Chapter 13: My Little Sister (Black Hair, Purple Eyes, I-Cup, S-Rank Beauty) Is Making Me So Hard, I’m in Big Trouble [R-18]

*

“Unbelievable.”

Unbelievable, 12 times. What the hell, 17 times. Should I just kill him?, 8 times. This is ridiculous, 7 times. Crazy bastard, 5 times. What is this?, 8 times.

This was the tally of words Stella had muttered to herself after returning to her room.

She had no other way to describe the emotions she was feeling or what she had just experienced.

All she could do was spit out her bewilderment as it came, like a series of sighs.

For a long time, her brother had been a sinner in Stella’s eyes.

Stella, who had been overjoyed when she first heard she was getting an older brother.

The days she’d spent bouncing around, telling her mom all the things she would do and play with her orabeoni when he arrived—that was now Stella’s dark history.

The brother who had actually been adopted and come to their home…

It was a far cry from the Kim Sang-hyeok of today, but she remembered him being repulsive back then.

That wasn’t to say she felt any inclination to forgive Kim Sang-hyeok just because he now had the face of an ‘ideal older brother.’

To be clear, this change in her feelings had nothing to do with the change in her brother’s appearance.

She’d had no intention of letting either version of him set foot in the home she shared with Serena.

I am the judge, vested with absolute authority.

My brother is the sinner.

She had entered his room with that exact mindset, but when she came to her senses, she was rolling around on the floor.

‘???????????????’

Stella’s mind was filled with question marks.

No, has this bastard really lost his mind!?

It wasn’t enough that he used physical force on her, an A-rank hunter, but he also declared he would look at her panties whenever he wanted?

She had fought back with all her might, but she quickly realized she couldn’t win in a contest of strength. Even that was infuriating.

‘To think a bastard like this is a man… Ugh…!! Why is he so strong!’

She’d been pinned down, completely unable to do anything.

She kept resisting, of course, but it only ended with her being ridiculously choked…

Or just getting tossed around on the floor.

He was the one who should have been on his knees, begging for forgiveness…!

But.

Stella found herself feeling a growing sense of relief.

I’ll look at them without hiding.

Her brother’s words, saying he’d just ask to see her underwear if he wanted to, had a strange way of releasing a knot of pent-up emotion.

What had tormented Stella until now was, in a way, a mass of androphobia.

The way he secretly objectified her, installing cameras in the bathroom or toilet without her or Serena’s knowledge, taking pictures of their panties and saving them…

At first, her brother who did such things seemed terrifying, like a monster. That baseless fear had expanded into a simple hatred for the very existence of ‘men.’

She had always been taught that a woman’s sexuality was something precious, and in reality, it was.

So her brother, who stared at that ‘sexuality’ with filthy eyes, seemed like a hideous monster.

Kim Sang-hyeok had become a symbol of ‘disgust,’ trapped as a prisoner serving a sentence worse than murder in a jail of his little sister’s making.

This disgust was endless.

He might attack me in my sleep.

He might be filming me while I use the bathroom.

He might do something to my underwear.

He might drug my food and do something horrible.

Stella had come to see all ‘men’ through that lens, and her brother was the perfect specimen.

After branding him a perverted sex offender, his every move was already under her scrutiny.

Eventually, she came to radically hate and detest all men, including Kim Sang-hyeok.

But today.

Today, she had tumbled with that same Kim Sang-hyeok like an animal.

It was no time to be thinking about roles like ‘woman’ or ‘man.’

If I don’t break this chokehold, I’ll die!!

Getting hit in the stomach hurts!!

As she was tossed about, at the mercy of that primitive force, the issue of showing her underwear became trivial, something beyond considerations of male or female.

Strangely enough, that’s how it was.

From now on, if this idiot wanted to see her underwear, he’d just say, ‘Hey, show me your underwear.’

And Stella would reply, as always, ‘What are you talking about, you idiot brother.’

…Although she probably wouldn’t call him an ‘idiot,’ since that would get her put in a chokehold.

Kim Sang-hyeok had genuinely opened up his heart, and even Stella knew it wasn’t an act.

「A belief that this idiot won’t secretly take pictures anymore.」

After that belief, or something like it, took root…

She realized that half of the fear she had created was fabricated within her own mind.

That bastard, at the very least, wasn’t the type to drug them or install hidden cameras to blackmail her and Serena.

He was an even bigger moron than that.

She wasn’t sure if you could call this ‘trust,’ but her interpretation of the person that was her brother had changed dramatically.

Strangely, the burden on her heart was almost gone.

Except for the fact that an idiot brother, far more foolish than she could have ever imagined, had just barged into her life.

“This is the first time. Roughhousing like this.”

Stella tapped on her brother’s profile, where ‘Idiot’ was written, and revised it.

To 「Kim Sang-hyeok」.

*

Dinner was pasta made by Serena herself.

“Enjoy your meal, Oppa.”

“Thanks for the food.”

It was delicious. The doneness of the pasta and the seasoning were perfectly to my taste.

So Serena is a good cook, too. Excellent.

The familiar scent of garlic rose from the hot pan.

“I made some gambas, too. Here, I prepared some soft bread, so it’s good to eat them together.”

“Oomph, oomph…”

My mouth was already full, so I just nodded repeatedly.

“Oppa, say ah~.”

“Ah~.”

Munch, munch…

I diligently ate whatever Serena fed me.

Stella was watching from the side with a look of disgust.

“What the hell is this? And what’s with the way you’re talking?”

“Stella, you say ah~ too.”

“…When did you two get so friendly?”

Though she grumbled with displeasure, Stella still ate what Serena offered her.

Like a pair of hamsters, we both stuffed our cheeks with food and stared at Serena.

“Hmm, this morning?”

Cough! Cough!

I almost spat out everything I was eating.

“Oppa, really, you should eat slowly.”

My little sister with black hair and purple eyes handed me a glass of water, smiling brightly.

…In a way, she’s scarier than Stella.

Was it because she and I shared a secret far greater than peeking at or taking pictures of panties?

“…Something’s fishy.”

A cold sweat trickled down my spine.

“You opened up to Oppa today too, didn’t you, Stella?”

“Opened up? Who opened up to whom?”

“We’re all eating together like this, aren’t we?”

“That’s because…”

Stella shot me a glare.

“The one who was always cooped up in his room came out. That’s the only difference.”

Me? Ah, right.

The role of the hikikomori must have belonged to the old Sang-hyeok.

Stella, ever the confident one, would have always eaten with Serena.

From Stella’s perspective, I, the new Sang-hyeok, was an unwelcome guest intruding on a happy family mealtime.

“I don’t have a reason to be cooped up anymore. If I want to see Stella’s panties, I can just ask her to show me.”

“Who said I’d show you?!”

“I already saw them today.”

Flinch!

Stella squeezed her thighs together tightly and glared at me, looking mortified.

“No fighting, you two. Isn’t it nice eating together like this?”

“Of course, of course.”

“Besides, if her big brother wants to see, a little sister can show him her panties~.”

“No, she can’t.”

“What are you talking about? Are you crazy, Serena?”

My timing with Stella was perfect.

Serena clapped her hands, delighted.

“Wow! Your timing is perfect!”

“…”

“…”

We even fell silent at the same moment.

Reacting like Stella when an older brother asks to see your panties is normal.

If she was actually thinking she could show them… then it would be scary to even ask.

Because it felt like she’d actually do it.

“Oh, Oppa. There’s a lot of laundry. Are you going to wash it all?”

“No, I’m throwing it out. Even with the power of hydrogen peroxide and baking soda, it was a lost cause.”

What the hell did he get on them that the stains wouldn’t come out?

It was a total mystery.

“What about your uniform? The uniform is too good to waste.”

“It doesn’t fit. I… grew a bit taller overnight.”

“Hmm… I’ll try to alter it!”

“It’d be faster to just buy a new one. How much is a uniform?”

“About 900 coins?”

…

So I’d have to kill eighteen hordes of goblins to afford one?

I checked the number of coins deposited in my student ID.

[Kim Sang-hyeok]
[Coins: 54]

This isn’t going to work.

If I rack up dress code violations while trying to earn money, won’t I just get summoned to the student council office again?

My crimes hadn’t been pardoned. The sentence was merely suspended, my circumstances taken into account.

Even a child could figure out that causing trouble during this period would result in a harsher punishment.

“I’m counting on you, Serena.”

“Leave it to me, Oppa! I’ll make it look seamless.”

“I’m heading up first.”

Scrape.

Stella put only her own plate in the sink and went upstairs.

We followed her back with our eyes.

“So? Think there’s a chance for reconciliation?”

“Stella gets lonely easily. If you keep shaking her up, Oppa, she’ll come around soon.”

“I can hear you!!”

Come around soon, huh.

I hope so. I just want peace in the house…

There’s nothing better than having my pretty little sisters follow my lead.

A moment later.

“Oppa. Can’t we sleep together?”

This feels like she’s following my lead a little too well.

Bedtime.

My vision swam as I looked at Serena, who was twisting her body shyly at my door.

[「Onahole Aptitude Analysis」]
[Serena]
[Conquest Difficulty – A (strikethrough) None]
[Onahole Aptitude: S+ Rank]
[Prerequisite Quest – A (strikethrough) None]
[Prerequisite Quest 2 – A (strikethrough) None]
[First time is with Oppa♡]
[Underwear – Black panties with minimal coverage. Serena’s special pair for a decisive battle (she’s not wearing a bra).]
[Onahole Characteristics (★) – This little sister has an amazing body! A devilish little sister onahole boasting a perfect, voluminous body balance and a grip so tight you can never escape once you’ve had a taste.]
[An ideal little sister who loves and follows her brother dearly. She’s pretty, shy, and a model student. She won’t give herself up easily at first, making the beginning difficult, but once a fire is lit, she reveals a passionate side, unable to stop her feelings for you. A hexagonal all-rounder onahole who can play any role: girlfriend, wife, sex-friend, little sister, older sister, or mommy.]

…I really didn’t need to know that my little sister was an all-rounder onahole.

She appeared in a translucent shirt and black lace underwear, making it even harder to know where to look.

Hugging a pillow tightly, Serena looked up at me with moist eyes.

Was it just me, or did this whole production feel incredibly contrived?

This was clearly a seduction.

Or was it?

Was my brain just rotten?

‘…Do close siblings sleep together sometimes?’

Make the right call, Kim Sang-hyeok.

But I’m an only child, so I honestly have no idea.

I tried to recall memories of sleeping mixed together with my male and female cousins during holidays.

Not helpful.

I can say with certainty that the atmosphere back then was not this sexual.

My cousins looked like creatures somewhere on the borderline between monkeys and humans, so I didn’t think anything of sleeping in a pile with them.

…But the thought of sleeping with Serena.

“Oppa… I’m scared to sleep alone.”

Gulp.

Her skin, which looked like she had just washed up, seemed incredibly soft and dewy.

In the dimly lit hallway, Serena’s purple eyes glowed with a mysterious charm.

“You’re all grown up, but you’re still scared to sleep alone?”

“Yeah.”

“…Come in.”

As soon as she was granted entry, Serena’s expression switched to a playful smile as she rushed into my arms.

Squeeze!

“Ehehe!”

“You…!”

“Scared to sleep alone? Am I a child, Oppa?”

The problem is that you’re a grown adult, not a child!

Gasp. No bra?

Serena pressed her breasts against me, even rubbing them, and I got hard without any resistance.

She smiled slyly, as if confirming her own appeal.

Even when I tried to push her away, she wouldn’t budge.

Serena seduced me, grinding her breasts against me.

“Uuungh~ Oppa. Why do you keep backing away?”

“If S-Stella sees us…”

“Hehe. That would be a huge problem, wouldn’t it? If Stella found out that you and I have already had sex.”

“…Wh-What sex!”

It wasn’t sex!

“You said it was a mistake, too.”

“Oppa, are you trying to avoid responsibility?”

“That’s not it. It’s right to chalk that up as a mistake! For the sake of your future husband.”

Serena stopped dead in her tracks and looked up at me.

“…I already know.”

“Know what…”

“The feeling of you… inside me, filling me up all the way to the root… The way you reacted when I squeezed you tight, the sense of union we felt when we became one.”

“…”

“At that moment… I felt I had no choice but to become your woman… You made me promise while you were kissing my little sister’s womb…”

Every word from Serena’s lips made my head spin.

Huh? Is that right?

Is it really irreversible?

I felt my intelligence dropping as her breasts rubbed against me.

“Am I really a virgin, Oppa?”

“…K-Kuh.”

“Isn’t it that… you already took me?”

“No.”

That’s right.

I have to force myself to think that way, or else it’s dangerous.

Our relationship.

“But…”

I grabbed Serena’s slender shoulders.

“O-Oppa?”

“If you don’t want it to have been a mistake, then I’ll take responsibility properly.”

If that’s how Serena feels.

Then I…

“Is it okay if I, your Oppa, become your lover? Your boyfriend?”

“…”

Serena had a dazed look on her face, as if she were drunk.

“…Let’s go tell Stella. About what happened between us.”

As if my sincerity got through to her, Serena snapped out of her daze.

“N-No!! Oppa… It was just a joke, because it was fun to see you flustered…”

“There are some things you don’t joke about! Do you want to get a real scolding?”

Phew…

I sighed in relief internally.

It seems we’re still okay as brother and sister for now.

“I’m sorry. I didn’t mean to act like I was holding something over you…”

“It… was a mistake, right?”

“Yeah. Anyone could see that was an accident. Don’t feel guilty, Oppa.”

Right…

Losing your virginity from a fall is ridiculous…

On a human level, that has to be a no-count.

“…What you said earlier, that was a joke too, right?”

“…What did I say?”

“The thing about… all the way to the root…”

Serena just giggled.

…It must be a joke.

My handsome dick doesn’t have some evil effect like ‘any woman who tastes it once is changed forever.’

Right? Goddess?

To Serena’s future husband, I swear Serena is a virgin in mind, body, and spirit.

Please, let’s just leave it at that. I shudder to think that I might have ruined Serena’s life.

“So we can sleep together now, right? Oppa.”

“…Huh? I guess so?”

“Yep. It’s all settled. All that’s left is to sleep with my dependable Oppa!”

“…???”

Huh? Is this right?

Led by Serena’s hand, I got into bed with her.

Serena looks happy, so is it okay…?

The lights were out, the room dark.

I felt Serena’s skin and body heat as we tangled together.

She didn’t seem to mind my erect penis pressing against her at all; in fact, she snuggled deeper into my arms.

“I’m glad you’re my Oppa.”

“Well, how long have you even known me…”

“I’ve known you for years.”

Ah, right. From Serena’s perspective, that was true.

“Buuut, out of all those years I’ve known you~~, I like the Oppa I saw today the most.”

“…”

I thought nothing could be more arousing than Stella’s “Just die, Oppa.”

“Oppa. I like you.”

This time, I felt my brain melting.

After we lay tangled together for a while, I brushed her bangs with my hand and asked slowly.

“…You mean you like me as a brother, right?”

My face grew hot.

Why am I asking my little sister something like this?

What would I do if she said she liked me as a man? Pounce on her right away?

Serena was already asleep in my arms, looking peaceful.

‘…’

Haaah…

We decided I’d be her ‘Oppa,’ right?

Serena is just happy to have an older brother to dote on.

If I had seriously tried to pounce on her, she would have reacted the same way she did when I grabbed her shoulders just now.

So…

My job as a man is…

To not touch Serena, even if she gives me an opening as wide as the Pacific Ocean.

‘…This is the hardest thing I’ve had to do all day.’

I was in big trouble because I was so damn hard.

---

Translated By: Meher (RaidenTL)

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