It had a very modern kitchen and a living room with cable TV and two big chairs and a sleeping couch. The living room was full of light and well kept....Behind the living there was a bedroom with the bathroom. In the bedroom there was a big two person bed.Since my parents liked to be up late and we were still young (me 16 and my brother 15) and had to go to bed early we took the bedroom and our parents the sleeping couch.After we unpacked it was very late and I was tired and went to shower.The. "Ooohh oooohhhh, God" my stepmother moaned as I penetrated her cunt with my middle finger. I pulled my finger out slowly, feeling her wetness on it just before I pushed it back in.She surrendered to me completely, only soft moans and sounds of pleasure leaving her mouth as I finger fucked her lustfully."Ooohhh", "Sam!", "Aaahhh" my mom suddenly blurted out between moans, trying to stifle the second one without succeeding.I stopped fingering my mother, my finger inside her and I looked to my. For his cum in my fertile womb. He asked if I was sure that I wanted him to cum in me and I said yes. He said if he came in me once that he would want to everytime, I told him he could cum in his sister as much as he wanted. After his 1st cum in my womb I looked at him and smiled and told him I wasn't on the pill anymore. Big brother keeps fucking my pussy, tells me my pussy belongs to him now. He fucks me all night in the closet knowing our parents were just feet away from his bedroom. He. My two parents, rutting like animals, rocking as they reared and bucked, fucking their brains out. They were totally unmindful of my presence, in their rush of passion. I damn near came right then.If they had continued like that, the dance of the two-backed beast, I would have. But mom somehow raised herself to toward dad, and like wrestlers they rolled, quickly she was riding on top of my father, who stretched out on his back. I became engrossed in viewing her pussy slide up and down dad's.