Fellatio for Ten Thousand Won, Sex for Twenty Thousand Won.
August 5th, Monday. Monday has returned once again...
As expected, the academy carried on without a single change. Even in the sweltering midsummer heat, this was a re-taker cram school—no such thing as summer break or trips—so the students punching their attendance cards with grim, deathly expressions were the same as always. The principal who slinked up to me slyly, the instructors... everyone behaved exactly as they had last week. No reason for anyone else's life to change. Except mine.
Only I and that bastard knew what happened yesterday. So, just as a square peg must become square to fit into a square hole, I managed my expression to look like nothing had happened and went about my day as usual. Clocked in like normal, half-assed my promotional duties, browsed the promo site, then headed to the classroom for a quick Q&A session as the on-call teacher.
"...So the answer's number 3. Got it?"
"...Uh, probably?"
Just like any other day, I gave a half-assured explanation as the Q&A teacher, then stretched out with a big yawn. That's when, through the full-length glass window, I spotted a smirking monkey face down the hallway. It was Cheol-gyu.
I tried to look away from that disgusting face of his... but beep! Sure enough, an unwelcome message alert chimed, and a KakaoTalk popped up.
"...."
Back then, I would've told him to cut the bullshit—even when he found out I was an OP girl. But now... I had a collar around my neck.
===== About 12 hours earlier. Home. Cheol-gyu Lee's room.
At that moment, I was...
"Ngh... mmph...!"
"Shh. Sis, you wanna wake Jin-woo like that? Huh? Why can't you hold back your moans?"
"...I-it's 'cause... y-you keep thrusting..."
This was the third time with Cheol-gyu—that monkey-ugly, dog-shit cousin of mine. Twice I'd been raped by him already, drained of all energy, collapsed face-down... and this bastard wouldn't let up, mounting his prone cousin from behind, forcing himself in, raping me again.
But... even as this piece-of-shit treated me like shit and fucked me like shit, I couldn't resist like before. ...Fucking Sextwitter. I never should've done that!!! Goddamn it, I must've been crazy... But why the hell did I film it in my room of all places and post it?
I'd always mocked him, saying his porn-addled brain just spun weird fantasies. But now he was blackmailing me with the exact same tactics from those pornos and hentai... and I had no sharp comeback, so I ended up blabbering helplessly like those brainless sluts in the videos, getting screwed just like them...
"Hmph...!"
This was blatant rape, with my little brother next door and my uncle in the master bedroom... yet I, the victim, had to strain desperately to stay quiet. So I bit down on the blanket or pillow, muffling the moans that slipped out no matter what.
Yeah. I had no choice. Women... even during rape, our bodies react physiologically to stimulation. And the real injustice? Despite his ugly mug, his dick was genuinely huge...! Easily over 17cm, thick as a club, that meat bat pounding my cervix entrance nonstop—how the hell am I supposed to stay silent?
But my cousin, riding my back and shaking me at his whim, misinterpreted my involuntary grunts as something else.
"Hah... hah! Sis, you getting off on being raped? Holy shit, for real? Lmao. If that's the case, why didn't you just spread for me sooner? I would've paid extra back then!"
"...Th-this is just... involuntary..."
"Lmao... what're you saying? 'Involuntary'?"
"Hmph...!"
"What? So your pussy's just some trash that cums from anyone fucking it?"
This retard. What the hell does he watch to spout lines like "trash pussy"? It was utterly humiliating and shameful that I couldn't even fight back against this otaku piece of shit fucking me...
"Hah... hah! C'mon, moan louder? Huh? Advertise to the next room. Let Jin-woo hear. Oh, wait—you're already the slut jerking off shamelessly over your brother's bed, right? No shame left?"
"...."
And even hearing this humiliating shit... I couldn't properly retort... tears welled up in my eyes. Just like he said, I had nothing to say about that...
For real, like I was possessed or lost in lust that day, it was true—I'd masturbated on the bed where my own brother slept. I couldn't even deny it. And seeing I had no comeback, Cheol-gyu got even more excited.
"Hnggh.... mmph.... mm... mm... mph... m-mph! Ngh! Nn! Nn!"
Even with the blanket crammed in my mouth, moans leaked out as he stabbed deep with that long banana dick, hitting my womb...
"Haaahng...."
Shudder.
This was blatant rape. Blackmailed "no-choice" rape. Yet shamefully, my body reacted vulgarly and honestly, whether he forced it or not. I trembled and came.
"Whoa, holy shit... your pussy juice flooded everything."
Just like his crude words, I soaked the sheets with massive loads of cum and my fluids from below.
And just like that... I fell into being his slave.
=====
"....Why'd you call me here..."
The spot he'd summoned me to was that shady alley from my call with the Manager not long ago. The corridor connected to the back door of the warehouse stacked with academy equipment. I didn't even need to ask.
"Why call a whore out? What do you think?"
"...."
He deliberately crushed my pride with the most insulting answer.
"What? Upset?"
"...."
"Last time I asked you to suck it here, you said no, right? Wanna test if it's still a no?"
"...."
After yesterday, he'd collared me tight. ...Not from finding out I was an OP girl before, but from proof of my lewd acts in the room I share with my little brother.
Multiple times on Sextwitter, with my bedroom as backdrop, I'd filmed myself kneading my tits lewdly, pussy juice dripping everywhere—with my own hands, uploaded it all...
Not just once or twice. The first time was hard, but after... especially mornings after Jin-woo left for the academy, before my shift... as my body heated up, I'd shoot all sorts of filthy videos. Being an OP whore had the excuse of needing money, but this...
"Holy shit, I was shocked seeing this. Sis, this for real? Whoa... even for a slut, this was too much."
"....Wh-why do you keep showing me that?"
"Hold on. This is the one that really moved me. Check it out, sis."
What he shoved in my face... shamefully, one of those Sextwitter videos I'd shot.
Truly mortifying... it was me, his actual sister, rubbing my genitals on Jin-woo's desk corner to masturbate, photos and video.
I screamed internally and grabbed his wrist in a panic...
"...St-stop showing it... I-I'll suck you off, okay? Right now. Yeah?"
"Nah, wait. You're gonna do it anyway... but it's better if you watch and react together, right? Heh."
Play... don't!
But relishing my blushing, foot-stomping shame, he brushed off my hand, grinned goblin-like, and thrust the phone right in my face, playing that vulgar, embarrassing video before my eyes.
-Hah.... hah.... Ah, ah!
In the video, me... God knows why back then, but video-me, that horny mad bitch... top off, just panties on bottom, grinding my crotch on Jin-woo's study desk corner, moaning lewdly...
Started with panties on, corner-rubbing till my gray Calvin Klein undies were soaked, drops dripping one by one... rubbing my clit repeatedly on the edge till drenched... then panties to my knees, deliberately spreading my pussy to show pink labia minora clearly for the shot, snapping pics of my swollen, erect clit, back to video. This time, shoving the corner deep inside my pussy...
Plop! Plop! Stimulating my clit with the sharp desk edge.
Ughhh!!!
I squeezed my eyes shut—it was too much—but squelch, squelch-squelch. The lewd sounds of juice gushing from my slutty pussy hit my ears straight.
"Holy shit, epic. Sis, look at sis's pussy juice flooding the desk like a river. Lmaoooo"
"Hah... please stop... for real..."
"What if... I send this to Jin-woo as fap material? Say I 'found' it on Twitter by chance, no idea it's his sis. How's that? Wonder what our model student Jin-woo would do knowing his own sis squirted pussy juice all over his desk corner? I'm dying to see his reaction."
That's why he had me collared. If Uncle Yong-gu, my brother, or even Dad saw this... it'd be worse than my OP whore job...
Face ashen, I had no choice but to beg him. Our power dynamic flipped completely... to this goblin-monkey bastard, humiliatingly, I had to kneel and plead for mercy.
And as I knelt, he placed a hand on my head, petting me like the family dog, Mongi.
My jaw trembled with humiliation, but I said nothing... then he tossed a crumpled 10,000-won bill at me.
"'Family' discount, yeah? One dick suck for 200,000 is too unethical, right?"
"....Huh?"
"From now on... fellatio for ten thousand won, sex for twenty thousand. How's that?"