Even if I had the opportunity, I don't think I could ever do it. I feel sure she's never cheated on me. We've been together so long, and trust each other so much, that breaking the trust would hurt too much. Now, that's not to say we can't (or don't) fantasize. We're open about it, and are not threatened by it. I don't feel the need/desire to cheat....she still rocks my world.