Sister's Jealous Rage Erupts
"Anything you want, anything you wanna eat. I'll buy it all for you, sis."
[Seo-ah's perspective]
"Why spend so much on just one watch?"
My cute little brother. He was still fidgeting, staring down at his wrist.
"Hey, Yoon Seojun. I'm a professor. With my salary, grants, and research funds, I've got money to burn. Don't worry about it."
"Still…."
Seojun furrowed his brow. A deep sigh escaped him.
"Even so, spending your money like this on me…."
[Seojun's perspective]
'Huh?'
Sis's shoulders twitched sharply. The life drained from her wine-colored eyes.
They dulled, losing their spark, in a way that was downright eerie. Unnaturally slowly, they turned toward me.
"My money…?"
A voice so chilling it raised goosebumps.
Seo-ah's breathing hitched. Her pupils trembled faintly. Words leaked from between her bitten lips.
"What is my money…?"
Did I say something wrong? What did I mess up?
"S-Sis, what's wrong? Did I do something bad?"
I fumbled to open my mouth, desperate to figure out what switch I'd flipped.
Gurgle gurgle glurk!Squiiish—!
From inside Sis's skirt. The sound of her mucous membranes frothing up.
Anxiety. Panic. Her aroused womb spewing fluids like a defense mechanism.
Tears welled up in her wine-colored eyes.
"Does that mean you and I are just strangers?"
Plip plop.
Tears finally spilled over.
'Ah.'
That was it.
"S-Sis, wait. That's not what I—"
"Then what is it?!"
Seo-ah shrieked. Passersby turned to stare.
"You cum inside my womb like that! Our bodies fit perfectly!"
People gasped, clapping hands over their mouths. This was insane.
"And now you draw a line?! You fuck my pussy raw, and now my money is a burden?!"
"No!! Stop!! Sis!!"
I lunged forward, hand outstretched. I had to shut her mouth before more madness spilled out.
"I get it. You're trying to dump me! Draw a line so you can go fuck some other bitch!"
"No!! That's not it!!"
I cupped her tear- and snot-streaked cheeks. Like a trainer soothing a wild beast. I locked eyes desperately.
"I just felt bad seeing you strain yourself for me! How could I ever abandon you?!"
I wrung my stalled brain for words.
"Your money or mine—what's the difference?! We've had sex! What's yours and mine anymore?!"
Hah. That was the best I could come up with?
Talking about fucking in public. But… it worked.
"…!"
Her trembling pupils steadied. The spasms on her face eased.
"We're… all mixed together…."
I hammered it home through her ragged breaths.
"So no lines drawn. I'd never abandon you."
Silence. Only scattered gasps of shock lingered.
Seo-ah sniffled. She roughly wiped her cheek with the back of her hand.
Color flooded her face in an instant. Back to her usual haughty expression.
"Hmph."
She smirked, lips curling petulantly.
"That's more like it."
Shameless. Hard to believe this was the same woman bawling seconds ago.
"From now on, don't hold back. Tell me everything you want."
Sis hooked her arm through mine again. Tightly. Pressing her tits even harder against me than before.
She strode off triumphantly, dragging me along.
"Anything you want, anything you wanna eat. I'll buy it all for you, sis."
Her wine-colored eyes looked up at me, blazing with possessiveness.
Bubble bubble!Pffft.
Down below, she bubbled over with pleasure foam.
"You're gonna spend your life filling my pussy with your cum. Got it?"
A filthy proposal. And a threat.
"Haha…."
A hollow, soul-drained laugh escaped me.
The watch on my wrist felt impossibly heavy.
But what could I do? She was my sis. My only family.
[Seo-ah's perspective]
"Heh, hehehe…."
I couldn't stifle the leaking laughter.
My man's hand. Laden with shopping bags.
A sturdy male hauling prey for his female. Payment was on my card, but who cares.
Smoosh.
I mashed my tits firmly against his arm.
"Sis. Can't you walk a little apart?"
Seojun whispered, ears turning red.
"What's wrong with it? That's how couples walk."
I shot back brazenly. I clamped his arm even tighter.
Seojun's left wrist. The watch gleamed beautifully.
My man, wrapped in my money. My male, drenched in my scent.
Slosh.Squelch crick….
Deep in my lower belly. Lewd sounds tickling my ears.
My womb fluttered happily.
'I love this too much.'
His cum filling my pussy. I wanted to strut and brag to every female in the world.
Aah, so happy. Who could possibly shatter this bliss?
That's when it happened.
"Huh? Is that Seojun?"
A voice so bright it made me nauseous.
I froze. Seojun's shoulders jerked too.
"Uh…? Oh, hey."
Seojun greeted her awkwardly. Toward the bitch approaching, waving cheerfully.
'That fucking slut.'
The one who'd wagged her tail at my brother days ago. The fiery cheap whore.
My vision flashed red. Before reason could catch up, my body sensed the threat first.
'Urk…!'
Like ice water flooding my womb.
My vaginal walls clenched furiously.
Gurgle glurk!Squelch!Squish crick!!
"Eut…!"
I clamped my thighs reflexively.
The mucosa napping with my brother's semen inside. Thousands of folds bristled with venom all at once.
'He's mine.'
'My male.'
Bubble. Bubble bubble!Pffft!!
My pulsing entrance gnashed at empty air. Milky, turbid fluids spewed from between my labia.
Jealousy. Possessiveness. Thick, repulsive warning juices.
My crotch soaked through in seconds. Melted cheese-like globs trickled down my thighs.
Killing intent.
'Should I just kill the bitch?'
My eyes burned hot.
[Seojun's perspective]
This is driving me crazy. Why here, of all places.
"Hey! We keep running into each other!"
My classmate Sujin. Approaching with a bright smile.
The distance shrank. Her lifespan felt like it was too.
Sis's grip on my arm. Brutal strength poured out unchecked.
My bones might shatter.
"Uh… y-yeah. Just, uh, looking at clothes."
I dodged her eyes, mumbling vaguely.
We had to get out of here. I could feel Sis's mental state crumbling through my arm.
Squeeze.Squelch slurrrp.
From Sis's skirt. Sticky friction sounds battered my eardrums.
Killing intent. Heat. The horrific hybrid stirred again.
That's when—
"Huh? And who's…."
Sujin's gaze shifted to Seo-ah.
Her eyes went wide.
"Professor Yoon? Professor! Hello!"
Sujin bowed deeply in panic.
"……."
Silence.
I glanced sideways. Sis was forcing a twitchy smile.
"Yes. Hello, student."
Her wine-colored eyes dripped malice.
"You're doing well on the last assignment… right?"
Flat tone. But below, it was chaos.
Slosh! Slosh!!Splurt!Squiiiish!
Convulsions. Her womb thrashed wildly.
Imagining gnawing my cock, probably. Spitting out grotesque contractions nonstop.
"Y-Yes! Of course! I'll revise and submit by Monday!"
Sujin answered stiffly, frozen.
'But what's that sound? Water somewhere?'
Her lips mumbled softly. Then she glanced between us.
"Oh, you two know each other?"
Ah. Dumbass. Why pry when you could just pass by.
"Uh… yeah. She's my sister."
I forced a grin.
"Whoa! No way!"
Sujin gaped, clapping delightedly. Hopelessly sunny and oblivious.
"OMG, you're siblings? That's so cool! I knew you looked kinda similar!"
Sujin sparkled, launching into chatter. Cold sweat trickled down my spine.
We're screwed. I could feel it. The fuse on the Yoon Seo-ah time bomb beside me had burned out.
"Professor, I'm so jealous~!"
No.
"My little brother ignores me at home."
Please shut up.
"Seojun shops with you and is so sweet at school! Wish mine was like that!"
Boom!
'Ah.'
It finally blew. My sister did.
[Seo-ah's perspective]
What? My brother is sweet?
'Who the fuck are you to judge my Seojun?'
My fingertips trembled. Venom surged through my veins.
'What have you done with him to rate him?'
Something snapped in my head.
'Has Seojun ever pounded your pussy full of cum?!'
'Crushed your womb tip with his glans, whispering he'd move slow so it doesn't hurt?!'
Squish crick!!!Riiip!!!
My vaginal walls bloated and clenched like they were tearing.
Milky, sticky fluids gushed down my calves.
Inside my skirt was beyond soaked.
She doesn't know. How tender my man is.
Bringing cooling gel at dawn so my pussy doesn't chafe. Wiping my piss himself.
Only I know. Only my womb knows how good he is.
No. Only I should know.
But this mere human bitch dares lick her lips at my male?
Crunch.
A vein bulged on my forehead.
"Siblings?"
Ice-cold words shot out.
Squeeze.
I yanked Seojun's arm brutally close.
"S-Sis…?!"
His pale voice called. But I didn't hear.
I just tilted my chin up, glaring down at the slut.
"You think we're just siblings?"
"Huh…?"
The bitch blinked stupidly.
I twisted my lips into a sneer.
Boiling superiority. Arrogance. I spat the truth.
"We're way more than that."
"Eh? More than that? Well, family's close, so obvi—"
Her idiotic dodge. Time to ram facts down her throat.
Into territory she could never touch. Etch our cum-and-pussy-forged bond into her bones.
Reason flipped. My frothing pussy commanded. I surrendered my soul.
"We."
I inhaled deeply. Bellowed to shake the heavens.
"We fuck every day…."
[Seojun's perspective]
"We fuck every day…."
'I'm losing it!'
My mind went blank. No time to think.
I slapped my hand over Sis's mouth.
"Mmph!! Mmph!! Mmmph!!!"
In my palm, Seo-ah thrashed wildly. Even baring teeth to bite my fingers.
A rampaging demon.
"S-Seojun? P-Professor, what's…?!"
Sujin backed away in terror.
Passersby's stares pierced us.
Done for. Social suicide.
A professor confessing incest to a student. I forced a friendly grin. Sweat poured like a waterfall from my brow.
"Ha, hahahaha!! Whew, my sis is something else! She pounded drinks at lunch and must be wasted!!"
"Lunch drinks?!"
"Yeah! Weirdly chugged booze with lunch. Guess that's it, haha!"
Word vomit nonstop.
[Mmph!! Let go!! That bitch!! Her pussy's never tasted Seojun's cum!!]
Through my finger gaps, Sis mangled the words fiercely.
Thank god. Slurred enough not to be clear.
But the madness? 100% transmitted.
"Haha! Catch you later, Sujin! Gotta go!!"
My free hand wrapped her waist. I dragged her away.
[Aaah! Let go!! Let me goo!!]
"Sorry! Coming through!"
Through the murmuring crowd's shocked glares, I hurled us toward the emergency stairs.
My spine chilled. A second later, and our school forum would've been plastered with "Professor Yoon Seo-ah, Incest with Brother."