I'm bi and my husband doesn't know. Im afraid if I tell him he'll feel threatened by other women I hang out with (none of which I find remotely attractive). Sex is great between us, but there have been times I've fantasized about a woman while he was going down on me and I did feel guilty about it afterwards. I know it might seem like a thing a man would love, to watch his wife kissing and having sex with another woman in front of him like in porn, but at the same time I think it would hurt him, especially if he feels insecure and starts telling me not to hang out with my friends. Bottling it up has worked so far so might have to keep it that way.