One Night

My sister and I went to a concert together while my boyfriend was visiting with his family out of town. I ran into an old friend and my sister and I went back to his apartment after the concert. We got pretty high and my sister and I wound up in bed with my friend and took turns fucking him. After a couple of turns we wore him out. In the morning he woke me up and fucked me while my sister watched and fingered herself.

Later that day I went over to my boyfriend's apartment and he asked me about the concert. I. had started to feel guilty about the previous night and confessed that I had been with a friend over night with my sister. He asked if I had fucked my friend and I told him everything and told him I was sorry, but we had been pretty high. He told me to tell him the truth. I told him I had sucked him and fucked him twice. Yes, he had cum in me. Also my sister. He'd fucked me in the morning. My boyfriend undressed me and fucked me until he came and I had an orgasm. He told me it. turned him on to think about another guy fucking me. I asked him to forgive me and he did, but he said he wanted me to do something for him.

The next Friday night my sister and I took turns with my boyfriend. He fucked my sister the next morning and had me watch. I watched my sister make my boyfriend cum again, My sister and I had never, ever shared a guy or a boyfriend before. Now, every now and again, my sister and I will both sleep with my boyfriend. My sister loves fucking him, but is very careful to let me know she is just a friend of his, not his girlfriend. So far, so good.