The knock on my office door startled me out of my concentration. I was deep into work on an important project, trying to hit a tight deadline. "Come in," I called out, glancing up from my computer screen. The door swung open and in walked my coworker, Tina from the marketing department. She came strutting into my office.

I'd worked with Tina for years, and there was always been an undeniable sexual tension between us. We were both married with young children at home. We'd flirted and toyed with each other, but never crossed that line - until today.

Tina sauntered in wearing a baggy, V-neck sweater that plunged deep, exposing her ample cleavage. The sweater hung off one shoulder, accentuating her curves. A scandalously short black skirt stopped mid-thigh, her toned legs on full display in strappy black sandals. Her long, tan legs seemed to go on forever.

She approached my desk with a coy smile, hips swaying sensually with each step. Tina leaned over, giving me an eyeful down her sweater. "Hey big guy, got a minute?" she purred seductively. I swallowed hard, mouth going dry. I couldn't help but drink in the delicious sight of her.

Tina glided around the desk and plopped herself right down on my lap, one smooth leg on either side. She draped an arm around my neck, enveloping me in her intoxicating perfume. "I've been watching you," she breathed, her plump lips inches from mine. "I want you."

Before I could respond, Tina captured my mouth in a searing kiss. Her lips were soft and sweet, opening to let my tongue plunder her mouth. The kiss turned passionate, hungry. I was taken aback for a moment, but soon found myself kissing her back with equal fervor. As we made out, I slid my hands up her thick, shapely thigh, squeezing the supple flesh, stopping just at the edge of her panties. She let out a little moan into my mouth, encouraging me to explore further. I rubbed my fingers against her labia through the thin fabric of her underwear, feeling her already starting to get wet.

She rocked her hips, grinding her heat against my hardening cock. Encouraged by her response, I delved under her skirt and shoved her flimsy thong aside, and plunged a finger deep into her tight, slick heat.

"Ohh!" she gasped. "Yes, just like that."

I added a second finger, pumping them in and out of her while using my thumb to rub firm circles on her clit as I finger-fucked her hard and fast. She started gyrating her hips against my hand, riding my fingers as she continued kissing me back.

My digits found slick folds and I plunged two fingers knuckle deep into her sopping pussy. Tina's head fell back as she keened with pleasure. "Oh fuck, your fingers feel so good," she gasped.

She was writhing on my lap, tits practically spilling out of her sweater. Her pussy sucked lewdly at my fingers, gushing and fluttering around my digits.

Just as she was about to cum, Tina broke the kiss and wrenched herself off of me. "Stop, stop, stop," she panted. “Okay, that's enough.” I immediately removed my hand from her panties, confused. But then she stood up and said with a smirk, "Now I'm horny as hell." I just sat there stunned for a second before she continued, "But we can't do this here. What if someone walks in?" My cock throbbed painfully in my slacks. I'd never wanted to fuck someone so badly in my life.

Regaining my senses, I stood and stalked to the door, locking it and flicking off the lights. The dim light filtering in from the frosted glass windows was enough to see by. I returned to Tina, without a word, bent her over my desk, flipped up her skirt, and yanked her panties down her legs. Spreading her ass cheeks, I buried my face between her thighs and lapped at her sopping cunt. "Mmm fuck, you taste good," I groaned. She tasted sweet and musky.

I lashed her swollen clit with my tongue as I delved her tight back door with my tongue. Tina was panting and mewling, hands scrabbling at the desktop. "Oooh fuck, oh god yesss," she hissed. I fingered her G-spot as my tongue plundered her ass, driving her wild.

"Oh fuck, just like that," she keened, pushing her ass back against my face. "Don't stop!" I continued tongue-fucking her ass and finger-fucking her pussy hard and deep, determined to make her cum.

But before I could bring her to climax, she suddenly shoved my head away and stood up straight. "Wait," she panted, looking at me with desperate, lust-glazed eyes. "I need your cock in me. NOW," she demanded. I was more than happy to oblige.

Unzipping my fly, I freed my engorged black cock. Tina turned and braced her hands on the edge of the desk, presenting her needy hole. I notched my flared head at her entrance and thrust to the hilt in one smooth stroke. "Oh fuck!" Tina cried out, her fingers scratching at my desk for something to hold onto as my thick shaft stretched and filled her. Inch by inch I pushed into her until I was buried to the hilt. Her slick walls stretched and squeezed around my thick length.

I hilted myself deep and started fucking her hard and fast, pounding into her clutching heat. The office was filled with the slick sounds of skin on skin and Tina's low, drawn out moans. She was biting her plump bottom lip as I railed into her. Her nails scratched at the desktop as she met my pistoning hips.

We didn't have much time; someone could knock on my door at any moment and catch us in the act. The thought of potentially getting caught only turned me on more. I pushed Tina's legs together and assailed her tight channel forcefully, knowing she could take a rough fucking. "God you're so fucking tight. Gonna ruin this sweet cunt on my cock," I grunted.

"Ungh, your cock feels so good," Tina moaned, bracing herself against the desk as I pounded into her. "Don't stop, fuck me harder!" I complied, slamming into her so hard the desk banged against the wall with each thrust. She came three or four times, her pussy clenching around me like a vice. "Fuck fuck fuck, I'm coming! Don't stop!" she whimpered. I fucked her through it, determined to fill her with my seed.

When I felt my orgasm rushing up my shaft, I gripped her hips bruisingly tight and slammed into her one last time, until the head of my cock kissed her cervix. Then I let loose, pumping what felt like a gallon of cum deep into her spasming channel.

"Take it all, fuck yes," I groaned, eyes rolling back.

"Oh fuck yes, fill me up!" she gasped as she felt my hot seed painting her insides.

With a final shudder, it was over. She pulled off my softening cock and cleaned herself up before putting her clothes back in place. She straightened up on trembling legs and fixed her panties and skirt. With a wink over her shoulder, Tina sashayed out of my office and closed the door behind her, leaving me standing there, spent. I tucked myself back into my pants and sat back down at my desk, my heart still racing.

A moment later, my phone buzzed with a new text from Tina. "That was amazing. Thank you!" it read. I couldn't help the satisfied smirk that spread across my face as I typed out my response: "Anytime," with a winking emoji. I had a feeling this wouldn't be the last time Tina showed up in my office wearing slutty clothes and an invitation to sin. The forbidden thrill of cheating on our spouses together was too hot to resist.

With that pleasant memory still top of mind, I shook my head and got back to work on my project, pushing thoughts of my illicit encounter to the side for now, a smile playing on my lips. Tina's sultry perfume still lingered in the air, a secret reminder of our illicit tryst to keep me going the rest of the workday.