When I was 18, I started dating Amy, my ex-wife. She was a gorgeous brunette and had a slim tight body. Her titties were larger than my previous GF, and were firm and high as only a young woman's can be. I met her mother after we had been dating about a month. I immediately saw where Amy got her looks. Margie was 38 at the time, she had shoulder length brown hair and was wearing a business suit. It was form fitting and accentuated her curves. She was arguably better looking than any of the other moms I knew. Amy's parents were divorced and her dad was never around as far as I could tell. They had a pool and most days we would just lounge around her pool and enjoy the summer. I especially liked the weekends, because Margie would join us and lay out in her bikini. She had perfect tits and a flat stomach. Her ass looked great in the bikini and I could definitely make out her mid 1980's bush when she'd get out of the water. I found myself fantasizing about her more and more. There were quite a few times I would imagine that I was fucking her when was with Amy.
On one occasion that will be forever locked into my memory, I dove into the pool, and my swim suit slid right off of me. I was very distressed by it. Amy had gone into the house to make lunch for us and the shorts were about 20 feet behind me. I thought I could just swim over and get them nonchalantly and Margie would never know. Then, she dove in to the pool. She came up holding my shorts in her hand and asked me if I was missing something. I was embarrassed and stuttered that I was naked. She just smiled and threw them to me. She got out of the pool and grabbed her towel. She mentioned that she was going to help with the lunch and give me some privacy. My cock was about half its normal size from embarrassment. I pulled my shorts on and got out of the pool to lay down. At least she hadn't seen my cock so small.
The sandwiches were brought out by Amy and we ate and swam some more. After a while Amy fell asleep and I got up to go to the bathroom. I walked down the hall and heard Margie on the talking on the phone. Her door was closed and as any 18 year old boy, that fantasized about a woman would, I listened. I heard my name and heard her tell the other person that she had seen me naked a few times. That I had such a pretty dick and that she was always hoping to see me more. WOW!! My cock was at full attention now and I wanted to hear more. She admitted to her friend on the phone that she masturbated more than few times while thinking of me. I felt dizzy with excitement. Sadly I heard Amy call for me and I had to head back out.