But we had found three favorite places where we could make love, and we managed to do that about two or three times in an average week. The first spot...was The Pond, as we called it. It was a small pond in a remote corner of a vast park at the edge of town, a park easily reached by public transit. The pond was surrounded on three sides by a low but opaque wall, with a gate at one end. Hardly anyone ever went there, so we could make love in this semi-public place, unnoticed by those enjoying the. Only after we collapsed against each other did I begin to wonder if Nancy and Kevin had heard anything. Nah, probably not. The TV was on, after all.I should have known better. They told me later they were listening at the door. What friends.Kathryn and I showered and dressed. I brought her out and introduced her to them. They had already seen her picture some time ago and had both told me how beautiful they thought she was. I guess shouldn't have been surprised when Kevin and Nancy both hugged. I started to kiss her on her shoulder and she continued to seduce me by grinding me on my dick.She then slowly got up from my lap and grabbed the elastic of my tracks and undies together making a gesture that she wants to take them off. I raised my hip for her to her better access and she took the undies and tracks in a go.Now I was sitting on the chair half naked, in just a tee with my dick which never felt so hard. She slowly took my dick in her hand, pushed it down and sat around it.Gosh, I. She was tense again but didn’t resist. But she pushed her finger firmly into my ass. It happened so fast I couldn’t resist – the message was clear “we’re going to be gentle with each other, right?”. It felt alien to me – it had been done to me before by other girls but not by this one. And not with me in this position with my ass in the air and no hands to defend myself. But as she started to rub the prostate with each little thrust it felt good. Great in fact. Her mouth around my cock and her.