Chapter 13

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Translator: penny

Chapter: 13

Chapter Title: My Dick's Aching Because of My Little Sister (Black-Haired Blue-Eyes, I-Cup S-Rank Beauty) – This is Serious

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"No way."

Those were the phrases Stella muttered to herself after returning to her room.

There were no other words to describe the emotions she was feeling right now or the events she'd just gone through.

Other than sighing out her bewilderment in the moment, that is.

For a long time, her oppa had been a criminal in Stella's eyes.

At first, when she heard she was getting an oppa, Stella had been over the moon, jumping for joy.

Her black history was the time she bounced around the house telling Mom that when Oppa came, they'd play all sorts of games together.

But the oppa who actually got adopted and came home...

He didn't look like Kim Sanghyeok did now, but she distinctly remembered finding him repulsive back then.

That didn't ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠mean she was ready to forgive the now "ideal oppa" Kim Sanghyeok, though.

To be clear, this shift in emotions had nothing to do with his change in appearance.

No matter what he looked like, she had no intention of letting him stay in this house with just her and Serena.

She was the absolute judge with full authority.

Oppa was the criminal.

That was her stance when she entered the room, but when she came to, she was rolling around on the floor.

'???????????????'

Stella's mind was filled with question marks.

No, is this guy actually insane!?

Not content with laying hands on an A-rank hunter like her, he even declared he'd look at her panties whenever he wanted!?

She fought back with all her might, but she realized she couldn't win in a contest of strength. That alone pissed her off.

'This kind of guy calls himself a man... Argh...!! Why is he so damn strong!'

Pinned down, she couldn't do a thing.

She kept resisting, but she just ended up comically getting choked out...

Or rolling around on the floor every which way.

When she should have been on her knees begging for mercy...!

But.

Stella was starting to feel strangely refreshed inside.

"I'll make sure you don't suffocate."

His words about wanting to see her underwear somehow unraveled the lump of tangled emotions in her chest.

Until now, what had tormented Stella could be seen as a lump of "male disgust."

Lurking in the shadows, treating her as a sexual object, secretly installing cameras in the bathroom,

Or snapping pics of her panties to save them...

At first, that kind of behavior from oppa terrified her, made him seem like a monster. That inexplicable fear expanded into a general hatred of "men."

She'd always been taught that a woman's body was precious, and it really was.

So seeing oppa leering at her "sex" with filthy eyes made him a horrific monster in her mind.

Kim Sanghyeok, locked in the prison his little sister built, a prisoner worse than murder, the epitome of disgust.

This disgust had no end.

He might attack her while she slept.

He might film her using the bathroom.

Who knew what he'd do to her underwear.

He might drug her food for something nefarious.

Every time Stella looked at a "man," she saw him that way, and oppa was the perfect specimen.

Once she branded him a sleazy sex offender, every move he made was already repulsive to her.

In the end, she came to hate and despise Kim Sanghyeok and all men to an extreme degree.

But today.

She rolled around with that very Kim Sanghyeok like wild animals.

There was no time to fuss over gender roles like woman or man.

If she didn't break this chokehold, she'd die!!

A punch to the gut hurts!!

Getting tossed around by those primal forces, she stopped caring about panties or whatever, man or woman be damned.

Strangely enough, that's how it felt.

This moron would just say "Hey, show me your panties" if he wanted to see them anyway.

And Stella would reply the same as always. "What the hell? You pervert oppa."

...She wouldn't actually call him a pervert lest the choke come back.

Kim Sanghyeok had opened his true heart, and Stella knew it wasn't an act.

「Belief that this moron won't secretly take photos anymore」

Once that half-belief took root...

She realized half the fears she'd built were fabricated in her own mind.

That guy wasn't the type to drug them or install hidden cams to blackmail her and Serena.

He was a total idiot beyond that.

She wasn't sure if this counted as "trust,"

But her view of oppa as a person had definitely shifted.

Strangely, the weight on her heart had almost vanished.

Other than the fact that this beyond-stupid oppa had barged into her life.

"First time we've tussled like this physically."

Stella tapped away, editing Oppa’s profile that read "moron."

To 「Kim Sanghyeok」.

The dinner menu was pasta made by Serena herself.

"Eat up, oppa."

"Thanks for the meal."

Delicious. The noodles were perfectly al dente, seasoned just to my taste.

Serena's great at cooking too. Impressive.

The pan still warm, garlic scent wafting up.

"Made some gambas too. And soft bread to go with it—perfect together."

"Mm-hmm..."

Mouth full, I just nod vigorously.

"Oppa, ah~."

"Ah~."

Munch munch...

I eagerly accept what Serena feeds me.

Stella watched from the side, looking disgusted.

"What the hell? Why do you talk like that?"

"Stella, ah~."

"...When did you two get so ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠chummy?"

Grumbling unhappily, but Stella still accepts what Serena offers.

Stuffing her cheeks like a hamster, chewing away as she eyes Serena.

"Mm, this morning?"

Cough! Cough!

Almost spat out my food.

"Oppa, eat slower."

The black-haired, blue-eyed little sister offers a glass of water with a bright smile.

...In some ways, scarier than Stella.

Maybe because I share a bigger secret with her than just peeking at panties.

"...Something's fishy."

Cold sweat trickled down my spine.

"Stella opened up to oppa today too, right?"

"Opened up? Who to whom?"

"We're eating together like this."

"That's..."

Stella glares at me sharply.

"He finally came out of his room instead of holing up. That's the only difference."

Me? Oh.

The hikikomori role must've been old Sanghyeok's.

Stella's always been bold, so she ate with Serena.

From Stella's view, new Sanghyeok me was the intruder crashing their happy family meals.

"No reason to hole up anymore. If I wanna see Stella's panties, I can just ask."

"Like I'd show you?!"

"Saw 'em already today."

Flinch!

Stella clamps her thighs tight, glaring at me furiously.

"No fighting, you two. Isn't it nice eating together like this?"

"Sure. Totally."

"Plus, if oppa wants, little sis can show her panties, right~."

"No way."

"What're you saying? You crazy? Serena."

Perfectly in sync with Stella.

Serena claps, delighted.

"Whoa! Your timing's perfect!"

"......"

"......"

Even shutting up at the same time.

Normal to react like Stella if oppa asks to see panties.

If you think she'd actually show them... that's scarier than asking.

'Cause she might really do it.

"Oh, oppa. Lotsa laundry. Want me to wash it all?"

"Nah, tossing it. Even hydrogen peroxide and baking soda couldn't fix it."

What the hell did old me stain them with? The discoloration wouldn't budge.

Total mystery.

"What about the uniform? That'd be a waste."

"Doesn't fit. I... grew a bit overnight."

"Hmm... Lemme try fixing it!"

"Buying new's faster. How much for one?"

"Around 900 coins?"

......

Eighteen goblin packs to afford that?

Check coins on my student ID.

'Not looking good.'

If dress code violations pile up while grinding coins, won't they drag me to the student council again?

I'm not pardoned. Just on probation, extenuating circumstances considered.

Mess up in the meantime, and it's aggravated punishment. Even a kid could figure that out.

"Please, Serena."

"Leave it to me, oppa! I'll make it perfect."

"Heading up first."

Scrape.

Stella dumps only her dishes in the sink and heads upstairs.

We watch her back intently.

"Think we can make peace?"

"Stella hates being lonely. Keep shaking her up, oppa, and she'll cave quick."

"I HEAR YOU!!"

Cave quick, huh.

Hope so. Want a peaceful home...

Nothing better if my pretty little sisters follow my lead.

A bit later.

"Oppa. Can we sleep together?"

'This is too compliant.'

Bedtime.

Serena twists at my door, making my head spin.

...My little sis is a hexagon onahole? Didn't wanna know that.

Appearing in a sheer shirt with black lace undies makes it impossible not to stare.

Serena clutches a pillow, looking up at me with dewy eyes.

This setup feels super contrived, or is it just me?

This is blatant seduction.

Or not?

Is my brain just rotten?

'...Do close siblings sleep together sometimes?'

Think straight, Kim Sanghyeok.

But I'm an only child, no clue. Seriously.

Recall Chuseok cousin sleepovers, boys and girls mixed.

No help.

Definitely not this sexual vibe back then.

Cousins looked like monkey-human hybrids, so piling up meant nothing.

...Sleeping with Serena, just thinking about it.

"Oppa... Scared to sleep alone."

Gulp.

Fresh from shower, her skin looks moist and soft.

In the dimly lit hall, Serena's purple eyes held a mystical allure, glowing faintly.

"You're all grown up. Still scared to sleep alone?"

"Yeah."

"...Come in."

Once permitted, Serena switches to a mischievous grin and leaps into my arms.

Squeeze!

"Ehehe!"

"You...!"

"Scared to sleep alone? Am I a kid? Oppa?"

It's 'cause you're a full-grown adult that it's a problem!

Gasp. No bra?

Serena presses and rubs her breasts against me till I get hard uncontrollably.

Confirming her appeal, she smiles seductively.

Try to shake her off, but she clings tight.

Rubbing her tits to tempt me.

"Mmm~ Oppa. Why keep backing away."

"S-Stella might see..."

"Hehe. That'd be real trouble. If Stella finds out you and I already had sex."

"...W-What sex!"

Not sex!

"You said it was a mistake too."

"Oppa, dodging responsibility?"

"No. It was a mistake, end of story! For your future husband's sake too."

Serena stops dead, looking up at me.

"...You already know, right?"

"Know wha..."

"The feel of you buried to the hilt, filling me... Your reaction when I squeezed tight, the union when we became one."

"......"

"That moment... I knew I had to be your woman... Squeezing your baby room, making you swear, oppa..."

Her every word dizzies me.

Uh, really?

Irreversible?

Breasts grinding, IQ dropping.

"Am I really still a virgin, oppa?"

"...Ngh."

"Didn't you deflower me ages ago...?"

"No."

Yeah.

Force that thought or it's dangerous.

For our relationship.

"But..."

I grab her slender shoulders firmly.

"O-Oppa?"

"If you don't want it to be a mistake, I'll take responsibility properly."

If that's how Serena feels.

I'll...

"Be okay with me as your boyfriend? Oppa as your man?"

"......"

Serena looks dazed, like she's drunk.

"...Let's tell Stella. What happened between us."

My sincerity hits; she snaps out of it, startled.

"N-No!! Oppa... I was just teasing 'cause it's fun seeing you fluster, y'know..."

"Tease someone else! Wanna get punished for real?"

Phew...

Relief inside.

Still good as oppa-sis.

"Sorry. Didn't mean to act like I had dirt on you..."

"It was... a mistake, right?"

"Yeah. Anyone'd call it an accident. No guilt, oppa."

Right...

Tumbled, but virgin loss? Ridiculous...

Humanely, no count.

"...That stuff earlier was teasing too, right?"

"...What stuff?"

"The hilt-deep thing..."

Serena just giggles.

...Must be teasing.

My handsome dick doesn't have some evil "irresistible after one taste" effect.

Right? Goddess?

Serena's future hubby, she's pure in body and soul.

Keep it that way. Thinking I ruined her life gives me chills.

"Now we sleep together, right? Oppa."

"...Huh? Do we?"

"Yeah. All sorted. Just sleep with trusty oppa!"

"...???"

Yeah? This okay?

Taken by the hand to bed.

Serena looks happy, so fine...?

Lights out, dark room.

Feel her skin, body heat, entwined.

My erection touches her, but she doesn't mind—instead burrows closer.

"Glad you're my oppa."

"What, we've only known ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠each other..."

"We've known for years."

Oh right. From Serena's view.

"But even all those years combined~~ don't beat today’s oppa."

"......"

Thought nothing hotter than Stella's 「Die, oppa」.

"Love you, oppa."

Brain melting now.

Long entangled, I brush her bangs, ask slowly.

"...You mean as oppa, right?"

Face heats up.

Why ask sis something like this.

If as a man, then what? Jump her?

Serena sleeps soundly in my arms, at ease.

'......'

Sigh...

'Stuck with oppa role.'

Serena's just thrilled to have a doting oppa.

If serious move, she'd react like when I grabbed her shoulders.

So...

My job as a man.

Not touch her, even if she leaves the Pacific Ocean's worth of opening.

'...Hardest thing I did today.'

My dick was aching bad.