Superheroes have a considerable presence in our society and dominate popular media for boys and men, while often representing unattainable muscular ideals. The present research is the first to examine the effects of superheroes on men's body image and the moderating role of parasocial relationship status (PSR; a one-sided psychological bond) on those effects. Men who had vs. did not have a PSR with a superhero were exposed to a muscular vs. non-muscular image of that superhero. As predicted, exposure to a muscular superhero with whom a PSR did not exist made men feel bad about their bodies (Hypothesis 1). However, having a PSR with a muscular superhero not only eliminated the negative effects of exposure on body satisfaction, but also increased men's physical strength (Hypothesis 2). This research suggests that muscular superheroes change men's body image and that the direction of that change is determined by PSR status.