James nervously adjusted his tie as he glanced over to his coworker, Samantha, sitting across from him in the cab. Her long dark hair fell in soft waves over her shoulders, contrasting against the white silk of her blouse. He couldn't help but let his gaze linger for a moment too long on the subtle curve of her ample cleavage peeking out from her partially unbuttoned top.

James quickly averted his eyes, hoping she hadn't noticed his ogling. He was only human, after all. And damn, was Samantha fine. He had been secretly pining for her for months now, ever since they started working together on the same marketing team. The way her full lips curved into an easy smile, how her green eyes sparkled with intelligence and wit. It took every ounce of his willpower not to imagine what those lips would feel like wrapped around his cock.

But alas, they were both married. Happily so, or so it seemed. The shiny gold bands on their ring fingers were a constant reminder of the unspoken boundary between them - that of coworkers and friends, nothing more. Still, James couldn't suppress the flutter of excitement in his chest as they arrived at the hotel for the annual business conference. Three days in close quarters with the object of his desires? It was almost too delicious a temptation to resist.

The conference itself passed in a blur of PowerPoint presentations and networking mixers. James found himself seeking out Samantha's company at every opportunity, laughing at her clever quips, letting their hands brush as they exchanged business cards. By the final dinner, he was practically drunk on her proximity alone.

As the awards ceremony wrapped up, Samantha turned to him with a coy smile. "Want to grab a nightcap in the hotel bar? I could use a real drink."

James' heart raced at the suggestive look she gave him. "I thought you'd never ask."

They sipped their whiskey, bodies angled toward each other as they chatted about the conference. James' eyes kept drifting to her wedding ring, glinting in the dim light. Samantha seemed to notice his gaze and casually pulled the band off, setting it on the bar.

"I'm not much of a ring wearer," she said with a shrug. "Don't want to leave a tan line on my beach vacation next week."

James' mouth went dry. Samantha was gorgeous with or without the ring. He quickly downed the rest of his drink, signaling the bartender for another round with a shake of his glass.

When he went to grab a napkin to wipe the condensation beading on the outside of his highball, he impulsively hid his hotel room key card in it. Heart in his throat, he slid the napkin across to Samantha.

She took it, one perfectly sculpted eyebrow arching up. Her red lips curled into a secret smile as she met his heated gaze. Then she tucked the napkin into her purse and stood.

"I'll have to sleep on it," she said ambiguously. "See you later, roomie."

Feeling rejected, James went up to his room. He jumped in the shower to wash up before bed. Standing there as the hot water cascaded on his naked body, his mind conjured up increasingly filthy fantasies of all the things he wanted to do to his sexy coworker. He wanted to worship every inch of her, drink from her sweet mouth and pussy until she was hoarse from screaming his name. Christ, he couldn't remember the last time he'd been this pent-up.

Finally, he gave in and took himself in hand, stroking his thick length as he imagined it was Samantha's mouth bobbing up and down his shaft. He brought himself right to the edge, only to back off at the last second, not wanting to find release before he even knew if she would show.

James cleaned up and threw the hotel robe on, arranging himself on the bed in a way he hoped looked enticingly casual rather than desperate. He picked up the TV remote, pretending to flip through channels, though he could barely focus on the screen.

An eternity seemed to pass. James had just about convinced himself that he'd been a fool to think Samantha would actually come - that she must have thought he was crazy for leaving that key - when he heard the soft click of the door opening.

His head whipped around and he surged to sitting. Samantha stood there in the hotel robe as well, her cleavage peeking out from the deep V of the neckline. Her eyes were dark and hooded as she locked the door behind her and began to stalk toward the bed.

James' cock jumped under his robe. "You came," he said stupidly.

"I'm here," she agreed, perching on the edge of the mattress. She reached for his hands, lacing their fingers together. "I have to be honest, I've wanted this for a while now too. Wanted you."

James swallowed hard, his mouth suddenly bone dry. "Fuck," he breathed. "Samantha."

She brought his hands to her face, guiding them to cup her cheeks as she leaned in to kiss him. It was electric, her soft lips molding to his as she let out a little moan. James tangled a hand in her hair, angling her head to deepen the kiss.

When they finally broke apart for air, Samantha stood and untied her robe in one smooth motion. The garment slid off her shoulders to pool on the floor, revealing her naked body in all its glory. James drank in the sight of her - the heavy swells of her breasts, her concave stomach, the neat thatch of hair at the apex of her thighs.

"Like what you see?" she asked with a husky laugh.

"I'll like it better when you're riding my face," he shot back.

She smirked and crawled onto the bed, straddling his hips. James groaned at the feel of her wet heat pressing against his straining erection. He gripped her hips, fingers digging into the giving flesh as he thrust up against her.

Samantha gasped and rocked down, taking him deep in one smooth motion. They both cried out at the sensation. James had never felt anything so exquisite in his life. He set a hard, fast rhythm, pistoning up into her as she rolled her hips to meet him.

She braced her hands on his chest as she rode him, her head thrown back in bliss. The sight of her, lost in pleasure, nearly undid him then and there. James slid a hand between their sweat-slicked bodies to rub her clit, wanting to make her come undone.

"Oh god, oh fuck, James!" Samantha keened, her inner muscles starting to flutter around his cock. "Don't stop, I'm gonna-"

Her words broke off into a sharp cry as she came, convulsing above him, her pussy gripped him like a vice, sending him over the edge. Seeing her fall apart was too much. With a guttural groan, James let go, spurting deep inside her as he found his own release.

They collapsed together in a tangle of sweaty limbs, chests heaving as they caught their breath. James pressed a tender kiss to her temple, feeling sated in a way he hadn't in years. Maybe ever.

They stayed like that for a long moment, just enjoying the afterglow. Then Samantha stirred, reaching for her abandoned robe.

"We should probably get some sleep," she said, not sounding terribly convincing. "We've got an early flight tomorrow."

James nodded, already missing her warmth as she slipped off his softening cock. "Yeah. You're right."

They cleaned up and climbed under the covers, snuggling together like they weren't both married to other people. The taboo wrongness of it only made James want her more. He knew it was impossible, that this had to end, but he couldn't bring himself to care. Not tonight, at least.

"Stay?" he asked softly, pulling her back against his chest.

Samantha hesitated for a moment before nodding. "Okay," she agreed, tangling their legs together. "I'll stay."

And she did. They fucked all night in different positions on various pieces of furniture and figured they'd nap on the plane during the long flight back to their spouses.