I should have known right then.I should have known right then. About two weeks later, Billy called to cancel our date for that night, saying he didn't feel well. Fool that I was, I decided to go over to his place anyway. I guess I wanted to prove something to him. That I cared, that I'd stand by him in sickness or health. I don't know. Billy lives in a ground floor apartment at the rear of the building. The easiest access to his apartment is a rear door, which is right next to Billy's bedroom window. I had my hand on the knob, ready to go in, when I heard a moan coming from the window. I thought he must really be sick to sound so pained; until I realized that the moaning was too rhythmic, to calm and contented to be pain. When I heard him moan the words "Oh baby, do it, like that, oh yeah," I went right to the window to see what was going on. The window was raised about six inches. I reached in and quietly spread the slats of the venetian blinds. I was looking right at my sister's round naked ass. Her cheeks were spread, exposing her brown asshole. An oily line of vaginal juice dribbled from her cunt, leaving a small trail from her crotch to her knee. She was horny as hell and, when she moved to the side a bit, I could see she was contentedly licking my boyfriend's swollen cock. I'd said that Billy's hard on was big, but until then I had no idea of its actual size. |