A few years ago I was 18, and like many 18 year old guys I wanted to “get big” so I went to the gym pretty often to work out. My Stepmom was married to my dad not long before my 18th birthday, and recently she had been coming to the gym with me. She liked to stay in shape. She was more than 10 years younger than my dad; she was forty years old and my dad was in his early fifties.
She was an attractive woman with a great smile. She had a surprisingly nice figure for her age, her boobs were large and perky, her butt was muscular and curvy. It was a shock to me that at forty years old, she actually had an amazing thigh gap as well. Her hair was a gorgeous dirty blonde color, it was thick and wavy reaching past her shoulders. Her skin was a very pretty tan color. Even in the winter, she never became pale.
One Saturday morning, I woke up and went through my normal daily routine, and decided I would go to the gym to get a quick workout in. As I was about to leave for the gym, I heard my Stepmom yell to me, “Wait Steven, I’m gonna go with you this morning.”
I waited in the car for her to get ready. Several minutes later, I saw her walking towards the car. She was wearing skin-tight yoga pants and a sports bra. The sports bra seemed to barely contain her breasts; her cleavage was very prominent. her legs looked fantastic in the yoga pants, her thigh gap allowing light between her muscular legs.
As she walked around the front of the car to the passenger side, my eyes were glued to her butt. Her asscheeks were extremely smooth, no sagging or wrinkles anywhere. She got in the car and we went downtown to the gym.
We walked in together and went straight for the treadmills for a quick jogging warmup. She got on hers first, I watched her ass jiggle and sway as she moved. I got on the treadmill next to hers and we jogged for around 5 minutes. That day we decided we would do legs, so we went to the weights to do a few sets of squats. She quickly adjusted a bar to her preferred weight and placed the bar up on her shoulders, ready to squat. She hesitated.
“Steven, would you do me a favor and just stand behind me in case I start to fall backwards? Just spot me.” She asked.
“Yeah sure of course.” I replied, as this was a common request of workout partners.
I stood behind her without touching her, my hands out in front of me ready to catch her if needed. She began to squat, sticking her butt out far. She faltered a little bit, but recovered and completed the squat.
“Could u stand even a little closer? Its just that I haven’t done this in a while.” She asked.
I moved closer behind her and got in a minor squatting position myself, providing better balance. She squatted once again, her tight ass rubbing up against my penis area. Nobody else was in the gym as early as we were that day, so I didn’t feel very embarrassed.
After several more of her squats, the constant contact between my penis and her ass was beginning to cause me to get an erection. The shape of my cock was now visible through my shorts. I was extremely hard, and found it difficult to believe that she didn’t notice.