I am a mature student, 27, and when I am not at lectures or studying I hit the gym, a small but well equipped club that is frequented by some great looking guys and gals. I have been going for two years or so now and I am not shy to say that it shows.  I used to hide my body, now I wear a revealing vest top and baggy jogging bottoms. 

I was working out and had nearly finished my hour. Just as I was about to take a shower this stunning woman came in.  She must have been a few years older than me but her body was at the peak of fitness.  She wore a small fitness bra and shorts with a baggy string vest top - very stylish.

She took to the running machine nearby, pounding the tread with strong purposeful strides.  The muscles in her legs shuddered with each impact, her breasts – firm and round like grapefruits – swaying with the motion.  I was in a great position on the chest press and didn't want to leave my vantage point.  A couple of other guys were in, but not as close.  I licked my dry lips and moved the weights, sweat building on my brow.  Luckily, just as I thought my arms would give way, she moved to the rowing machine.  I sat down at the machine next to her, watching her body slide back and forth.  I imagined her naked and felt the hot tingling sensation of an erection.  So I matched her speed, upping the tempo.  Shortly after she increased her speed, puffing with new exertion.  I, in turn, quickened the pace.  Looking to my side, I saw her quickly look at me. Smiling, she upped the pace again.

At this point my body was pushing its limits.  Reluctantly I slowed to cool down.  She turned to me, smiling broadly, and thanked me for the competition, but warned me, "Next time don't take on a competitive rower."

I laughed and declared myself beat.  So then, I thought, what the heck? "Do you want to get the dying man a last drink?" I panted.

"Sure, it’s the least I can do.  Let me change and we can meet in the juice bar."

I showered down and luckily none of the other guys were about, 'cause the whole experience had made me horny as hell and I had an uncontrollable hard-on the whole time.  I quickly dried, stowed my swollen member and went out front to the bar.

I saw her out the front looking anxious and worried.  I asked her what was up and she explained that she'd forgotten her towel and wash stuff. I bought her a juice and we talked a bit. She was reasonably new to the area and was checking out the local facilities.  We hit it off well and then she asked if I lived close by; she was meeting friends later and didn't want to turn up sweaty and unwashed.  I helpfully offered the use of my bathroom, not five minutes away. To my amazement, she jumped at the idea and we set off.

We arrived and