She walked into the gym like she owned the place, wearing those tiny black shorts that barely covered her ass and a sports bra that smashed her tits together. I was on the bench press when I spotted her, and my cock twitched right away.

She caught me staring and smirked, then headed straight for the squat rack.
I finished my set and walked over. "You need a spot?" I asked, already imagining bending her over.
She looked me up and down. "Yeah, but don't just stand there. Get behind me."
I stepped up close as she loaded the bar. Her ass brushed my crotch on the first rep, and I could feel the heat coming off her. By the third squat she was pushing back harder, grinding against my growing dick. "Feel that?" she said, voice low. "I'm already wet from this workout. Want to fuck me right here?"
The gym was almost empty. I grabbed her hand and pulled her toward the locker room. We slipped into the last stall, and she dropped to her knees without another word. She yanked my shorts down and wrapped her lips around my cock, sucking hard and fast like she'd been waiting all day. Spit ran down my shaft as she took me deep, gagging when I pushed her head further.
"Fuck, your mouth feels good," I growled, fucking her throat. She pulled off, strings of saliva connecting her lips to my dick. "Get up and bend over."
She turned around, peeled those shorts down, and stuck her ass out. Her pussy was shaved and glistening. I spit on it, rubbed my cockhead against her clit, then slammed inside in one thrust. She moaned loud and pushed back, taking every inch. I gripped her hips and pounded her, the sound of skin slapping echoing off the tiles.
"Harder," she demanded. "Fuck that pussy like you mean it."
I did, driving into her so deep my balls slapped her ass. She reached down and rubbed her clit, coming fast and squeezing my cock. I didn't stop. I pulled out, spun her around, and lifted one of her legs onto the bench. I shoved back in and kept going, watching her tits bounce with every thrust.
She grabbed my face and kissed me dirty, tongue in my mouth while I fucked her. "Cum in me," she said. "Fill that cunt up."
I slammed in a few more times and unloaded, pumping thick ropes deep inside her. She clenched around me, milking every drop. When I pulled out, cum leaked down her thigh. She scooped some up with her fingers and licked them clean.
We weren't done. She pushed me onto the bench and climbed on top, sliding my still-hard cock back into her sloppy pussy. She rode me hard, grinding her clit against me, tits in my face. I sucked on her nipples while she bounced, then flipped her onto her back on the narrow bench and fucked her missionary, legs over my shoulders so I could go even deeper.
Her second orgasm hit when I rubbed her clit with my thumb. She bit my shoulder to stay quiet. I kept thrusting through it until I was ready again, then pulled out and shot another load across her stomach and tits.
We cleaned up quick, but she gave me her number before she left. "Same time tomorrow," she said. "Next time I want your cock in my ass."