We’d done everything, and for long periods too. The fact that there was such great grass around only helped. Everyone of my age group was generally...great in bed—the grass taught us to screw slowly and in depth. Nothing was foreign to us, sixty-nine, you name it.I had the impression that my mother was sexually kind of naive, and I knew that I could give her a great time in bed if only I had a chance. One day, as we settled into our deck chairs at the back of the house, I had a wild idea. “How. I had a half-sister, and she was named in the will. The mother of my half-sister had never wanted any support from Dad, which was why Mom had never found out. Dad wanted his daughter to have something, and had taken out a separate life insurance policy, listing her as beneficiary. She inherited 15,000 dollars upon his death. Both Mom and I were stunned with this development. Dad had had an affair!That summer Mom seemed to regain her color, and looked better. We went into the city a few times to. Holding her waist I began pounding into her, thrusting my waist against her hard as I pulled her back, my balls swinging between her legs slapping against her pussy. She let out loud moans as she quickly got close to an orgasm. I was so hard and wanted to fuck her really rough. I let go of her waist with one hand and I spanked her big beautiful ass hard, watching it wobble and as I did this she let out a loud moan, her pussy tightened around my cock, it felt so good as it made me push my cock. I don’t think we should continue being so physical with each other.”Mom stopped cutting the vegetables for the salad, turned around, and crossed her arms as she leaned against the counter. “I understand, you are my instructor, but also my son, and it will become difficult for you to separate the two roles you must play if we go any further physically. I learned a lot from Bill, but now I realize I always remained very passive and clinical with him. With you, I started to participate. I stopped.