Sex with My Twin Sister
Yesterday, after Subin and I finished having sex, we took a short rest.
Her sweat-slick body was so soft that my erection refused to go down.
The room that belonged to just the two of us was thick with the sweet scent of first times. We spent a little while trading filthy talk.
I wanted to linger in that cozy atmosphere a bit longer, but Subin opened her mouth.
“I should… go see Chaerin.”
Her voice was a mix of apology and worry.
“She’s been crushing on you for so long. She’s going to be really hurt.”
I looked at Subin for a moment.
It was hard to believe this was the same girl who had been clinging to me so sweetly under my cock only moments ago. Her consideration ran deep.
I silently admired the kindness of her heart and nodded.
So not long after taking Subin’s virginity, I headed home to console Chaerin, who would be crying from jealousy.
When I stepped into the dark house, a faint sob reached my ears.
The source of the sound was the mattress room where Chaerin and I slept.
The blanket had ballooned up like a mountain, and inside it Chaerin was curled into a ball, shoulders shaking as she cried.
I felt a little sorry for her. At the same time, the knowledge that there was a girl weeping this bitterly over me gave me a small, secret thrill.
I quietly approached and slowly stroked her back through the blanket.
I thought about how to comfort her, then simply made up my mind.
Today I would take Chaerin too.
From the very beginning she had been sucking my cock under the excuse of sexual processing and the like; that image still refused to leave my mind.
I couldn’t hold back any longer.
My first sexual processing in this life had been Chaerin, so of course I felt attached.
Was this what people called dick-bond…? Not quite dick-bond—more like blowjob-bond.
With that lighthearted thought, I spoke softly to Chaerin.
“Want me to fuck you?”
The sobbing inside the blanket cut off at once. A brief silence settled.
Then at last a mosquito-thin voice crawled out from under the covers.
“Yeah…”
I couldn’t help laughing at that answer.
The way she melted at a single word about sex was cute, and a little funny.
No matter how strong-willed or clever the women of this world were, in the end they were creatures who couldn’t help clinging to a man who had a cock.
I gently peeled the blanket back. Chaerin’s face appeared, a mess of tears and snot.
She looked at me with slightly swollen eyes, then tried to glance away out of embarrassment.
I took her chin in my hand and gently wiped the tear tracks with my thumb.
“Why were you crying so hard?”
Chaerin kept her mouth shut even at my question.
“Did you… like me?”
I asked even though I already knew. Instead of answering, Chaerin gave a timid little nod.
I stroked her hair once, then slowly brought my face closer. Our lips met.
Chup
Chaerin’s lips, which had gone stiff with surprise, carefully parted and accepted my tongue.
The moment our shyly extended tongues touched, a thrilling sensation swept through my whole body.
The forbidden thrill of mixing tongues with my blood-related twin sister made my cock go rock-hard in an instant.
The longer the kiss went on, the more wildly Chaerin stuck her tongue out.
The kiss was far stickier than I had expected. Chaerin’s kiss held shyness and, at the same time, a desperate plea not to let me go.
Her tongue refused to leave mine for even a second.
I don’t know how much time passed. When I finally pulled my lips away, Chaerin spoke first.
“Sorry…”
My head was already full of thoughts of sex, so I barely registered the apology.
“It’s fine.”
As I said it, I slid my hand under the hem of her half-knit sweater.
When I stripped off the sweater and bra, her enormous breasts spilled free, just as expected.
My twin sister’s tits. Curious what they would taste like, I seized them firmly.
“Hnn…!”
Chaerin’s body jerked. But she didn’t push me away. Instead she looked up at me with even hungrier eyes and whispered,
“Harder… knead them harder…”
I grinned and put more strength into my hands. When I squeezed as if milking her, her stiff nipples scraped against my palms.
Soft flesh squished between my fingers, and every time it did a sweet moan burst from Chaerin’s lips.
She was definitely far more sensitive than Subin, who had HSDD.
I yanked her pants and panties off in one go. An incredible sight unfolded.
“Whoa…”
The admiring sound slipped out of me before I could stop it. Chaerin’s panties weren’t just damp with love juice—they were soaked through.
Sticky fluid had run down the insides of her thighs and was gleaming there.
I decided further foreplay would just be torture, so I got ready to enter her right away.
After stripping myself as well, I laid Chaerin down on the mattress and took the missionary position.
I pressed the head of my cock against the entrance of her thoroughly soaked pussy.
Just as I was about to push in, Chaerin spoke in a tearful voice.
“Someone like me… being your twin sister… I’m really sorry…”
Deep guilt colored her voice. There was probably more to the story that I didn’t know.
But right now, with my cock this hard, none of that mattered.
So I sealed that trembling mouth with another kiss. After pulling away, I looked straight into her eyes and said,
“No more apologies today. And the truth is, I’ve had feelings for you too.”
“…Huh?”
Chaerin’s eyes went round with shock. Without giving her time to process the meaning of those words, I thrust my hips forward.
Tzzgeok…!
“Hyaa, aahng…”
A little pain from her hymen tearing around my thick cock, and the pleasure of accepting a foreign object for the first time. The two opposing sensations crashed over Chaerin’s entire body.
As expected of the sensitive women of this world, within a few seconds the pleasure completely overwhelmed the pain.
At first my cock seemed to slide in fairly smoothly, but halfway in it met the distinctive tight resistance of a virgin.
“Huu, euhht, Sihyuk…!”
I pushed in slowly—but not too slowly.
The chewy virgin walls clamped down around my cock. When I was about halfway in, Chaerin’s body began to tremble violently.
“Haa, euh, it feels weird…! I can’t… put any strength in my body…!”
So this was the reaction of a weak little pussy. I cheered silently to myself.
If the slow, climaxing sex with Subin was a refined dish that deepened with subtle flavor, then sex with Chaerin was like greasy fast food that made her cum and squirt love juice almost immediately.
Alternating between the two of them suited my tastes perfectly.
At last my cock settled all the way to the root inside her.
Even though Chaerin wasn’t particularly tall, her pussy was surprisingly deep.
“Hyaaa…! It’s… all the way in…!”
Just from that, Chaerin twisted her hips and came lightly.
I brushed her damp bangs aside and mixed my breath with her ear as I spoke.
“Cute.”
“Hnn…!”
Chaerin hid her face behind both hands in embarrassment.
“Move your hands.”
“…No.”
“Will you move them for me?”
At my gentle tone Chaerin hesitated for a moment, then reluctantly lowered her hands.
Her face, flushed deep red from sexual excitement, was unbearably adorable.
I pulled my cock out a little, then drove it deep again.
Once I had opened the path, her pussy welcomed my cock with soft walls as if the earlier tightness had never existed.
Chulpeok! Chulpeok, chulpeok!
Her G-spot must have been shallow; even the slightest movement made the head of my cock scrape against it, and Chaerin’s body bounced wildly.
I loved this kind of hypersensitive, premature-ejaculation pussy that felt everything so intensely.
“How long have you liked me?”
“….”
“How much do you like me?”
“….”
Instead of answering my questions, Chaerin only pressed her lips together.
I understood she was shy, but it still felt a little cheeky, so I began to pick up the pace of my thrusts.
Tzzbeup, tzzbeup, tzzbeup, tzzbeup!
“Haang! Ah! Ang! S-Sihyuk, wait, too fast…!”
“I’m not stopping until you answer.”
Puk! Puk! Puk! Puk!
I mercilessly pounded her pussy.
Chaerin’s huge tits bounced wildly. She screamed with her mouth wide open and, not long after, hit her second climax.
“I’m cumming…! I came again…!”
Her pussy convulsed hard and squeezed my cock tight. Even though she wasn’t an academy graduate, the grip was pretty good.
Even after Chaerin came I kept rolling my hips without a care. The head of my cock jabbed against her cervix.
“Hiiiek!”
Pleasure on a completely different level must have hit her, because Chaerin’s eyes rolled back a little.
Satisfied that I had found her weak spot, I began relentlessly knocking on her cervix with the head of my cock.
When I pulled the head all the way out, sticky pussy flesh clung to my cock and came with it.
And when I thrust back in, I scraped across her G-spot with the head before finishing with a hard pak against her cervix.
Pang! Paang! Pang!
The lewd sound of flesh slapping flesh and Chaerin’s screams filled the room.
She couldn’t even last that long and came again. My own cock was nearing its limit. Her slutty reactions kept pushing my urge to cum higher and higher.
Yet somehow she knew I was about to finish, because Chaerin hugged me tightly. She wrapped both legs and both arms around me in a perfect lock.
“Inside, cum inside me… please…! Fill my pussy, euh, with everything…!”
My twin sister’s voice begging me to creampie her blew away the last of my reason.
“Don’t worry. I’ll dump every drop inside you.”
Whispering into Chaerin’s ear, I moved my hips like a madman at full power.
Puk, puk, puk, puk, puk!
“Hyaaa, kyaht, kyaaaaang…!”
Chaerin let out a scream close to a shriek and trembled violently. At the same time I pressed the head of my cock against her cervix and poured out hot cum.
Byurrrrrrut! Byurut! Byurrrrrrut!
I had lost count of how many times I had cum today alone.
Of course my cock was still perfectly fine. Plenty of semen came out too.
Chaerin’s pussy lovingly milked my spent cock, wringing out every last drop of cum.
When I tried to push myself up after emptying everything, Chaerin hugged me even tighter.
“Haa… haa… haa…”
Pressing her soft tit-pillows against my chest, she spoke in a voice full of emotion.
“I can feel… your heartbeat…”
Chaerin met my eyes, tears welling up.
“My heart’s beating too, and my pussy is throbbing. Can you feel it…?”
I quietly stroked Chaerin’s face.
Her pussy, still gripping my cock, was twitching. It really did seem to twitch in time with my heartbeat.
“Finally… finally I’ve become one with you…”
In the end Chaerin shed tears as she confessed to me, her family.
“I love you♡”