I sat at my computer for about 20 minutes, when I heard talking coming throw the wall. I put my ear to the wall to listen in it was my sisters room I ...ould almost hear every word they were saying. “What happened” I heard my sister Annie say. I heard Claire explain our little experience in the kitchen to them. “OMG” my other sister Becca. “What did you do after that” Annie said trying to not outburst in laughter. “I just ran up the stairs and put on a short and shorts” Claire responded. Then. She then stood and kissed me. I was completely naked in front of her. She then took a step back and started unbuttoning her shirt. By now the devil in me has started.I held her shirt and pulled her closed by that. In a few seconds, I had torn off her complete shirt off her body. She was in her bra and jeans. I then put the shower off and drank every bit of water from her lips. I again lifted her and took her to the bedroom. We both were wet. I dried myself from the towel.She was bit shivering.. After dinner we went up to my room, which we were sharing, and continued to talk - by then I was able to shut up long enough to give Megan a chance to respond. A lot of our conversation was about the boys I was dating; Megan was a big sister I could talk to without worrying about whether she'd tell my parents any secrets - unlike my real sister. In turn, Megan told me about her experiences with boys at my age; it made me feel good to know that she'd conquered the same insecurities and confusion. Several more minutes passed and once again I pulled out of Cathy and once again Ann moved over and sucked on my cock. When she stopped I quickly went down on my knees and once again moved in and began to suck on Cathy's cunt while Ann moved up and sucked on her tits. When I stopped I again climbed back on the sofa in between Cathy's legs and back into her cunt went my cock. As I fucked her hard again, Ann reached down and finger fucked her cunt and played with her tits while she watched me.