Byakko Rei
Of Demons And Love
Series: Sailor Moon
Sex factor: some
Kink factor: child abuse (past), f/f
Set in the universe of another fanfic (but you can manage without having read that one, I didn't). Rei confesses her traumatic childhood to Usagi, which leads to a growing closeness between them. Very talky (there's a lot of altered past to catch up on) and Usagi's character is a little off - I only made it through chapter 6.