She slid my hand down along his ass crack. I couldn't resist and slid a finger to his bunghole and lightly touched it. He drove it in ever so much dee...er.She just laid there on the roof with her young lover fucking her and me kissing her as she slid my hand all over her young lovers ass and into his crack . I was gonna nut soon. He drove it in for a final lunge as she clamped her legs around his ass and stopped kissing me and kissed him. We were all lost in lust and I then wrapped my arms. “You bastard,” she hissed under her breath, as we left the table behind us.I just laughed, “I’ve enjoyed your company immensely,” I replied, “you’re so lovely to talk to.”“Fuck off!” Came her reply.I looked at her with my head tilted to one side, “Come on,” I smiled, “it’s been fun hasn’t it?”A smile broke out as she bit her lip. “I want to drop to my knees and suck your cock.”“And I want to fuck your pussy and make you squirt – you slut. So go on then, suck my cock, right here,” I. Her bra was slid up to expose her breasts and soon Carol was sticking one into her mouth. My sister moaned her acceptance and slowly let her knees far apart to the gentle probing of my hand. She raised her hips just a little as she scooted down into the couch. Her eyes were closed as she went dreamingly into another world of erotica. I suggested that we move to the floor, so in unison, we rolled to the rug and settled in there for a very nice, impromptu session of love making. Carol had moved. "Don't worry, I've had a look around, and there's no one else here. God knows what I'd have done if there was, but I'd have warned you guys somehow. I'm just not sure if I could have walked in on you while you were ... you know." Now Sarah was embarrassed, mostly because she wanted to say it, say what we'd been doing, but felt it wasn't her place to do so. In that one moment, I really appreciated just how good a friend she was to my sister, and I could see that she was becoming a friend to me,.