I couldn't take it anymore, I stood and dropped my pants and stepped out of them. After stroking myself with spit I put my hand under her knee and lif...ed her leg, dropped my knee on the couch, and found, after a second or two...that glorious hole.I lifted her leg a little higher and let out a groan of pleasure when I felt it slide all the way in. I firmly planted my hand on the back of the couch, holding her in that position and began to slowly pump into her."If this wasn't the shit, I don't. I had been going out with Frank for a month and we had just started having sex when he invited me to stay for the weekend. Of course I said yes straight away, two days and nights of rampant sex was something to look forward to.We had dined out and returned to his flat for a nightcap and then it was off to bed. In the corner besides his wardrobes was one of those blow up dolls."What's that?" I pointed with a giggle."Of that's Ingrid," he laughed and I could see that he wasn't at all embarrassed. He gripped me tight and pushed 6 inches of cock in me. Ouch that smarts. I got into a fucking rhythm and with each stroke I pushed back a little harder to let more of Blackie's dick in me. Fuck me boy - go to town. Yea that's it. Come in me - Make me come. I was fucking..in-out-in-out. I could feel myself getting ready to come. I pictured Blackie gripping me tight and with a big thrust got his knot into me. A few seconds later I squeezed the bulb to release the liquid inside my ass to simulate. I am getting pleasure as well as pain. I asked her to reduce her movement.But she was not listening. Instead, she was scolding and slapping me. “Bhenchod, you want to tease your sister and don’t want to fuck. Then let me take what is mine.” She looking very sexy in that cowgirl position with her open hair and jumping boobs.She keeps on slapping on my chest and face. I am getting pain but my lust takes over that. She cum twice in that position her juices are oozing out from her pussy. My dick.