Hikikomori Brother and Perfect Sister - Sister's Frenzied Masturbation!
Hahk... Hak... Hahk...! A rasping moan like the guttural cry of a beast in heat filled the room.
"Hngh... Hahk... Little brother...! Jinseong's cock...!"
Smooth— smooth— smooth— A woman, eyes half-lidded in total absorption, gripped one breast with one hand while the other clutched something between her legs, shaking it rhythmically.
"Ooh...!! Ohook...!!"
She was beautiful, but the way she pursed her lips and let out those vulgar moans was anything but.
And between her legs... Throb-! Throb-! Throb-! A cock sheathed in a clear condom stretched it taut, twitching erectly.
Grrumble...!! The fully equipped shaft, complete with balls, wrinkled them up tight to the base in a signal of impending ejaculation.
"Haaahngh!!! Jinseong's balls are pulling up again...! The cum's rising—...!!"
Thud-! Kneeling as she spat those crude words, she sped up her strokes.
"It's coming!! It's rising higher!! Hiiik...!!!"
No one knew why this woman had a cock, but it was unmistakably a man's masturbation.
"Comingcomingcomingcomingcoming—-!!"
Though a woman, she had perfectly mastered the timing of a male climax.
"Hngghk!!"
Grrumble—!! Her eyes rolled back white as her swollen balls yanked up to the root—
"—Haaaooook—!!!"
She arched her back like a bow and threw her head fully backward.
Spurt—! Splurt—!!! Gush— Sploooosh—!!!
"Oooook...!!"
The rigid meat rod, pointed skyward, expelled every drop of semen from her balls with all its might.
Slosh-...!
"Aah..."
Only after the condom ballooned like a ping-pong ball with cum and drooped did her orgasm end.
Thud-...! Tremble tremble...
"Ook... Clothes..."
Sion, who had turned the condom into a monstrous balloon worthy of an animal's load, knelt gripping her cock tightly, her whole body convulsing in male ecstasy for a long while.
Too... too intense...
For a woman whose lifetime of masturbation had only brought faint orgasms, this explosive male climax—releasing pent-up pleasure all at once—was an overwhelming stimulus she could barely handle.
But it feels so good...
Yet that intensity quite pleased Sion.
"Kkh... Hn... Hnh...!"
Even lost in the mind-melting pleasure of ejaculation, the corners of her mouth curled in a grin of utter satisfaction, revealing an unmistakable mania.
"Too... too good..."
She wasn't just one body with her beloved little brother now—she could wield his cock as she pleased and share the ecstasy of his release.
I'm the happiest... big sister ever...
The fulfillment from that was a thrilling rush she'd never known in her bland, colorless daily life.
Whoooosh... A fishy, acrid air wafted through Sion's room... Drip... Empty condom boxes and stretched, slimy used remnants rolled around her.
At a glance, it looked like several people had used them over days—but astonishingly, Sion had gone through them alone in just half a day.
No. Correction.
"Jinseong... you feel it too, right? Hehe."
Precisely, it was the result of Sion's body fused with Jinseong's physical prowess.
All the men on Earth had been turned into parasitic dicks by the alien Jujis, and compelled by genetic commands, they fused with women everywhere.
- Hiiik-!! A cock's going into my pussy...!
- I... I've got a guy's dick...!
Women recoiled in horror from the sudden parasitic dicks lunging at them, trying to flee.
Flop—! Flop—!
But the dicks, driven by instinct to wither and die if they didn't parasitize a woman in time, desperately charged their crotches to invade via the vagina.
- Kyaaak! Stay away! I said stay away!
Flop...!
Of course, tiny dicks sized to their former owners struggled to infect much larger women.
A single stomp from shoes or heels dealt massive damage; even brushing thrown objects kept them at bay.
Yet in this overwhelmingly disadvantageous situation, most succeeded for one reason.
Gush—!! Splash—!
The mixed semen the parasitic dicks could fire once a day with all their energy.
My... my body's not moving!
The bullet-like jet paralyzed any woman on skin contact, turning her to stone while relaxing vaginal muscles and flooding her with arousal fluid.
Squelch squelch—! Shluck—!
"...Hik...!?"
The dick seized the chance, lunging between her legs, shoving its entire body into her vagina.
Slither— Slosh— Then melting into her vaginal walls for absorption.
Stabbbb—!
"Aahngh—!!"
Reforming as a cock on her clitoris.
For the women suddenly sprouting cocks, it was a bolt from the blue—but for humanity as a species, not so bad.
Fused women inherited the man's physical abilities, memories, and skills automatically.
That was the baseline benefit.
- H-honey, come here... If we don't fuse, you'll die... I'll take you in...!
- Dear. I can't make it alone without you. Become one with me and give me strength...!
If the woman accepted or they were lovers with good DNA compatibility, it went beyond mere addition—genetic synergy boosted strength and intellect further.
Thus,
Government and local authorities promoted this absurd human fusion to fill vital male tech roles with dick-fused women.
In this situation... Slosh-...!
"Aahm...-!"
Gulp— gulp—
"Haaa..."
Sion slurped down every drop of semen from the condom she'd just filled.
Smooth-. And promptly pulled something from under her ass.
Ping—!
It was a silicone dildo shaped like an erect cock.
[Jin's Thing ♥]
Not just any dildo crudely engraved—she'd drugged her brother Jinseong's food with sleeping pills and male enhancers, molded it from his cock while he slept.
- Haaa... So my virginity went to our Jinseong? Hehe... And of course, she hadn't forgotten to offer her own virginity to him in the process.
Kang Jinseong thought himself a lifelong virgin, unaware he'd unknowingly claimed the near-perfect woman Kang Sion's virginity.
"I always wanted to feel Jinseong's real thing inside me... Hng... But now we're one body..."
Smooth—... Poke...!
Sion slowly pressed the dildo's glans below her balls against her wet slit.
Poke-.. poke-.. poke-..
"Ung...! Eut!"
Gripping the dildo with both hands, she rubbed it between her outer labia...
-Shlurp—!!
"Haaaang...!!"
With a lewd cry, she rammed it deep into her pussy in one go.
Poke-..! Poke-..!!
Her vaginal walls, soaked and swollen from prior cock play, clung to the dildo's surface.
-Slosh slosh slosh—!
The inner walls kneaded the dildo wildly in an S-curve writhe!
A legendary pussy's motion, but sadly, the cock that could enjoy it was fused to her clit.
Shluck-! Shluck-! Shluck-! Shluck-!
"Haaangh-!! Jinseongaaang—! Jinseongaaat—! Harder—! Fuck sis's pussy harder—...!"
Poke-! Poke-! Poke-!
Sion, legs spread M-wide, mercilessly pistoned the dildo in and out of her secret hole with both hands.
Tok—! Tok—! Tok—!
The dildo's glans repeatedly struck a prominent nub inside.
Smoosh-..! Smoosh-..!
It squished but held its shape—a woman's G-spot, protruding slightly with dense nerves for pleasure...
But not like this electric jolt— Zap— zap—
"Hook...! Ook...! Hngk...!!"
Tears streamed from her eyes, her body convulsing like she'd been shocked.
Smoosh—! Smoosh—!
Now hypertrophied into a lumpy mass, this G-spot housed...
Twitch-..! Twitch-..!
A prostate, the male pleasure zone normally only in the rectum, embedded within.
The cock on her clit had placed the male inner pleasure point—and semen conduit—near her vaginal walls.
Poke-! Poke-! Poke-!
Feels too good...! This is insanely good, gonna lose my mind...!
Even normal pussy play became drug-like addiction.
Twitch-..! Twitch-..!
Linked directly to the cock, vaginal stimulation forced it erect.
"Haooook—!"
Squeak-! Squeak—! Chupoong-!
At her female peak, a fierce squirt sprayed as the dildo popped out.
Her pussy lips fluttered milky satisfaction, dripping pink innards...
But throb..! Throb...!
Her cock, limp post-cum, surged rigid again, veins bulging red.
"Eungh... Eut.. Hehe..."
Thighs still quaking from aftershocks, she smiled slyly and reached for her erection.
"Aang-...!"
The pattern repeated endlessly.
Masturbate the cock into a condom.
When it softens, stimulate the prostate to force re-erection.
No time to eat, but she consumed all the spent semen for energy.
But was pushing limits like this safe?
"Haht... Haht... Jinseong... JinseongJinseongJinseongJinseong—...!"
A fitness nut like Kang Sion might manage.
Crunch—..!
But Kang Jinseong, holed up as a hikikomori on instant food...
Whoooosh— Cruuunch-...!!
Even mere erection in Sion's powerful bloodstream brought excruciating pain.
Good compatibility boosted abilities and size, but...
"Hnguut— Jinseong, you love it too, right? You do, don't you?"
Superior female Kang Sion and mediocre male Kang Jinseong were a poor match.
Crunch..! Crunch..!
Yet the forced growth stemmed from Sion's genetic superiority and her intense lust for him.
"Answer me...!! Answer, Jinseong... Hurry...!"
For Jinseong, fusing with Sion was no blessing...
Ugh... Uuugh... Body feels so heavy...
Jinseong slowly regained awareness.
"Jinseongaaang— Jinseongaaa—!!"
Grrumble—!
By then, Sion milked her cock with both hands toward male climax.
Kkuugh?! Body... body's tearing apart...!
The shock of her over-engorged cock ripping its corpora cavernosa hit Jinseong like his swollen body bursting—
"I love yooouuu— Nngiii...!!!"
——Sploooosh—!!
Kaaaah—!!!
Her ejaculation synced with brain-melting agony for him.