Superhero erotica is when grown-ups write stories or make movies about superheroes doing sexy things. They imagine what happens when superheroes like Iron Man, Spider-Man, Wonder Woman or Superman fall in love or get a little bit naughty. It's kind of like romantic stories, but with lots of sexual parts too! Sometimes, people like to read or watch superhero erotica because it's exciting or different from other types of stories. But it's important to remember that superhero erotica is only for adults and should not be shared or watched by kids.