AUCTION

The late afternoon sun slanted through the floor-to-ceiling windows of the executive suite, casting long golden stripes across the polished mahogany desk. The city hummed far below, but up here on the 42nd floor, the only sounds were the low whir of the air conditioning and the occasional click of heels on marble.

Elena adjusted the hem of her tight black pencil skirt for the third time, her heart hammering against her ribs. At 24, she had been working as personal assistant to her brother-in-law, Marcus, for six months now. Her older sister, Sophia, had insisted it was the perfect opportunity—good pay, flexible hours, and a chance to “learn the business.” What Sophia didn’t know was how dangerously tempting Marcus had become.

Marcus was 38, broad-shouldered and commanding, with salt-and-pepper hair that made him look distinguished rather than old. His wife, Elena’s sister—had been traveling for work more and more lately, leaving him alone in that massive penthouse. And leaving Elena alone with him in this office after hours.

“Close the door, Elena,” Marcus said without looking up from his laptop. His voice was deep, velvet-rough, the kind that always sent a forbidden shiver down her spine.

She did as told, the soft click echoing like a secret being sealed. The blinds were already drawn on the glass walls facing the open-plan floor outside. They were completely isolated.

“You wanted to go over the Q3 projections?” she asked, trying to keep her tone professional even as heat pooled low in her belly. She approached the desk, clutching her tablet like a shield.

Marcus finally looked up. His dark eyes raked over her slowly starting at her red-painted lips, sliding down the crisp white blouse that hugged her full breasts, lingering on the way the skirt clung to her hips and thighs, then back up again. “Projections can wait.”

He leaned back in his leather chair, loosening his tie with one hand. “You’ve been teasing me all day, little sister-in-law. That skirt. Those heels. Bending over the filing cabinet like you wanted me to notice how perfect your ass looks when it’s presented like that.”

Elena’s breath caught. They’d danced around this for weeks—stolen glances, accidental touches, loaded comments when no one else was around. But tonight felt different. The air crackled with raw, filthy need.

“I… I don’t know what you mean,” she whispered, but her nipples had already tightened into hard peaks beneath her lace bra, visible if he looked closely enough. And he was looking.

Marcus stood, towering over her. He circled the desk like a predator, stopping just inches away. The scent of his cologne woody, expensive, masculine wrapped around her. “Don’t play innocent, Elena. I see the way you watch me when Sophia calls. The way your thighs press together when I praise you for a job well done. You’re dripping for your sister’s husband, aren’t you?”

His hand came up, thumb brushing her lower lip, parting it slightly. Elena’s tongue darted out instinctively, tasting the salt of his skin. A low groan rumbled from his chest.

“Fuck,” he muttered. “Such a dirty little slut under that good-girl facade.”

Before she could respond, his mouth crashed down on hers. The kiss was hungry, demanding, just raw possession. His tongue invaded her mouth, stroking, claiming, while his big hands gripped her waist and pulled her flush against him. She could feel the thick, hardening length of his cock pressing against her stomach through his trousers.

Elena moaned into the kiss, her hands fisting in his shirt. Months of suppressed lust exploded between them. She ground against him shamelessly, her pussy already slick and aching.

Marcus broke the kiss only to trail his lips down her neck, sucking hard enough to leave marks. “Sophia’s never going to know how much her baby sister craves getting fucked by me,” he growled against her skin. “How you’re going to beg for my cock while she’s at her conference.”

He spun her around suddenly, bending her over the wide desk. Papers scattered. Her breasts pressed against the cool wood as he yanked her skirt up over her hips in one rough motion, exposing the tiny black thong that disappeared between her round ass cheeks.

“Look at this,” he said, voice thick with lust. His palm cracked against her ass, the sharp smack making her yelp and then moan. “Wearing something this slutty to the office. Were you hoping I’d rip it off?”

“Yes,” she gasped, pushing back against his hand. “God, yes, Marcus. I’ve been so wet thinking about you all day.”

He hooked his fingers in the thong and tore it down her legs, leaving it tangled around one ankle. His fingers slid between her thighs, finding her soaked folds. “Jesus Christ, you’re drenched. This tight little cunt is weeping for your brother-in-law’s dick.”

Two thick fingers plunged inside her without warning, curling to stroke that sensitive spot that made her see stars. Elena cried out, hips bucking back as he finger-fucked her with filthy precision. The wet, obscene sounds filled the office—squishing, slapping, her juices coating his hand.

“You like that, huh? Being used like a whore on my desk.” He added a third finger, stretching her. “Imagine if someone walked in right now. Seeing you bent over like this, pussy spread for me.”

The thought sent a fresh gush of arousal down her thighs. Elena was beyond shame now, only pure, burning need. “Please… fuck me. I need your cock inside me.”

Marcus chuckled darkly, withdrawing his fingers. She heard the zip of his trousers, the rustle of fabric. Then the hot, heavy weight of his erection slapped against her ass. He was huge—thick, veined, the head already leaking precum.

He rubbed the fat tip up and down her slit, teasing her clit until she was whimpering and grinding desperately. “Beg properly, Elena. Tell me what you are.”

“I’m your dirty little sister-in-law slut,” she panted, voice breaking. “I want my sister’s husband to ruin my pussy. Please Marcus, fuck me hard.”

With a guttural groan, he thrust into her in one powerful stroke, burying himself to the hilt. Elena screamed in pleasure-pain, her walls clenching around his massive girth. He was so deep, stretching her in ways no one ever had. The desk creaked under their weight as he started pounding into her, hips slamming against her ass with brutal rhythm.

“Fuck, you’re tight,” he grunted, one hand fisting her hair to arch her back while the other gripped her hip hard enough to bruise. “Taking every inch like you were made for this. Made for cheating on your sister with my cock.”

Each thrust drove her forward, her tits bouncing inside her blouse. Marcus reached around to rip the buttons open, yanking her bra down so her heavy breasts spilled free. He pinched and twisted her nipples, sending jolts of electricity straight to her clit.

The office filled with the sounds of raw, animalistic fucking—skin slapping skin, her moans turning into broken sobs of ecstasy, his filthy dirty talk.

“Such a greedy cunt. Sucking me in like it hasn’t been properly fucked in years. Does Sophia’s husband feel better than whatever pathetic boys you’ve had before?”

“Yes—oh god, yes! Harder, please!”

He obliged, fucking her with savage intensity. Sweat slicked their bodies. Elena’s legs trembled, her orgasm building like a tidal wave. Marcus sensed it, reaching down to rub tight circles on her swollen clit.

“Cum for me, you filthy girl. Cum all over your brother-in-law’s cock while your sister is thousands of miles away.”

The words pushed her over the edge. Elena shattered, her pussy spasming violently around him as she came hard, gushing wetness down his shaft and thighs. Stars burst behind her eyes; she screamed his name loud enough that she was glad the office was empty.

Marcus didn’t stop. He fucked her through it, prolonging the pleasure until she was a quivering mess. Then he pulled out suddenly, flipping her onto her back on the desk. Her legs fell open wantonly, pussy red and glistening, still pulsing.

He stood between her thighs, stroking his glistening cock. “Look at the mess you’ve made. Now you’re going to clean it up with that pretty mouth.”

Elena slid off the desk onto her knees without hesitation, eager and shameless. She took him deep into her throat immediately, tasting herself on his thick length. Marcus groaned, hands tangling in her hair as he fucked her face. Saliva dripped down her chin, mixing with tears of effort as she gagged on his size.

“Good girl. Suck your sister’s husband’s cock like the cock-hungry slut you are.”

She hollowed her cheeks, swirling her tongue around the head, worshipping every vein. His balls drew up tight. With a growl, Marcus pulled out and painted her face and tits with thick ropes of hot cum—streaks across her cheeks, lips, and heaving breasts.

Elena licked what she could reach, eyes hazy with lust.

But he wasn’t done.

Marcus pulled her up, kissing her cum-smeared mouth deeply. “We’re not finished. Bend over the window.”

He positioned her against the glass, breasts pressed to the cool surface overlooking the glittering city. Anyone with binoculars might see, but neither cared. He entered her again from behind, slower this time, savoring the slick heat.

They fucked for what felt like hours—against the window, on the couch, even with her riding him in his chair, grinding down until she came again, screaming. He filled her pussy with a second load, then made her sit on his face so he could eat his own cum out of her while she trembled through aftershocks.

By the time they collapsed, sweaty and spent, the office reeked of sex. Elena’s clothes were ruined, her makeup smeared, body marked with bites and handprints.

Marcus pulled her close, kissing her forehead almost tenderly. “This stays between us. But tomorrow… wear the red dress. No panties.”

Elena smiled, already aching for more. “Yes, sir.”

As the city lights twinkled below, the forbidden fire between them had only just begun to burn.