To take the paladin thing a bit further, we had a lengthy thread on here a few months back about whether paladins should be chaste/celibate, as in they do not engage in any sexual activity at all. I had started the thread because I was wondering why so many DMs seem to require paladins to be basically sexless when the various Player's Handbooks dating back to 1st Edition do not technically require it.
When you DM somebody playing a paladin, is this an unwritten part of your paladin code?
I will say that sex/love is not something that comes up every session in our games, but I was thinking about it a while back when a paladin PC of mine basically stood guard while the rest of the group was visiting our game's equivalent of the Castle Anthrax... And, I am also not saying that the paladin would be wildly promiscuous like a medieval era Wilt Chamberlin, but I could see a paladin in a committed monogamous relationship with a follower of the same deity.