Comic books feature the most perfect human, and non human (but still basically human tbh), bodies that a 13 year old boy can awkwardly oogle at the back of a bookstore, and the casting for cinematic interpretations of these characters have been consistently on point. So what do these muscly specimens of perfection do with their shrines of zero percent body fat? They fuck. A lot. And we know this because the closest things we have to super humans are olympic athletes, and when they get together they can't help but screw like the peak humans they are.
Anyway, Marvel Movie Sex Moves.