Where it happened: Brother-in-law's fitness room
Langauge: English
Sex: Female
Rating: 5
Category: Straight
I’m 20 and attending the University of Wisconsin. And I’m living with my older sister and her husband, Derek, in order to save money. Derek is 30, and is a trainer and physical fitness guy at a local gym. He’s very fit. We started fucking about a year ago, when I first moved in. It was a Saturday afternoon, my sister had gone shopping, and Derek was working out in the fitness room in the basement. I asked him if he could teach me a few exercises to help trim my body.
Derek told me I looked pretty trim as I was, but he’d be glad to help me.As he worked with me, I felt his hard “package” pressing against my butt. It felt good. One thing led to another and the next think we knew we were on the floor, minus our shorts, fucking like crazy. It was my very first time. I know that’s hard to believe, because I was 19 already, but it just had never happened before. But it was wonderful, having that 9″ manhood inside me and that 30 year old body making passionate love to me.
After that first time, it got to be pretty regular — every time my sister was gone and Derek and I were home together.I;m surprised I haven’t gotten pregnant. Derek has never used a condom, and there have been several times he’s come inside me, rather than pulling out and spraying it on my body. Just lucky I guess.
I know I shouldn’t be doing it, and I feel guilty sometimes, but when our bodies are joined and thrusting together, it feels so good, we can’t stop. And Derek tells me that sex is the best exercise there is for keeping trim.
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