My partner and I love to tell eachother what we like. We often talk about our fantasies while we are doing it. For instance while she is riding me, I tell her, wouldn't you have loved it if someone was licking your ass while you are riding me? And she would say: oh yeaaaah, with a big moan. This usually causes both of us to get even more excited. She often tells me she can feel the extra erection inside her when we talk about these things while I am in her.