Characters dress up as recognizable heroes, villains, or pop-culture icons and then turn the costume into part of the sex. The outfits usually stay on during fucking, with masks, capes, armor bits, or tight spandex framing tits and ass while the roleplay leans into power dynamics and kink. You will often see extra attention on props and themed dirty talk, like getting railed “in character” while the costume gets tugged, ripped, or splattered with cum.