I leant forward and dragged my teeth over his knee, following the hard contours of the bone beneath before I tentatively edged one shoulder between hi... knees. I was rewarded when he shifted with studied disregard, giving his companions the impression of casual movement, allowing his thighs to relax, in reality widening the space between them until I could wedge myself into the intimate space he had created. Enveloped by the cradle of his legs, I rested my head on his thigh, idly tracing. His hands held my hips firmly as he pumped in and out of my body. I reached a second orgasm while he still fucked me. I felt his cock getting bigger and his thrust getting harder. Suddenly my blindfold was removed and I could see again. I felt the guy behind me gripping my hips real hard, so hard I thought I would be bruised later. I looked over and saw this great strong looking black guy fucking me. As I looked at his face, I could see that he was about to cum. Jim was fixed and we never used. I pulled the condom off my cock. But my sister, the little orgasm queen that she was, kept on masturbating the girl's engorged clit as orgasm after orgasm lit her up. I looked over at Gia to see her furiously masturbating her wet, slick cunt just as her first orgasm hit. She obviously had done this before because before she was done, she came three or four times right in a row. I lay there somewhat exhausted with my wet, hard dick still pulsating and a few dribbles of cum trailing out of the. I was already caught once so didn’t want to take chance. So I sat on the opposite side and we started talking again.I was unable to hide my hard-on so took a pillow and kept it the way she could not notice. After 30 minutes or more, she got up to have some water. Then came back and sat next to me. Looking in my eyes she asked what was I looking at earlier. I was a bit ashamed and started looking here and there.Suddenly she took my pillow and placed her hand on my bulge. I was completely taken.