I think this has been done before BUT a world where the superhero/villain scene is a kink thing. Traditionally, the hero is the top and "wins", though "gritty" pairs with villain tops are more common these days.
@BestGirlGrace isn't this kinda one of the themes of megamind? like sure, they don't call it "kink" but the plot is basically "but I thought we were having fun roleplaying"
@transbian_tronbreon@BestGirlGrace specifically, the plot is that they Were having fun roleplaying but then one of them got tired and the new guy refused to respect boundaries