A.I had been with a few men before, and was always eager for sex, even so much so that frequently I would test my partner's stamina and re-cycle time....This perceived need for more continuous stimulation was what drove me to think about getting gang-banged from time to time. What I didn't realize is how degrading and mechanical such an experience could be.One night, I went out to a club not far from my sister's place. She had begged off coming with me, with an excuse about it being a weekday. She started by grinding on me with her ass and then she sat on me face to face while she grinded harder and harder. My cock was literally trying to rip out of my boxers and not soon enough she let my cock free. She slowly grabbed my tip and jerked me off slowly then she climbed back on me and continue to grind.She whispered she cannot cheat on her husband so I cant go inside her. We continued to grind and her pussy was so wet. I knew this could be my last chance so I decided to lie her down her. Back home Emma came down when she heard us arrive looking a little tired, but told us she'd slept well. I began preparations for the family's dinner whilst the girls went upstairs to tackle their school work and Gillian and Emma chatted in the living room. Once dinner was on the go I popped onto the home PC and logged onto my work's server to sort out the company's wages as well as check out any correspondence that might need my attention. Other than the usual demands on my time there was. “What now?” Sarah said trying to hide her laughter as we searched for a way in. I noticed a skylight window open and thought that if Sarah could get her arm in there she might be able to reach the latch, I suggested it and as Sarah got up on the ledge I held on to her as she reached in, it was a struggle and I wasn’t sure that she could reach it.I pressed my hands up on her arse pushing her further, probably not the best plan as it was having an adverse effect on my cock but sometimes you just.