I could smell her gentle perfume, and I noticed her shapely and very white thigh though the gap in the wrap she was wearing. The usual small talk. My ...ob, my wife (Julie), her job. Her husband was Joe, and he was not very good. “How was my sex life?”“Fine” I gasped. “Julie had been a bit inhibited when we first met, but I was a patient teacher and we now have a pretty good sex life”.Joe, apparently, was hopeless. Every night a couple of stubbies of beer in front of the TV, falling asleep. She. After I was able to get hard again I took her from behind, then with her on her back. For some reason every time I tried to cum, she would stop and we would change positions. This never happened with her daughter. When I had to cum I would cum with out my girlfriend making me stop. This started driving me crazy. I wanted to cum in her pussy so bad and could feel my cock about to burst.This is when she laid me on my back, straddled me, sank her hot pussy down on my cock and started riding me.. It was lust ... pure and simple, animal lust.When Deanna started squealing like a pig and her toes curled, her chest heaving and her breathing shallow, there was little doubt. It was too unglamorous and unflattering a noise to be fake. She was cumming for me, yet again, which was the other reason that I knew it was real. I just knew that more of this, sliding in and out of her warm, wet snatch, my previous loads helping lube her further, and I would soon expel a third load and would be unable. “Look Paul I know my sister can be trying at times, but all in all she is fun to be around”. “I know but right now I just want to hang around and relax, not do anything just vegetate”, I said. “Well okay, I will be back this Sunday evening and I think we need to talk, about all this”. I didn’t say anything.Mom finished packing her bag. Before she walked out she left me a to-do list, “here honey a little something for you do when I’m gone”. Mom walked out the door, got into the car a drove off..