Nomad said
I found myself wanting an extra sex scene it was due to it filling a certain fetish of mine. I guess variety is key.
For me it only makes me think twice about even putting the character in there at all. Making even less variety than I would have previously had heh. To request a change to a character from their behavior because it is someones fetish, is a 4th wall element from the perspective of the viewer that should have no effect on the character's decisions/desires/actions/thoughts etc. When I am trying to decide on a characters actions, I try to think what the character would do. And most of the time I find it better to keep the character's personalty fairly consistent. At best I could make make different character for a particular thing that I don't see any of the current characters doing.