Should I feel guilty about hooking up with my friend's mom? It was her that came on to me, but she is still married. Even though she says my friend's dad is a jerk.

I know this is at least a little wrong, but she is so awsome. She knows what she is doing and she's on birth control so I can do it raw and dump inside her instead of having to wear a stupid rubber. She is way better in bed than the other girls I've been with.

It seems like I spend every moment waiting for her to call my cell & ask me if I want to come over. But I do feel like I'm screwing my friend over. He doesn't really get along with his dad, but they all still live in the same house.