[First Story] The Hikikomori and My Perfect Sister - Parasite Play, Penis Creation Warning!
She thrust out her arm without a hint of hesitation, snatching up my cock-transformed body and yanking me toward her.
...S-Sis is... grabbing me? My dick!?
Squish-!Squish-!
Startled, I instinctively tried to slip free from her fingers, but...
Grip-! ...Urk!!? I-It hurts!
I couldn't escape the iron grip clamping down like it would never let go.
Plop-Splat..!
Sion soon placed my dust-covered body in her palm.
"Jinseong... why were you hiding? If it wasn't for the security camera, I might not have found you."
She spoke with her usual smile crinkling her eyes and mouth, but the black pupils peeking through those curved slits were unfocused and dull. It should have been the warm sister I always knew... but for some reason, her smile now looked utterly chilling, like an iron mask.
"Yeah. You need a wash first, right, Jinseong?"
Twitch.. Instead of answering, I trembled in fear.
"Hehe—good boy."
She took that as agreement and carried me to the bathroom.
Step- Step- Step-
As Sion walked through the living room, I quickly scanned the house. Through the balcony window, a room that should be bright with daylight was pitch black. On the kitchen table sat a box labeled 'Emergency Relief' next to scattered tuna cans and such.
That sparked a thought. Maybe some disaster had hit the region, the country—or the whole Earth—and my transformation into a dick was part of it. It sounded like otaku delusion, but I couldn't dismiss it entirely. I'd actually turned into a cock, and now my sister—who seemed off somehow—was dragging me away. What else could happen that would surprise me? What if I wasn't the only one who'd become a dick...?
By the time those thoughts hit, we'd reached the bathroom.
Shhh-...
"Power's out, but at least the water came back quick. Now I can wash my Jinseong like this, right?"
Sion kept mumbling as she washed my shaft and balls with soap and running water.
Squish— Squish—
She started with the squishy balls on either side, then meticulously cleaned the ever-erect rod, the mushroom ridge under the glans—every inch with her slender fingers. Her delicacy made me wonder if she'd practiced on some guy's dick before, but...
"Haaah..."
Soon, her cleaning skills didn't matter anymore.
"Hah... haahk..! Jinseong's... thing!"
Breathing raggedly, eyes bloodshot with excitement, she kept rubbing my cock with her hands. Long after it was clean, over and over!
...It stings! Sis, it stings!!
I writhed in agony, as if my skin might peel off, mentally screaming at her. It was the only way I could communicate without a voice.
"...Ah! Sorry!"
As if snapping out of it, she hurriedly turned off the water and brought me to her face.
"Did it hurt a lot, Jinseong?"
Her eyes looked sad and worried. Hoping her sanity had returned, I cautiously lifted my head—
Smooch-
"It's because Sis loves you so much... you have to understand, okay?"
Seeing her kiss my legs—or rather, my balls—I realized I was wrong. She was still off, and maybe this was her true self. So what would she do next? My focus narrowed to her actions amid the surging unease.
Step- Step-
She dried me with a towel and carried me back to the living room like a treasure.
Thud.
Sitting on the sofa, she gently set me on the table.
Squish-..
From her warm hand to the cold table, my tension spiked again. What was her goal? Should I move or stay still? Like a hedgehog, I huddled with my head down, watching her.
— 1. All men on Earth have turned into cocks...
The black ink handwriting on the white paper beneath my body caught my eye. Neat with a slight flourish—it was unmistakably Sis's script.
"You must be freaking out, huh?"
Stroke. Stroke.
Her hand gently petted me.
"Power goes out completely—your body turns into a cock... and you can't even speak."
...She definitely knew something. Even without reading it all, I could sense the paper explained what happened to me and the crisis.
"The TV was off the whole time... but it flickered on this morning. They explained the situation..."
Her calm voice began the tale.
"All the men on Earth turned into cocks."
Incredibly, it wasn't just me. Every man on the planet had become a dick!
"Half of humanity vanished in an instant. Chaos everywhere..."
According to her, key industries full of male workers collapsed into pandemonium.
"Gas leaks blew up factories, and some countries ground to a halt."
It made sense. Imagine reactor workers or hazard site staff turning into cocks—not just their bodies, but the facilities themselves dicked out.
"...But they had a quick recovery plan."
...A plan?
Her bright smile piqued my curiosity amid the dread. Half of humanity—all men—gone, and a fix?
"Men turned into cocks instinctively know their lifespan and seek out women to parasitize... and women who get parasitized by a cock..."
Sion paused, staring at me intently.
Squish-..
She slowly gripped me, her eyes unfocused again.
"...gain the cock's memories, physical abilities, and everything else."
Lick-..
She licked her lips as she said it, like savoring the taste! Was she seriously planning to let me parasitize her—her own pussy? Why?! I was a shut-in loser, bullied dropout, virgin NEET with zero athleticism from rotting at home. What could a perfect goddess like her gain from a dud like me!?
"The second I heard, I panicked. What if some bitch stole my Jinseong...? Grind!"
Grip-! ...Guhk..!! S-Sis, I'm gonna burst..!
Her unprecedented curse and crushing grip flashed death in my mind.
"Oh! S-Sorry..."
She noticed my reddened state, calmed her excitement, and released me.
"Anyway, you're safe now. Back in Sis's arms... hehe."
Stroke- Giggling, she stood and slowly lowered her skirt.
White thighs and sleek legs emerged...
...!
She'd been like a real sister since high school, but those firm thighs and slender calves glued my gaze as a male. Or maybe being a parasitic monster amplified it.
Gulp-!
My brain screamed not to look, but instinct drew my eyes to the secret spot between her thighs...
Squelch..-
As she thrust her hips forward, her damp crotch came into view.
"I tidied up down there in case we might do it someday... like it?"
Twitch.. Twitch..
Her pussy was bald from the outer labia and pink clit, with only a soft patch of black pubes above—like an AV star's perfect grooming.
...A real... pussy!
For a moment, I forgot it was my sister's and stared intently.
"Hehe—good. I'm thrilled you react like that..!"
...React?
...Wha?!
Throb..!
A heat surged through me, and my reflection on the glass surface showed... full erection? My semi-stiff state had ballooned, veins bulging, glans taut.
"Haaa... let me show you closer..!"
The cause? Her pussy, inching nearer as she spread her crotch.
"What do you think, Jinseong? Like Sis's here?"
Her fingers parted the milky labia, revealing pink innards.
Pulse- Pulse-
The small hole, lined with grains like gears, clenched and relaxed—
Squelch- Drip.. Drip..
Transparent honey-like nectar oozed, wafting a sweet, musky scent that tempted me.
...F-Female... hole..!
Squish—..! Squish—..!
Enchanted, I waddled on my balls toward her hole...
Stroke— My rigid shaft and glans approached her pink secret like a battering ram...
Squelch—Poke!
The glans touched her slick entrance.
...Huh?
That wet sensation snapped me awake. What was I doing? Blood or not, she was my only family—my sister. Even like this, how could I commit incest by poking her pussy with my dick!?
"Haa.. haa.. come on in, Jinseong. Into Sis... now!"
Her lewd pants urged me inside.
Splash-..!
Excited, nectar splashed from her entrance against my glans.
Poke-.. Poke-..
Her hip wiggles ground the pulsing slit against me, soaking my head.
...Aah..!
(I learned later: cock-state beings lose all but the 'parasitize' instinct upon touching a woman's hole or fluids.)
"If you don't enter, you die! You'll die... so become one with Sis, Jinseong!"
She must have known. My guess, anyway.
...Parasitize! Parasitize! PARASITIZE..!! On a female!!
Squish-!
Rationality gone, I kicked off my balls, thrusting my shaft forward.
Squelch—-!
"Haaaang..!!"
My glans cleaved her soaked folds, burrowing inside.
"Sis is so happy..! Giving my first to the brother who brought me to life... my head's going crazy with joy..!!"
Squish—..! Squish—..!
Her ecstatic moan came with swollen, massaging walls kneading my half-buried shaft.
...I took Sis's virginity..!
Guilt and male triumph halted me—
Poke-.. Drip—!
Thick pink nectar drenched me from all sides.
...Parasitize..!
A mysterious voice filled my head again. Pressure built from my toes to my tip—
Gush—!Spurt—!Psssh—-!!!
I blasted milky fluid through my shaft!
Splat—!Squish—!
“Ahhaak..!! Ahhuk..!! J-Jinseong's cumming inside me!”
The paralytic lube relaxed her vaginal muscles and numbed her body, preventing resistance!
"...Hik?!"
She yelped sharply, freezing as paralysis hit. Her vibrating walls stilled.
-Poke poke poke poke—!!
...Parasitize!! Parasitize!! PARASITIZE!!
Pure instinct now, I shook my glans and shaft side-to-side, burrowing deeper into the loosened vagina.
-Squelch—!
In a flash, my entire shaft except the balls was engulfed...
..Parasitize!!
Push—-!!
Not stopping, I shoved harder inside—
Sloosh—!!
Even my two balls slipped in.
Her hole wasn't huge, nor were my balls tiny.
Poke-.. Poke—.. Squish-..!
Yet they fit thanks to the paralytic—her vaginal relaxant had loosened her up.
Squish-.. Squish-..
Trapped amid the throbbing, engorged walls,
Melt...
I began dissolving into liquid.
Shlorp-..!
Absorbed into her vaginal walls.
=====
"Haaaang—.. Hakkuuk..!!"
Paralysis fading, Sion trembled her spread thighs, moaning from her spread crotch.
"Aah— I f-feel it.. becoming one... with my beloved Jinseong..! Haaat..!!"
Not just insertion. Her clitoris's pink grains hardened—
Crunch..! Crunch..!
Liquid from inside transmitted, veins bulging—
—CRRRUNCH—!!!
"Aaaah..!!"
Her clit thickened and lengthened—
Crunch— Jiggle—!
To 14cm, a thick pink sausage, with two jiggling balls below.
"Haak.. haak.."
Round glans, veiny shaft, heavy balls. Minus the pink hue, a perfect cock—exactly like I'd been.
"Aaaah— everything..! All of it flowing in! Jinseong's thoughts. Memories. Even his soul becoming one with me..!!"
Sion's mad voice burst out as
Shoo-..!
Smoke rose from the cock-shaped clit, its color shifting to match her skin.
Wobble-..!
Now perfectly fused to her—a true Sion cock. No, Jinseong.
"Jinseong— Jinseong-Jinseong-Jinseong-Jinseong..!!"
Cupping her cheeks, lost in mania, calling his name.
Gurgle—!! Gurgle—!
Liquid boiled inside the balls—
Squelch—- Drip..
Voracious nectar dripped from the pussy below.