25. Education
With both his hands and feet bound in handcuffs, Oppa kept twitching and jerking, cum still dribbling in thin spurts from his cock.
“Was it that good?”
“Uuuuuuugh…….”
Whatever pleasure he was drowning in, Oppa’s eyes had gone completely unfocused; all he could manage were those weak, broken moans.
“Shall we go collect the price for that little rebellion of yours~?”
It had only been a day—two at most—since I’d started training him so thoroughly he wouldn’t be able to live without me. A bit of resistance like this was already within my expectations.
If I kept reshaping him like this, body and mind both, until he couldn’t defy me anymore… Oppa would never be able to run from my side.
A body that, without me, couldn’t even feel arousal or climax—thanks to my training skills~
Thanks to the cuffs stretched to either end of the bed, I settled myself right between his legs.
“Ah, I forgot to take out the lube.”
His ass still wasn’t developed enough. If I forced a gloved finger in now, it might tear him open.
That couldn’t be allowed to happen.
We’d only just started training; if it hurt too much he might still bounce back from it.
“Hmm…….”
For some reason a brilliant idea struck me.
“Kk—uuuuugh… hiiik…….”
I stared straight at the cock right in front of my face.
The pleasure of that single orgasm must have been enormous; cum kept leaking in little spurts from the slit of his urethra.
“Will this be enough?”
I lightly dabbed a fingertip against the tip of his cock where the cum kept oozing out.
“Ugk—uuugh!!”
—Brrrrrrrrrrrt….
“Heheh, so cute♡”
I’d barely touched him and he was already cumming again—though it wasn’t a strong ejaculation. Thick, sticky sounds accompanied the semen as it welled up from his urethra and slid heavily down the shaft.
“Huhu, perfect timing.”
Cum that could serve almost the same purpose as lube had just spilled out for me.
“The viscosity is good, nice and slippery~ I wonder how it tastes~”
I scooped up the semen that was about to drip from his shaft onto the floor, smearing it across my fingers—
—Slurp.
“Mmmmmmm.”
So thick♡
My whole mouth filled with the taste of Oppa’s cum♡
I kept it on my tongue, savoring it. Rolling it around, chewing it slowly….
“Bweeeeh~”
I opened my mouth wide and showed Oppa the load of his own semen still sitting on my tongue.
“Look, Oppa—doesn’t this turn you on? Your little sister tasting your cum like this~”
—Gulp.
Ugh, delicious♡ It feels addictive.
Oppa stared at me with half-lidded, vacant eyes, but gave no reaction at all.
“Taste: pass! A perfect hundred out of a hundred—no, I’ll give you ten million points, Oppa~ Happy? Since your little sister just awarded you ten million points, here’s a special prize.”
With my gloved hand I gripped the base of his shaft.
Then I slowly stroked upward, coating the glove in a thick layer of fresh cum.
“Wooow, there’s so much~”
Enough had gathered on the glove that it was practically pooling.
“This should be plenty, right? Well… if it’s not enough I can just milk more out of you.”
I began smearing the cum all over my gloved fingers in place of lube, coating them thoroughly.
“Heheh, Oppa’s cum is so slippery~”
Like a kid playing with giant soap bubbles, I pressed my palms together and slowly pulled them apart.
“Just how virile are you, Oppa? With this much you could probably knock me up in one go without even eating anything special.”
Even with my left and right palms separated, the sticky strands of cum refused to break.
“I’d love to keep playing with it, but your pretty little sister’s laboratory time is over. Time to begin, Oppa♡”
I started slowly rubbing the cum around his asshole as a substitute for lube.
“Oppa, what if you end up getting yourself pregnant with your own cum?”
“U-ughk… s-stop… don’t…….”
“Relax for me. Otherwise you’ll tear~”
“Kkkuuuugh… hnnngh!”
—Brrrrrrrrrt……
I was only just beginning to ease a finger into his ass so I could reach his prostate when Oppa came again.
“Aren’t you a total pervert? You came before I even got a finger inside—looks like you’re a genuine masochistic M.”
“Hngk-uuugh… st-stupid… I’m turning stupid…….”
“Mm-hm, if you turn stupid I’ll take care of you for the rest of your life. Don’t worry—just go ahead and become a complete idiot.”
Earlier he’d only been moaning; now he was speaking in lewd, slurred fragments.
“Th-that… hngk… stop…….”
“I can’t hear what you’re telling me to stop, so I have no idea~”
I kept rubbing his own cum around his entrance while slowly pushing a finger inside.
“Kkeeeh-eeehk… p-please… stop it already…….”
“There we go, almost in—just a little more, fighting!”
My finger finally breached the tightly clenched ring of his ass.
“Maybe I really should have used proper lube. Cum isn’t quite as good.”
Last time I’d used actual lube to stimulate his prostate; this time I was making do with his semen. Two fingers had gone in before, but now only one would fit.
“Whatever, doesn’t matter. Pressing it works the same either way.”
“Stop it already—kkkuuugh…….”
“Hmm, I’m pretty sure it was around here.”
I twisted my finger around, searching for his prostate.
“Stoooop…… I-I’m… sorry… please… stop already… I’m really turning stupid—kkkuuugh-uuuugh!!!!!”
—Brrrrrrrt!! Brrt!!!
I kept pressing here and there until I finally found it. The instant my fingertip dug in, Oppa’s hips bucked hard and he began shooting violently into the empty air.
“Hiiik-eeehk!! Please—stop already!!”
“Heheheh~ So how does it feel right now, Oppa?”
One press of his prostate and Oppa was trembling violently, cum pouring from his cock like water.
“Okay, this time two in a row!!”
“Don’t… p-please… my head… I can’t think…….”
“Press~ press~”
I completely ignored his words and pressed his prostate twice more—four times total.
Each press made Oppa’s hips rise higher until his back arched like a drawn bow. As his ass lifted with them, I pulled my finger free.
“Hiiik-eeehk!!”
—Brrt!! Brrrrrrrrrrrt!!!
A powerful ejaculation sent ropes of cum flying through the air, spattering all the way to the floor.
“Khaaah-uuuugh! S-stop… it’s not stopping… aah it won’t stop!!”
“Heheh♡ Aah, I love this. I really love this. I have to film this.”
I grabbed the camera from its stand and began shooting Oppa in extreme close-up—the way cum kept pouring from his cock, the way his face was melting into pure idiocy—capturing every single detail.
The orgasm lasted so long I half expected it to set a world record. When it finally ended, Oppa lay on the bed gasping for breath, his whole body convulsing as if seized by spasms.
“How was that, Oppa? Feels amazing, right?”
“Hwaaaaaaah……….”
Oppa’s eyes had rolled back; his mouth hung open and drool ran freely down his chin.
When he didn’t respond, I grabbed the water bottle I’d brought yesterday and splashed it across his face.
“Hwaaah… haaah… u-uuuh…….”
The water seemed to jolt a little awareness back into him; a faint spark of life returned to his eyes as he looked at me.
“How do you feel right now, Oppa?”
“U… uuuh… stupid… I’ve turned stupid…….”
“Right? Feels like you’re becoming an idiot, doesn’t it?”
“Y-yeah… yeees…….”
“I figure you must have learned some kind of lesson from this, but I don’t know what that lesson is. Won’t you tell me, Oppa?”
The aftereffects still had him too far gone for coherent speech.
So?
I wasn’t kind enough to wait around for him.
He’d rebelled, so he needed a proper education. If he couldn’t tell me what he’d done wrong, I would simply go back to his prostate.
“D-don’t… run away… hiiik… no more…….”
“Ohhh? Is this the power of my loving education? You’re halfway to the right answer, but it’s not complete yet. Try saying it again, Oppa?”
“I… I rebelled… against Minhi…….”
“Mm-hm, that’s my adorable Oppa♡ Finally my education is bearing fruit~”
I pulled him into a tight hug for giving me the correct answer at last.
“If you ever try to run or rebel again, I’ll educate you just like this~”
“D-don’t… don’t do that……….”
“Hm? Oppa??”
It was only a loving hug to reward him for enduring his education so well—yet Oppa seemed unable to take it.
A scream-like moan escaped him, then he went quiet. He fainted on the spot, blood beginning to trickle from his nose.
“The effect is good, but maybe I overdid it a little? He couldn’t handle it and passed out. Well… doesn’t matter. From now on the idea that rebelling or running will get him educated like this is burned into his head, so it’s fine~”
“Hwaaah…….”
In the end I couldn’t take it and blacked out….
The last thing I remembered was being stripped naked, yet now I was wearing something that wasn’t mine—Minhi’s pink pajamas.
And beneath them, the heavy metallic weight of the cuffs….
Visible through the thin fabric of the sleepwear, my skin was covered in bite marks.
Countless bite marks. Minhi lay sleeping right beside me.
She seemed to be in a deep sleep, completely unguarded, so I tried to get up from the bed.
If you ever try to run or rebel again, I’ll educate you just like this~
The words Minhi had spoken right before the injection and the overwhelming pleasure knocked me out echoed over and over inside my head.
“…I-I don’t want this…….”
If I left this bed now, I had no idea what Minhi would do to me.
The mere thought that she would “educate” me again for the single crime of displeasing her froze my body in place.