I was working out in the gym, on my own for once, and there was no one else there. It was only a small gym, with limited equipment, as it wasn't the main gym in the hotel. The main one was on the ground floor, this one was on the top floor, and was normally only meant to be used by staff, but because of the publicity surrounding S Club, we had been given permission to use it.
Tina walked in while I was on the running machine. She was in a blue bikini. She walked over and said hello, and I replied politely. She then walked over to one of the leg muscles machines. I stared at her ass, as she walked away. It was a fine ass. She was on the machine, which involves pushing her legs apart. I watched her in the mirror, hoping that she couldn't see the bulge in my trousers that was appearing.
I slowed down my walk and thought of things to get my penis to go down, not wanting to show Tina my rock hard member. Finally she stopped and went into the changing room. I stopped my walk and lay on the bench press, and began to build my muscles. My penis was still semi-erect, but it was no longer an issue with no one else in the gym.
I didn't notice Tina re-enter the gym, and neither did I notice her creep up between my spread legs. However I did notice her presence when she put her hand straight on my crotch, and said:
"You got a good view then!"
I dropped the weights, with a clank.
"I'm sorry...." I began
"Don't be!" She cut in, "I am glad that I can do this to men. Anyway, your tight ass was having a similar effect on me!" As she said this, she took my hand and put it between her shapely legs. She was wet, and it wasn't sweat.
She walked away, but continued to talk. I sat up, partly to conceal my hard-on, partly to see her ass and legs.
"Hannah and Joe have been talking about what a great 'personnel trainer' you are, and I had to see for myself" She had reached the door. I thought she was gonna leave, but I was wrong. Instead she locked the door.
She walked back over to me.