Super heroes and sexy seem to go hand in hand. Would you really want to stare at a Spider/Super/Batman who didn't have muscular abs and stretchy attire? That's not to forget busty female dazzlers like Superwoman and Catwoman. It's this train of thought, as well as the annual Heroes Convention (at Charlotte Convention Center June 22-24) that has Single Cell Productions' upcoming Purgatory sporting a "S&M Superheroes" theme.