Chapter 51: Birthday (5)♥
Chapter 51: Birthday (5)♥
The sofa creaked rhythmically. Between those creaks, there was the sound of skin brushing against skin and the friction of flesh slick with moisture.
Sweet moans shook my mind and vibrated through my very soul. Listening to those sounds, I wondered where, and how, it had all gone wrong.
Was it when I started playing the game with my sister on the cruise not long ago?
Or was it even before that, when I received the game from that mysterious woman?
Or did I have to go back even further?
I didn't know. I simply lay atop my younger sister’s exposed, naked body, our forms pressed tightly together.
“Does it… feel good…?”
Her whispering voice was provocative. Unable to even answer, I pressed my weight down firmly onto Yu-ri’s limp body.
“Ngh, ah, my uterus….”
My sister trembled, letting out a heavy breath. I kneaded her slender, naked frame like a piece of soft dough.
I squeezed her breasts until they filled my palms, groaning at the pleasant sensation of her nipples brushing against my skin as I bucked my hips.
“Keep… teasing me… please….”
Her moans flowed out sweetly. I had no idea how long we’d been at it, but her incredible stamina—and the desire buried even deeper within her body—demanded that I continue.
Matching my sister’s lust, I repeatedly slammed my hips into her pussy. It was already so full of my semen that it was overflowing, soaking the sofa.
“Hngh, ah, ah, Oppa.”
I reached a hand around to toy with her mouth, and she panted, biting and licking my fingers. Her pussy—my own private pussy—clamped down tight, acting as if it would snap my cock right off.
“I love you.”
My body trembled slightly. Even though she had confessed several times already, it felt like it reached the depths of my soul every time I heard it.
That confession held a power that made me realize my sin, guess at what I had done, and exhale a heated breath as I looked back on my long life.
So, I spoke.
“I love you, too.”
“Ngh, ah, hehe, Oppa, I love you….”
Grinning, Yu-ri lifted her hips and swallowed my cock to the root. I couldn't help but gasp at the way she squeezed and pulsed, as if urging me to ejaculate.
“I want to… get pregnant.”
With a squelching movement, Yu-ri gripped and released my cock. With her head turned slightly, she was looking up at me.
“Oppa, make me… pregnant.”
The way her pussy meat clung to my cock while she flashed that hazy smile, her movements…
She was unbearably lovely.
Naturally, I pressed my lips against hers.
I could feel her mouth mumbling as she incessantly whispered that she loved me and wanted me to get her pregnant.
She clung to me, still whispering the same words. I felt her buttocks twitch as she moved her hips back and forth to stimulate my cock.
These weren't the movements of a virgin.
Likewise, they weren't the movements a younger sister should be making with her biological brother.
But I had no room to care about such things.
I moved my hips with the sole thought of getting my sister pregnant, with the conviction that it was okay even if she did.
Even though the contraception function was on, meaning she wouldn't actually get pregnant.
I couldn't even bring myself to think of that.
My only thought was filling my sister’s uterus with my sperm.
Entwined, our tongues tangled as I continued to drive my hips.
The wet, squelching sounds were loud.
“Hngh, ahh….”
Yu-ri’s body trembled as she reached another climax.
Despite the intense sensation of her uterus being crushed by my glans, she pressed her buttocks close to my waist.
Yu-ri looked at me with longing eyes, as if searching for me again.
I stroked her cheek, looking at the situation with a cold clarity.
I had had sex with my sister. And not just sex—it was so sticky and thick it felt viscous.
Even now, I could feel her pussy wrapped around my cock. A pussy that clung to me as if wringing out my semen.
It felt so good I could hardly believe it was my own sister’s pussy, and I moved my hips instinctively.
“Oppa.”
Her whispering voice was sweet, and her body was elastic yet felt wonderful.
It was the same no matter where I touched. It didn't have the softness that would make my hand sink in, nor the tension that would make it bounce off.
It was somewhere in between.
It was the epitome of a magnificent female body, striking the perfect balance.
“Yu-ri.”
“Mm?”
“Your body is so hot.”
I loved the way she let out a small gasp. As if she felt good too, her pussy squirmed and wrapped around my cock.
“Your face, every single part of your body… it’s so hot.”
“Real…ly?”
“You don't think so?”
The words spilled out of my mouth. Not knowing I was even capable of saying such things, I grabbed her supple buttocks and pressed my pelvis hard against her.
She let out a sharp, wheezing breath.
And in between, I saw her body trembling finely.
I liked all of it. With my hands wrapped around her lower abdomen, I panted and moved my hips once more.
In the process, I realized something.
First, the 10x Stamina I had obtained. It was working perfectly. As proof, the amount of semen spilled on the sofa was substantial.
As expected of a game made for such purposes, I realized that everything from my sexual prowess to my endurance and muscular stamina had increased explosively.
The amount of semen I had poured into my sister’s uterus was no ordinary amount. It was an ejaculation volume that would have killed a normal human being.
Nevertheless, my body moved as if it knew no fatigue—as if, in fact, it wasn't nearly enough.
I hammered against her uterus, split her pussy open, and used the pussy meat that had been a virgin’s until recently however I pleased.
I grabbed the waist of my sister, who was gasping with joy despite being used like a tool. When I forced her twisting hips back into place and moved back and forth, a groan escaped me at the stickiness of the pussy meat wrapping around my cock.
“Using your sister’s… uterus… however you want….”
Since she was stimulating me incessantly like that, there was no worry of becoming mentally exhausted either. Rather, I was proud of her for keeping up with me and my 10x Stamina.
The guilt was almost entirely gone. I simply loved my sister for doing her best for my pleasure.
“Pervert.”
“Look who’s talking.”
I bit my lip and pressed my crotch against her buttocks again as she continued her obvious provocations.
I ran my hand down her sweat-slicked spine and watched the line we had crossed stretch from our point of union like evidence, as our bodily fluids mingled.
Like a spiderweb I had seen once, the mixture of semen and pussy juice left sticky traces wherever we touched.
As countless long threads painted the space between Yu-ri and me, I felt an unknown impulse boiling up inside me.
It was a sight with a power that made my breath hitch and my cock, still buried inside her, throb.
As if possessed, I lowered my body again, and Yu-ri smiled happily, exhaling a heated breath.
I slowly moved my hips, repeatedly scooping out and refilling her pussy, which was already overflowing with semen and pussy juice.
I suddenly felt like I had forgotten something. Something that wouldn't easily come to mind.
But since it didn't come to mind, I couldn't pay it any attention.
When I pulled back, Yu-ri would squirm while hugging a sofa cushion and letting out sweet breaths; when I pressed deep inside, she would tilt her head back or laugh through teary eyes while panting. That was all I could see.
I focused on fucking my sister over and over.
The urge to ejaculate slowly rose. With my 10x Stamina, the heat that filled my testicles to no end rushed quickly along my urethra.
Just as I exhaled a bated breath and pushed my cock to the deepest part of Yu-ri’s pussy to press firmly against her uterus—
The door lock opened.
At the sound of the lock opening, the cheerful electronic beep, and the sound of the door swinging wide, the sexual desire and pleasure surging through my cock were cut off at my waist.
I gasped, and her pussy tightened.
Even until the moment my eyes turned toward the door.
“…Huh?”
A familiar silhouette appeared in my peripheral vision. The silhouette, which had been walking in with an armful of things, stopped, and the items in its arms clattered to the floor.
I saw eyes wide with horror.
Below them, a look of betrayal settled on a face that usually looked almost dim-witted. As those eyes trembled and turned toward Yu-ri and me—
I froze in shock, my breath stopping, and called out that name.
“Kang… Yu-min.”
Kang Yu-min was standing there.
“You guys… what are you doing?”
Kang Yu-min’s open mouth trembled. Her eyes trembled even more.
Her eyes welled up with tears, and as she stared blankly at me—
Without even asking for a reason or what to do, she asked in a gasping voice.
“The two of you, just… what is this… are you crazy?”
Closing her mouth in horror, Kang Yu-min looked back and forth between Yu-ri and me. I didn't know how to answer those words. I tried to squeeze out an excuse and get up first, but—
“…Ngh.”
My sister moved before I could.
Without even letting out a gasp, her pussy squirmed and squeezed me hard.
My cock, which I had been trying to pull out, was pushed back to the deepest depths. A look of renewed horror crossed Kang Yu-min’s face, as if she had been waiting to hear my explanation.
“Yu-ri…?!”
Yu-ri didn't answer. Instead, as if action was needed now rather than words, she flexibly wrapped her legs around my waist and pulled me down.
Because of that, I reached Yu-ri’s deepest point.
The most secret place I had pressed into countless times.
Yu-ri’s erogenous zone, reached by pushing the glans against the cervix.
Yu-ri let out a sharp cry at the pressure on her sweet spot and squeezed her pussy hard.
“Ngh, ah, hnghhhh….”
Listening to my sister’s moans, I creampied her once again.
A massive amount of semen, seemingly enough to make a gulping sound, flowed into my sister’s uterus.
As Yu-ri’s body trembled finely and I collapsed onto her, overcome by a sense of lethargy, Yu-ri slowly turned her head to look at Kang Yu-min.
Why on earth would she do this?
Even I didn't know the reason, but when I looked at Yu-ri, she gently stroked my cheek and whispered.
“Unnie, you’re here?”
As if nothing had happened at all.