Sometimes you watch movies and the sex scenes are SO sexy, you wonder if the actors in them are actually doing the deed (not these ones, obviously). Apparently, there are a few cases where that was the case, and the actors on screen were truly getting it on behind the camera.

Via BuzzFeed, here are 5 movies where the actors actually had sex!

Bad Bunny (2003): Chloe Sevigny actually went down on her costar Vincent Gallo.

Netflix’s Love (no longer available on the app, boo!): in the opening scene, the couple lays totally naked in bed, pleasuring each other to climax with their hands.

Caligula, which starred Peter O’Toole and Helen Mirren in 1979 was pretty much overflowing with hardcore, unsimulated sex.

Michael Winterbottom’s 2004 film 9 Songs features masturbation, fellatio, and even a foot job.

Lars von Trier’s 2013 film, Nymphomaniac: Shia LaBeouf, Charlotte Gainsbourg, Stellan Skarsgård, and Uma Thurman all perform in unsimulated sex scenes in the film — sort of (from the top up, it’s the stars, but the bottom down is body doubles!)