Am I Dirty...?

I claimed Oppa's lips as he lay beneath me, greedy after going so long without them — slurp, mmph, pah. My body had missed this feeling too. My pussy had already come twice.

"Haa... I'm not holding back anymore... We're going all the way today...♥"

"Ah... we can't do that."

Fuck. She actually went and did it.

From the day she ruined my CSAT, I decided I wouldn't treat my little sister... no, that little bitch, like a person anymore. Afterward she never even offered an apology, and she had the gall to keep scarfing down every meal I cooked like nothing had happened.

To get out of that house, I had to study. Ha... just think of it as reviewing the material again.

First I enrolled in a College Prep Academy instead of a retake academy. Competing against current seniors would keep me sharper, I figured — and more than that, I'd heard the atmosphere at retake academies was brutal, so even if it ran a little more expensive I went with the college prep academy.

A typical day of mine started with getting up early and putting together a simple breakfast. Dad had told me to look after that little bitch no matter what, so even when I was seething I'd swallow it and make the morning meal. Then, just to keep from running into her, I'd set the table and duck out to the convenience store for my own food.

Why was I avoiding her??

You avoid shit because it's filthy. And yeah... I was still a little scared of her, too.

After that I'd head to the library, open the notes I'd taken on yesterday's key points, and review until they were burned into my skull. Eat lunch, study some more, and the moment the clock allowed it, go straight to the academy.

Today I was in the same seat as always, getting ready for class, tidying my desk, ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠when someone tapped me on the shoulder.

"O-Oppa, hello!"

"Huh...? Oh... hey...?"

A kid I'd gotten to know recently. Last class she'd apparently dozed off and missed the notes, and since she sat right next to me I let her borrow mine without a fuss. Now every time she saw me she'd stammer like this, always punching the last syllable extra loud when she said hi. Honestly it cracked me up every time, but I held it in and said hi back.

"Okay.... Please pay attention in class!"

Then she went scampering off to a seat well away from mine — tap-tap-tap! Unlike that little bitch of a sister, she had this fresh, innocent quality that was just too cute.

Now that's a real high schooler. Wait, what was her name again...?

After class she'd come ask me about the parts she hadn't understood. Hey, the instructor's right over there...

Guess she's just a shy kid...

"Ah! Like this...? Wow~ Thank you, Oppa..!"

She was definitely sharp — picked things up fast. Maybe try focusing in class a little, though. I just smiled and nodded like it was nothing.

"Um... uh... this! Please have it...!! I picked it up on the way!!"

"Uh... you picked it up...? Thanks, I'll enjoy it~!"

Banana milk. Why would you give me something you found on the ground...

I popped the lid and downed it in one shot.

Ahhh. That's how a real man does it.

Huh..?? The kid was staring at me with her mouth hanging open.

"What?"

"Ah! It's nothing.. I'm sorry..!"

She ducked her head again.

...? What?

Looking closer, I could see the name on her uniform nametag: Yoo So-jung.

So-jung, So-jung... gotta remember that.

So-jung's bangs covered almost down to her eyelids, so you could barely see her expression, but I'd caught glimpses when the wind stirred them. If this kid just took off the glasses and trimmed those stuffy bangs a little, guys would probably be all over her.

"Going to self-study again today?? Hey... So-jung?"

"Ah...! Yes! Let's go..! Oppa..!"

It wasn't exam season yet, so the only people left in the study hall were the regulars who always showed up. I sat at a six-person table a short distance from the always-empty door, a spot that made it easy to focus. So-jung never sat next to me — always took the seat across. ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠Some kind of study routine that worked for her...?? I should try that myself sometime.

A furtive glance—!

Why does she keep looking over here...

I loved these peaceful hours without that little bitch around. Please, just let it stay like this until I can get into a dorm... I prayed to God.

Knock, knock. ...Oppa... you awake...?

Fuck. Guess God doesn't exist.

It was pretty late, so I opened the door cautiously, just in case.

"……"

"Talk to me for a minute…."

Coming to apologize now of all times...? Way too fucking late, you bitch....

I let her into the room. Wonder what shameless shit she's about to say. Fucking hell. I sat in the chair and waited.

"I got a boyfriend…"

The hell...? Wait, what...?

"...A boyfriend! I said I got one... jeez.."

"Uh.. congratulations...?"

Is this for real...? I was completely stunned by my sister's bombshell. Getting mad felt weird too. This is something you're supposed to congratulate, right...?

"So... stop avoiding me now.... I really have been reflecting a lot...."

Is this even the same little bitch... Something in my chest swel— wait, no, that's not it. Fuck! She actually reflected...?!

I was a little suspicious, but she didn't give me time to think — she went straight for the waterworks.

"Oppa keeps avoiding me...! It's been so hard... sob!"

Ha... I really am beyond saving.

"...Sigh. Fine... come here."

"...Ung."

Ung my ass. I patted her back, watching this crazy girl twitch slightly under my hand, and thought...

Fuck..!

The next day I had breakfast with my sister for the first time in ages. If our parents saw us being all awkward it would look terrible, so I figured I should at least sit through a meal. I came out a little later than her — and sure enough, there was a guy.

"Hm? A boyfriend...?"

"Ah... Oppa...!"

I was sitting there zoning out, thinking wait, it's real...?, when the guy came over, greeted me, and said he'd be in my care.

I almost actually bought that he was her boyfriend.

Why not?

Because from behind, she was looking at him with eyes that held not even a shred of affection, like he was completely pathetic, and it was painfully obvious. Clearly only the guy liked her.

I gave the poor kid a look of sympathy. Sigh. Why'd he have to fall for something like that....

"Yeah, treat her well~"

I patted his shoulder, meaning hang in there.

That little bitch must have gotten pissed at me for that, because she linked arms with him, flipped me off, and headed to school.

"Good grief... crazy bitch.."

After finishing my usual routine and class, I told So-jung that starting today I probably couldn't stay for self-study afterward. I'd decided to make dinner as a small step toward patching things up with my sister, just a little.

So-jung nodded, looking pretty disappointed.

"Okay.. Oppa..."

Hey, don't look that dejected...

Feeling guilty for no good reason, I reached up and patted her head. She looked up at me with startled eyes, sparkling like a puppy's, and it was genuinely adorable. But I had to get home, so I took my hand off this cute little creature's head and said goodbye.

"See you tomorrow...! Oppa.."

The second I got home, that little bitch told me to make dinner. Fucking hell. I even suggested maybe she could start trying to cook herself for a change, but she didn't hear a word of it. Fuck.

Then she suddenly got serious and asked if I really wouldn't care no matter what she did with other guys.

Yep, yep, yep... please just go away.

I gave her some half-assed reply about why she'd even ask something like that. And so time kept passing.

Wow~!

The guy who'd been fake-dating my sister showed up at our front door. Crying his eyes out, snot and all. From a distance it would've been a popcorn moment, but the way he was begging me to let him see her was genuinely pitiful.

God, that bitch inside the house — if she was going to hurt him like this she should've just dumped him sooner. Why create this whole mess...

I calmed the guy down and sent him home.

I went inside, stroked that little bitch's hair as she sat in the living room, and compared her to So-jung.

Yeah... still zero feelings for this crazy girl.

Without a word I went up to my room, got ready for bed, and was about to lie down when—

BANG!

That little bitch was on top of me again, throwing another fit, threatening me.

"Hey!... Cut the shit... If I say we're doing it, we're doing it… ..haa… haa…."

She yanked my underwear off, climbed on top of me, and lined her pussy up with the head of my cock.

This fucking psycho... I have to get out of this right now. That was the only thought in my head as I shoved her off. She tumbled backward onto the bed.

"……?? Did you just push me..?"

"Sorry.. I'm telling you we can't have sex..."

The moment I said that, her face slowly twisted, and she burst into tears.

"Kh-hhk…!! Sob! Whyyy!! Hngk!! You keep rejecting meee…!! Kh-hhk!!"

"..Ha…."

Nothing but a sigh. I couldn't understand at all why she was this obsessed with me, and I didn't want to understand.

She sat up and suddenly grabbed me by the collar. Remembering how she'd choked me before, I immediately covered my throat with my hand.

Seeing that, she ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠let out a hollow laugh and said...

"I-it's because I was seeing another guy, isn't it…?? That's it… right..!! Fuck…! ..That's what this is!!"

Her eyes already looked completely unhinged.

She was practically wailing at me. It was terrifying. Why the hell was she like this..

If I left her like this any longer she was going to do something insane, so I pulled her into a tight hug. Pinning her like this was the only way to get her to settle down even a little.

She cried and cried in my arms for a long time.

I had a dream... Not that much time had passed since then, but I dreamed of Oppa's arms wrapping tight around me.

"Aung…! It huuurts..!"

Yesterday he really pounded into me like a madman. My pussy was spread open and swollen red. Guess the muscles were still shocked from going so long without.

I looked around for Oppa, who wasn't beside me. When I spotted him curled up asleep on the sofa, I felt relieved.

Haa... thinking back to that time I dreamed about, the days I'm living now feel like a miracle. Going to college with Oppa, coming to a motel together like this and having sex... lately every single day has been so happy...

I got down from the bed, dragged my trembling legs over to him, and wrapped myself around him just like that.