He's Just a Coworker. She'd Never Cheat on You.

“It seems like you’re boyfriend’s a little clingy,” Aaron, your girlfriend’s coworker, says as she gets in his car and waves at you through the windshield.

“Not really,” she replies. “He just thinks it’s a little weird that this is the fourth day in a row that you’re giving me a ride to work.”

Aaron puts the car in reverse, smiles at your girlfriend, and backs out of the driveway. “He’s got nothing to worry about, right?” he asks with that smile still plastered on his face. Aaron puts the car in drive, waves to you, and punches the gas.

Your girlfriend unbuckles her seat belt, reaches across the center console, and unzips his pants. “I think we both know he has a lot to worry about,” she says. “He’s actually more observant than I thought he’d be. He definitely suspects that you’re fucking me.”

“Should we stop?” Aaron asks.

“Fuck no,” your girlfriend replies. “I’m not giving up this dick.” She’s talking about the dick in her hand. The dick that’s rock hard, long, thick, and ready to give her what she needs.

“Good,” Aaron says. “Because it would be painful to work with you and not be able to fuck you.”

He lifts a hand from the steering while, moves it to the back of her head, and guides her mouth between his legs. Your girlfriend moans as her lips surround the stiff cock that’s already been inside her three times that week and will soon fuck her a fourth time.

“God damn,” Aaron says. “You suck dick like no one I have ever experienced.”

Your girlfriend moans again. She takes more of his big cock into her mouth. She likes that he enjoys her mouth so much. She likes that he was half hard by the time she pulled his cock out of his pants. She likes that he wants her so badly that they routinely sneak into the bathroom at work for a mid-shift fuck.

“Deepthroat me, baby,” he says.

Your girlfriend deepthroats him. He applies pressure to the back of her head. She lets him. He likes being in control and she likes letting him take control.

He pulls his hand from the back of her head and your girlfriend’s head pops up. She gasps for air, but her pussy is soaked. She likes the way his cock fills her throat. It makes her think about how he’s going to stretch her out when he fucks her.

“The usual spot?” he asks.

“Yes,” your girlfriend replies. “And hurry up.”

She returns to his cock and Aaron hits the gas. He drives to the commuter parking lot they’ve been fucking in every day this week. He pulls into a space between two SUVs, turns the car off, and leans his seat back.

Your girlfriend deepthroats his cock again, holds it in her throat for a few seconds, and then pulls her mouth off it and hurriedly strips off the ugly navy blue slacks her retail job makes her wear. She straddles Aaron, pulls her panties aside, and takes his cock inside her.

His hands move under her shirt and he plays with her tits as she bounces on his cock. Her moans quickly fill the car.

“Fuck, Aaron, your cock feels so fucking good inside me,” she says.

“Ride me, baby,” he says. “Ride my cock. Ride it as hard as you want. Ride it and cum all over it.”

Your girlfriend smiles. You’re not really into dirty talk and she loves that Aaron is. She loves that his hands are so active when they fuck. She loves that he’s so into her. Most of all, she loves that she’s cheating on you. She knows it’s wrong but she can’t help it. Even thinking about fucking Aaron behind your back makes her wet. Every time she does it she cums so hard.

They can’t be late for work again, so they’re both fucking with furious energy. They pursue their orgasms in lock step. Your girlfriend bounces and grinds on his cock, giving her clit the pleasure it needs to achieve the sort of thunderous climax her body craves.

“Fuck, I’m close,” Aaron says.

That’s the moment your girlfriend loves most of all, because she gets to say, “Cum inside me.” Every time she utters those three words to the man she’s cheating on you with, it’s enough to put her over the top. The thrill of infidelity floods her body with arousal and she cums so hard.

Aaron grabs her ass and pulls your girlfriend down on his cock. He lifts his hips and unloads in her pussy as she gently grinds her clit into his pelvis. She cums right along with him. They both fill his car with moans as they claim the intense satisfaction that comes with an orgasm achieved via cheating.

Your girlfriend leans down and they kiss deeply. They indulge in the kind of post-coital warmth and appreciation that comes from a particularly good orgasm.

For a moment, your girlfriend considers what she’s doing to you. She feels bad about it, but not bad enough to stop. The orgasms are just too good and she knows that fucking behind your back is part of it. She’ll just have to stop having Aaron pick her up every day. She doesn’t want to be too obvious about it, after all.