But kinda likable for it.”

“Am I being made fun of?”

““No way.””

They burst out laughing, unable to hold it in, then look at me.

“Sports aren’t just about the game. They come with an image tied to the people involved.”

“Image?”

“Like clubs with hot guys, or ones with super dedicated members or coaches, or ones the school favors.”

“…I get it.”

I’m forced to rethink my perspective. Why didn’t I consider this?

So, clubs have their own kind of caste system.

It’s not a reliable measure of human worth, but still.

Which club’s at the top, and which is at the bottom? How’s that decided?

If it’s just performance, having experienced athletes from a young age would matter. So, at a prestigious school, the most famous club might be the top of the school’s caste. But what if that club has a bad year? Do they drop to the bottom? It’s a weird system…

“But Masunaga, you didn’t quit in high school, right? You’re still in table tennis.”

“Yeah.”

Masunaga nods, a bit shy, at Machida’s comment.

It’s not like he quit because he wasn’t popular.

“I’m gonna play table tennis and get a girlfriend! Live that youthful life! That’s my goal!”

““Go for it!””

Masunaga’s beaming expression is dazzling.

Club life and romance, huh…

It feels so far from my reality.

Clubs require family support—permission for trips, money for bentos or expenses, emergency contacts for safety. It’s a luxury I can’t afford.

“I’m not losing either, Masunaga! I’ll play baseball and get a girlfriend! Within these three years! First, I’ll get close to that cute manager, Mitsui-san!”

““Hell yeah!””

Honestly, they’re both dazzling.

From the classroom entrance behind them, our tired-looking homeroom teacher walks in.