I have been fucking a friends wife for a couple of years now. He is the jealous type so we are real careful. haha! We fuck in my house, their place, my car, etc., basically everywhere. Lately I have begun to suspect that he knows what we are up to. Why do I think this? Well she is always coming up with new ideas, places, sex acts, and it just seems to me that maybe they plan this together and she tells him all the details after. Not sure what to do about it. Should I ask her? Don't want to ruin a good thing.