"No promises," he moaned. "Jeez, that feels good."As she stroked, feeling Mike's cock pulse in her hand, she made other calculations as well. "I need ...o preserve my arm strength," she said. "If I keep jerking you like this, it'll be harder to swim back." Do whatever you need," he replied, enjoying the experience."You better appreciate this." Of course I do."Genevieve bent down and fulfilled a longtime curiosity and dark fetish by taking her brother's dick into her mouth. As tense as the. I could feel my orgasm building up in my cock. I was so lost in the heat of the moment anyone could have been standing at the top of the stairs watching us and I would not have noticed. I moaned into Kelly's ear, "I'm gonna cum Kelly. I can't hold it much longer." She turned her head far enough back so we could give each other a hot kiss. "Do it Eric. Cum inside of me. Cum all over me. I don't care what you do; I just want to make my nice, sweet brother shoot his wad." That was all I. Made a mess of his shorts, so he knows something happened. He came right out and asked me. I admitted to my transgression. We had a boat trip planned, a Saturday cruise to a nice spot to anchor, spend the night, come back Sunday.I played ‘penitent little girl’, asking if we were going to cancel the trip. We didn’t.I went on that trip with a goal in mind.We had a leisurely cruise out. If you know about the hydrodynamics of displacement hulls, you’ll know why this boat is a lot faster than his. It was almost like she was removed from her body and was part of the movie. Her hand moved from her nipples to inside her pants where she was rubbing at a furious pace. It was a sight I had fantasized about but never thought I'd see.As the movie ended, she grabbed my computer, slid it off of the couch, and stood before me."Strip me now!" she pleaded. I quickly obliged as we kissed furiously, she practically ripped my clothes off as well, and we fell to the couch swallowing tongues. Her nipples.