Watching My Cousin Sister Get Fucked
Yong-ho Jo's sex was so brutal it almost felt like violence.
"Hngh!!"
*Slam! Slap! Whap! Whap! Whap! Slam! Slap!* The sounds of flesh colliding were interspersed with wet, sticky friction noises. Conducting that obscene symphony was Yong-ho Jo's muscular lower body, hammering down like a mallet on Yeon-woo Lee's soft, plump ass. His athlete's body—flexible yet powerfully muscled—snapped back dramatically before thrusting forward like an arrow, spearing his long, rigid cock into her with the force of a knight's lance charge. The bullseye, of course, was Yeon-woo Lee's tender, yielding pussy. And in this deep-penetration doggy-style position, his glans relentlessly battered her cervix.
Any ordinary woman would feel more pain than pleasure, but Yeon-woo Lee derived ecstasy from masochistic dynamics...
"Eugh!!"
Her body had frozen in terror at the thought of being caught by her cousin—social suicide right there—but Jo's cock pierced straight through her core defenses. Even knowing her cousin was watching, she couldn't help sticking out her tongue and letting out a strangled scream.
"Uh...."
Cheol-gyu Lee, the cousin witnessing it all, gaped open-mouthed without realizing it. At first, he was stunned. That haughty, uppity cousin sister of his—the insufferable beauty living a chosen life diametrically opposed to his own ugly, unpopular existence, Yeon-woo Lee...
She works here? At an OP??
A cheap whore who spreads her legs for anyone with cash? So her cram school instructor gig was just a front? She worked there to support her broke family, and even moonlighted at night—her uncle, his dad, had praised his niece so much for being such a dutiful girl. And it was all a lie? Not a convenience store night shift, but... fuck, an OP gig, selling her body?
Betrayal and confusion rooted him to the spot as he stood there dumbly, watching his clueless friend fuck his cousin sister raw...
His shock faded, replaced by a hot surge rising from his gut.
That's really Yeon-woo noona? No way...?
He still couldn't believe it, but it was real: his cousin sister Yeon-woo Lee, on all fours like a bitch in heat, getting railed by his friend. And the sight was insanely hot. Her pale back arched like a bow, those slender shoulders trembling precariously between agony and bliss. Her voluptuous ass jiggled helplessly in time with his friend's thrusts.
*Gulp!*
Especially that ass—the fatty glutes rippling like waves with every savage pounding. Cheol-gyu Lee's mind reeled.
"Hngh... ugh! Ugh!"
Yeon-woo Lee's ass and thighs quivered harder under the relentless pounding, her futile efforts to hold back crumbling into that telltale rhythm.
"Heh... this noona feels it so good."
Yong-ho Jo grinned like a predator scenting blood. He broke his steady rhythm, snapping his hips with even more ferocity!
"Eek!"
Her strength sapped by the onslaught, Yeon-woo Lee lost her balance and toppled forward. But Jo showed no mercy.
"Tch! Get up."
*Smack!* As she shuddered face-down like a fallen slave, he whipped her ass to force her back into position.
Is... is that even allowed?
But Jo acted like it was nothing, grabbing her long hair like reins.
"Getting spanked makes you clench even tighter, huh?"
Having already sussed out her kinks with some light spanking, he'd realized he could push further. Yanking her hair like taming a wild horse, he clamped one broad hand on her small head and forced her face toward Cheol-gyu Lee.
"Hey, worth the 400,000 won, right? Fuckin' gorgeous, ain't she?"
"Uh....?"
Jo handled her like a toy he'd bought with his own money. Cheol-gyu Lee's heart skipped.
But...
"....."
He saw it. In the eyes of his cousin sister—forced to look up at him, the ones that always sneered with contempt—there was no disdain now. Just fear.
"...Y-yeah, it is."
A dark, insidious pleasure welled up. That bitchy Yeon-woo Lee, always looking down on him for being short and ugly, the insta-famous goddess with 60k followers—now gripped by a musclebound gorilla, treated like takeout food bought with cash. It gave him a vicarious thrill beyond mere satisfaction.
*Smack!*
"Hngh...!"
Once more smacked like a lowly slave, she couldn't even meet his eyes this time, averting her gaze meekly. She wasn't the one making him cower anymore—now she feared him. At that realization, Cheol-gyu Lee felt a sticky bead form at his cocktip.
Originally, Yeon-woo Lee had been an ordinary girl. Spoiled rich kid under a doting dad, a bit of an arrogant bitch, sure—but sexually, she held the same vanilla notions as any normal woman. Not some sex-crazed slut from the start; she'd just fished for attention with her looks, posted skin-baring selfies on Insta for likes, dated average guys with average tastes, and had average sex.
But selling her body eroded those deep-rooted societal norms and taboos, her shame melting away like thinning ice. As the thick frozen lake surface thawed, the murky depths beneath came into view—and Yeon-woo Lee grew ever more honest with her inner self through prostitution, bolder and more uninhibited.
But...
No, I hate this...!
For the first time in ages—like when she'd taken her very first client and sold her virginity—she felt humiliated.
Just fucking in front of her cousin was mortifying enough to die over, but even worse? Cumming like a beast in front of him, unable to hold back.
Fucking monkey bastard, don't look!
But she couldn't say it. Alone with Cheol-gyu Lee, she'd have slapped him silly and screamed him down. A cocky little shrimp shorter and weaker than her? Easy prey. But with this gorilla buddy tagging along... she couldn't expose herself.
So she averted her eyes from the perverted monkey sporting a rock-hard boner aimed right at his cousin sister.
But Yeon-woo Lee—who'd been moaning like a whore in heat just the two of them—suddenly tensed up, body rigid and passive, even stifling her moans... That only piqued Yong-ho Jo's interest.
Oh, does she get tense and turned on with an audience?
Impossible not to misread it that way. Though rigid with tension, her pussy clenched way tighter than before. Even Jo's insane stamina was tested by that handjob-like grip, chewy and vise-tight. Plus (thanks to her cousin's gaze), her pink nipples stood stiff as ever.
So for the friend who'd shelled out 400,000 won, Jo wanted to let him play with this exhibitionist slut a bit early.
"Uh....?"
Jo's iron-bar arms seized Yeon-woo Lee's slender wrists, yanking them back. Her upper body was hauled upright by brute force.
No longer on all fours—this was upright doggy, her torso erect. Right in front of Cheol-gyu Lee, already clutching his crotch in horny agony at the sight of his sister getting fucked: her massive tits and tiny waist on full frontal display.
Yeon-woo Lee twisted in panic, but there was no escaping the hydraulic grip of a judo athlete.
"S-stop... d-don't... mmpf!"
She tried protesting the sudden exposure, but Jo's bear-paw hand clamped her mouth shut. His other arm hooked under her armpit, squeezing her huge breast to pin her in place. Then, using thighs thicker than her waist, he thrust upward* from below, slamming his already-buried cock even deeper.
*Squish! Squish!*
Jo's monstrous rod at a 45-degree upward angle, loaded with his full body weight, speared her womb. Mouth sealed, she couldn't even scream—her naked body writhed like a salted loach. And as her pale, smooth nude form convulsed, so did her massive, milky tit-dispensers, bouncing wildly every which way.
"Clenching harder with an audience, huh? Yeah? Gets you hotter when someone's watching?"
"Mmmph!!"
"Don't lie—what's that review say? Some other guy watched and you squeezed like crazy from the excitement."
She shook her head desperately at Jo's 'misunderstanding,' but he dismissed every twitch as meaningless female fussing.
And Jo was a man's man, loyal to his bro. He beckoned Cheol-gyu Lee, who stared entranced.
"Hey, wanna feel 'em?"
"Wha...?"
"....?!"
A beat late on the reply. Yeon-woo Lee thrashed her head no, but her muffled plea vanished silently.
"You're gonna fuck her soon anyway, right? Go ahead, cop a feel first. Fuck, these are prime natural Gs. Insane."
"....."
At his friend's words, Cheol-gyu Lee's eyes instinctively dropped to her tits. The perfect breasts he'd only fantasized about, pink nipples stiffly erect.
But then his gaze shifted to her face. There, terrified and tearfully humiliated, was his cousin sister.
"I-I mean..."
"Huh? What're you waiting for? You're doing it later anyway."
Cheol-gyu Lee hesitated... then squeezed his eyes shut.
And reached out, for the first time, to grope his cousin sister's silky-smooth breasts.