I finished my set on the bench and sat up, wiping my face with my towel.
I looked up and into the mirror, at the woman on a treadmill behind me.
I had noticed her as soon as I walked in, and I caught her gaze a few times during my workout.
The treadmill was facing the other way so I had a great view of her ass bobbing up and down as she ran.
I stood up and put my weights away, noticing that she immediately finished her run.
I watched as she made her way over.
She was about 170cm, or 5.5 feet, and had her long bleach-blonde hair tied up in a ponytail, and even though she wasn't wearing any make up her face still made every guy in the gym turn and stare.
That is, if they weren't looking at her tits or ass.
Her tits were double D's and straining against the confines of a black Calvin Klein sports bra.
Her ass was magnificent, and was hugged tight by her dark grey yoga pants, which also showed off her amazing legs.
She was over 40, but you couldn't tell seeing her like this.
"Hey. Good workout?" I asked her.
"Where are you going now?" she asked, ignoring my attempt at small talk.
I paused, a sly smile spreading across my face.
"How about your place?" I responded.
"Follow me." She said, turning and striding to the exit.
I glanced around me, seeing if anyone had caught a snippet of our conversation.
Satisfied at our privacy, I followed the woman out of the gym.
She was in the carpark, leaning against a minivan. The carpark was deserted.
"Get in the back seat." She ordered.
I climbed into the spacious rear of the car and sat as the woman climbed in after me.
As soon as the door closed we reached for each other and started kissing passionately.
I tasted the salty sweat as I kissed her neck, then caught my breath as I took off my shirt and she took off her sports bra. I grabbed her breasts and squeezed her nipples between my fingers as she grabbed the back of my head to bring my lips to hers.
I pulled my shorts and undies off in one go throwing them on the floor, while her yoga pants took a few moments to join them.
She pushed me back so I was lying across the back seat of the minivan, and straddled me.
She raised herself up on her knees and grabbed my cock, positioning it right below her pussy.
It took a few moments for her to sink her pussy onto my whole cock, but as soon as she had we were fucking like animals.
One of her hands was on the window above me head and the other was on the seat as she determinedly rode my cock, while my hands were busy squeezing her boobs.
The minivan was soon steamy and the windows were fogged up as she continued to ride me.
She was moaning very loudly, and I'm sure the minivan was rocking, so it was a good thing the car park was empty.
Soon the woman threw her head back and started gasping, her thrusts starting to become shorter, as she came on me.
She immediately got off my cock and turned around, planting both hands on the opposite window, making handprints through the steam, and looked back at me.
"Make me cum again." She demanded.
I slowly got up and onto my knees behind her.
My cock was rock hard and slick from her juices, and I rubbed it slowly along her slit, teasing her.
She roared in frustration and thrust herself back, impaling herself again on my cock.
I groaned as my cock entered her hot, incredible pussy once more, and grabbed her hips as I prepared my renewed assault.
The sound of her amazing ass smacking against my chiselled abs joined her moans of pleasure, and I slapped her ass sharply, causing her to cry out in surprise.
After a minute, I reached around with my left hand to play with her clit.
She immediately started bucking underneath me, and I had to grab her midriff to keep my cock inside her.
"OHHHH FUUUUCK!" she screamed as I continued to thrust forcefully into her while rubbing her clit.
For the second time in a few minutes she came, this time slumping forward, exhausted.
I pulled out and held my cock expectantly.
After a few seconds, she turned around again, getting onto her knees in front of me on the minivan floor.
She started rubbing my cock with both hands, giving me a lustful look.
I grabbed the back of her head, and she knew what to do.
Her jaw dropped and she took my whole cock inside her mouth and down her throat.
She was the best I'd ever had at sucking my dick, and soon I was the one moaning loudly as her head bobbed up and down on the head of my cock while her hands worked my shaft.
I had a big cum, shooting a few loads into her mouth.
She swallowed the lot, then started getting dressed again.
I took a few seconds to get my breath back, then started dressing too.
"See you tomorrow." I said, before exiting the car.
I guess I should tell you a bit of backstory. I'm a 24-year-old guy called Brad. I'm not gonna lie, I'm absolutely ripped, I have an awesome job and a hot girlfriend. I'm also not a man easily satisfied, and this is the story of how I fucked everything up (excuse the pun).
I met this woman, who never told me her name, at my gym.