26. Sex Slave Younger Sister
THUMP THUMP THUMP THUMP THUMP
My heart was pounding so hard it felt like my brain was melting from pure anticipation.
It was far more intense than the first time I’d secretly watched Mom and me having sex.
Far more than the training sessions with Dad.
Heat surged through my body, leaving me trembling with wild, insane arousal.
“Then I’m putting it in, Oppa♥”
“Min-jung, no!”
“If you don’t want it, you can just dodge♥ But if you don’t dodge, I’ll treat it like I’ve accepted it♥”
If she had truly hated it, she would have pushed me away.
She couldn’t have simply lain there like this.
She might have let me do it because I was Oppa, but the real reason was shame.
“My pussy is already soaking wet♥”
Embarrassed, she spread her legs and showed me her dripping, lewd folds.
Thick, obscene juices ran down in endless streams.
As my cock grew filthy from her dripping nectar, a shiver raced all over my skin.
I’m going to become a sex slave like Mom♥
This was the end of our ordinary Oppa-sister relationship.
I had no intention of letting one mistake slide by.
From now on, I was going to become Oppa’s thorough, miserable, and humiliating sex slave just like Mom.
And I was going to become his even more lewd, shameless bitch.
CHIRP
“Huuuuh!!♥”
“Stop it, Min-jung!”
“Too late, Oppa♥ Oppa’s cock is already sliding into my pussy♥ Huuuuh♥♥”
Even as I forced her tight entrance wider, the male cock pushing inside felt impossibly thick.
I had known it was big, but I never expected it to be this brutal.
It’s like I didn’t loosen myself up with a dildo, so it’s even harder♥
I had decided this would be the first time I took Oppa’s cock.
That was why I hadn’t used a dildo or a vibrator to masturbate.
Even when I imagined Oppa raping and degrading me, I only ever used my fingers.
Fingers are in a completely different league from a real cock♥♥
A huge male cock compared to the slender, delicate fingers of a bitch.
CHIRP
“Ooooh♥♥”
Just the tip had entered, yet her pussy clamped down so tightly I felt pleasure surge through me.
This is definitely the final corruption of a bitch♥ Once she knows what a cock feels like, she’ll have no choice but to become a slave♥
“Haa♥… Haa♥… Even though it’s only halfway in, my pussy feels so full.”
“How is this… even possible?! Crying out in shock!”
Oppa was desperately trying to resist pleasure and pretend he felt nothing.
But the rock-hard cock had already decided to fuck the bitch right in front of him.
“Now I’m Oppa’s sex slave♥ I’ll bring the contract later and give it to you♥”
“We’re siblings… How can this be?! Crying out in shock!”
“Even though you did it with Mom… I really am♥”
Oppa and Mom had already crossed the family line first.
But if I crossed it too, what was the difference?
I had wanted to become Oppa’s slave from the very beginning.
I had even hoped he would overpower me one day.
Especially on the nights he came home drunk, I had deliberately pressed close to him and flirted.
While secretly praying he would rape me in his drunken haze.
But nothing had happened, so I had given up.
Oppa wouldn’t come to me?
Then I’ll go to him♥
The first time would be hard.
After that, it would get easier.
CHIRP
“Huuuuh♥♥ Oppa’s cock is halfway in♥”
“Min-jung…”
Oppa’s voice sounded like he had already given up.
I was sorry for forcing the line, but I had no choice.
“Oppa♥ Ah♥ Oppa♥ Dad♥”
CHIRP CHIRP CHIRP CHIRP CHIRP
Once I got used to the rhythm, I began to rock my hips.
Oppa’s cock slid in and out of my pussy.
“Huuu♥ Uu♥ Haa♥ Aa♥ I don’t know this feeling♥ It feels so good♥ Ah♥”
Ecstasy that turned my brain to mush washed over my entire body.
The pleasure rushing in with every thrust dwarfed any masturbation I had ever done.
“Oppa’s cock is coming inside♥ It’s inside my pussy♥ Huu♥ Uu♥”
I had perfectly crossed the line.
Now I could never return to being an ordinary sibling.
If Oppa pushed me away, I would leave this house.
But that wasn’t going to happen.
Oppa would never push me away♥
CHIRP CHIRP CHIRP CHIRP CHIRP
“Ah♥ Haa♥ Haa♥ Uu♥”
Absolute trust in Oppa.
I was certain he would never hate me or reject me no matter what I did.
“Oppa♥ Oppa♥ Oppa♥”
Shaking my hips while calling out the name of my beloved Oppa.
It felt like I was losing my mind from the overwhelming pleasure.
“I’m cumming♥ I’m about to cum♥ Aaah♥♥”
PUUUUUUUSH
A thick, lewd torrent erupted from me.
For the first time in my life, I felt true orgasm.
“Ooooh♥ Huu♥ Haa♥”
My mind went blank.
The pleasure was so intense my body wouldn’t move properly.
I did it♥
I had finally crossed the line with Oppa.
But I had zero regret.
“Huu… Min-jung.”
“Ah♥ O, Oppa♥”
Oppa’s voice sounded a little angry.
Yet the more I heard it, the hotter my body grew.
“Now I can’t hold back anymore… Don’t regret it.”
“U, uh♥”
I slowly raised my arms.
Looking at my pose, I thought:
Maybe… maybe I should regret it a little♥
———
Her younger sister was still shaking her hips above me.
After she came, she was breathing hard and recovering.
She’s moving again.
The body that had been completely still until just moments ago was starting to move properly now.
As if what had happened earlier had been a lie.
“Huu♥… Haa♥”
Min-jung was smiling lewdly with satisfaction, trembling.
She had already lost so much that she had drenched everything with pussy juice.
“She’s shaped just like Mom.”
I had a lot in common with her, but especially in this lewd way.
As her Oppa, it was strangely complicated.
And now I could never go back.
Oppa’s cock was still buried inside her pussy, moving.
Her pussy was gripping it so tightly.
She had been a virgin until a moment ago, but now she wasn’t.
She was still stuck to my cock, squeezing it obscenely.
Insane arousal and lewdness filled me.
For days I hadn’t been able to fuck Mom because of Min-jung.
The result was a massive buildup.
I had cut the remaining male bond cleanly.
“Huu… Oppa?”
“Min-jung.”
“Hehehe… Oooh?!♥”
THUD!
I shoved my cock deep into the smiling pussy that looked at me.
“W-why?!♥ I thought it was all the way in… Uu♥♥”
She thought I had finished, but I hadn’t.
Because the bitch’s womb was lazy and kept lowering.
So her pussy was a little shorter than usual.
If I forced my cock all the way in?
“Ooooh?!♥”
The intense pleasure I had never felt before crashed over me at once.
The pussy lips were stretched so wide by my cock that they looked like they were being ripped.
“Now I can’t hold back anymore.”
THUD!
“Ooooh?!♥ O, Oppa♥♥”
I flipped Min-jung onto her back and climbed on top.
She had just orgasmed, her expression confused as she looked up at me.
What had felt good until now would be different now.
SQUEEZE
“This pose is embarrassing♥ Uu♥”
“From now on, you’re going to do even more embarrassing things, so get ready.”
“Y-yes♥”
I had been angry with Min-jung for the first time in a long time.
I had tried to resist with my brain, but it was impossible.
Something is blocking my thoughts…
Even when I tried to stay rational, something kept me from thinking clearly.
I was simply giving in to instinct and pounding my cock into my little sister.
THUD!
“Ooooooh!!?♥”
“I’ll show you exactly how it feels to get fucked raw.”
CHIRP CHIRP CHIRP CHIRP
“Ooh?!♥ Ooooh?!♥ Hiik?!♥ Ouu?!♥ O, Oppa♥”
Min-jung had been moving her hips leisurely on top of me.
But I was feeling pleasure I could barely speak over.
Her bouncing breasts were hypnotizing.
SQUEEZE
“Huuuuuuuuh!!♥♥”
When I roughly grabbed her tits, lewd moans exploded out.
The intense pleasure that went far beyond before was overwhelming her.
I couldn’t even speak properly.
“Put your hands behind your head and don’t move.”
“Y-yes, I understand♥ Uuuuuh♥♥”
I grabbed her legs and spread them wide apart.
The lewd pose of a bitch displaying her most vulnerable spot.
My cock grew even harder at the sight of her waiting to be fucked.
Just like Mom, I had ended up in this relationship with my sister.
Once the line was crossed, there was no going back.
No… I don’t want to go back!
THUD!
“Ooooooh?!♥♥”
PUUUUUUUSH
Thick pussy juice sprayed out in a massive orgasm.
The bed was already soaking wet.
“Her pussy is just as sloppy as Mom’s.”
“Huuu♥ Right now, talking about Mom is…
“Shut up and squeeze my cock properly.”
SQUEEZE!!
“K, kya?!♥”
When I gripped her throat, Min-jung panicked because she couldn’t breathe.
I hadn’t squeezed hard, but the cock buried inside made it impossible for her to breathe properly.
CHIRP CHIRP CHIRP CHIRP
“I’ve been taking care of you since you were little, and you grew up to be a pig that fell for Oppa’s cock.”
“O, Oppa♥ Kya♥ Uuu♥”
Her pussy squeezed even tighter around my cock as I spanked her and choked her.
Just like a virgin’s pussy, it clung desperately.
Thanks to the impossible masochistic nature I had inherited from Mom, I felt everything intensely.
Even in this situation, she obeyed my commands without letting go of my hand.
“I’ve never cum before.”
“Cum♥ Cum on your little sister’s pussy♥ Kuuh♥”
A true, uncaring, horny pig of a sister.
Just like Mom… my sister too.
BRRRRRRRRRRR!
“Ooh♥… It’s coming…♥ Hoo♥”
PUUUUUUUUUSH
I dumped thick cum straight into her as she came again.
After she orgasmed several times, she was completely lost in bliss.
“Huu…”
I had barely managed to stay rational and been gentle,
but Min-jung was already about to pass out.
“…For now, let’s scrape out the cum.”
When I pulled out, thick white fluid poured out in rivers.
SQUISH SQUISH SQUISH SQUISH
“Hiit♥… Haa♥… Hoo♥”
PUUUSH
While I scraped the cum out, I looked at Min-jung leaving and thought:
She really was shaped just like Mom.

(The sister who looks just like Mom)