I tried to maintain my composure as I'm sure she was trying to do the same, but it was inevitable that we were going to give into our lust. The next t...ing I knew she was jacking me off. As she stroked my cock I slid my hand between her legs, and then next thing I knew I had my fingers in her pussy." Oh fuck Frank...tell me more...fucking tell me more!" Well I fingered her pussy until she came and then I came." Oh shit Frank that is so hot. Did you fuck her...did you fuck my Mom?" Geezzzzz. " Caroline took some sunset pictures a few years ago. We could probably frame one of those." May I see them?"He went down the hall to the last door and opened it. A couple of minutes later, he returned with several eight-by-ten glossies in color. The sun had been setting on the mountains and cast a beautiful orange glow that she had captured perfectly."Your sister is a good photographer."He nodded without comment.I selected one of the photos and set it aside. I could go into town and..."I just. I stood some distance away, but I could see them. They were kissing. It wasnt a good-night peck. Their mouths were open, and they were devouring each other. I was petrified. Should I break it up to protect Marie? If I did, would I lose my job? I just stayed watching. After about five minutes of kissing, Karls hands really started working on Maries derriere. Soon the skirt was hiked up over her ass, and he was kneading her bottom through the string bikini. Marie was putting on a good act. She. Mike was heating up, it sounded like he was going to cum again.Meanwhile I was getting excited too. I had a great view of his mouth sliding on and off my cock. Suddenly, Mike started with moans around my cock in his mouth, "uh... uh... UH... UH... MMMMMMMMM...". I felt his dick start to throb, and his hips started to pump up and down, and the next thing I knew I had another handful of his jism. I scooped it up, then straightened up, putting my slimy hand around my own dick, and started.