Originally Posted by MrFriendly

Yeah, I've heard there's actually a condition for this called "Male Gender"

Dude I think it's pretty natural to have fantasies about your friends from time to time. But those thoughts are yours and no one else's. It's really up to you where you draw the line.

Just remember, what you think and what you act on are different things, in this case, don't let the former start affecting the later.