Looking forward to catching Tom Holland, the latest Hollywood incarnation of Spider-Man, in shiny new Marvel Cinematic Universe film Spider-Man: Homecoming?

If so, one thing you're probably not expecting to see is Holland's fresh-faced Peter Parker, the titular young hero, secretly spy on his teenage love interest, peeping tom-style, as she gets changed.

Likewise, you're probably not envisaging a scene in which Parker and the aforementioned love interest have sex on a bridge tower – right after the superhero has wooed his date by describing the mating habits of spiders, trotting out such fail-safe foreplay staples as "In certain crab spiders, such as Xysticus, the male will attach strands of silk to the female... tying her limbs...".