CFNM
I sometimes masturbate to cfnm images (clothed female, naked male), not because I am attracted to the naked guy, but because I like to visualize myself in those situations. I have only been intentionally completely nude in front of a few women, always one on one (except for one time when my wife and I shared another girl, before we were married...or rather they shared me before sharing each other), and, not counting my wife, the other person has been naked too. With my wife though, there have been lots of times, even when we were first dating, in which she was fully dressed and I was naked. I want to be naked in front of her and a couple of her friends sometime so they can all play with me however they want. Just not sure how to bring that up.
Quit looking at images; stuff like that messes with your head and makes you want weird things. Give the wife sex often and role play with her. Thinking about others is a bad way to go and only leads to pain in the end.
I wouldn't bring it up. Let it be a private kink. She will shit if you mention that you want to be naked in front of her friends.