Sometimes the foreplay can be just as exciting as the sex act itself because you can play to the gallery as it were.
I sat with Anne opposite Rob and we flirted while he went to get our drinks, by the time he came back we were already kissing. He gave us our drinks and I told him to sit down opposite us. I slowly pulled up Anne's dress while kissing her to reveal her pussy, her panties were still in my coat pocket. I slowly ran my hands up her thighs then pulled her legs wide apart on the sofa so Rob could see how easy it was his loving wife would give herself up to me.
As I gently ran my fingers along her pussy lips and gently rubbed her clit she let out a moan, and so did Rob. The look on his face was priceless, I love seeing the reaction of the cuck a he watches his wife with me, its really powerful stuff.