Sex scenes may look hot and steamy on screen, but behind-the-scenes, there's actually a lot of work involved.
In fact, sex scenes that were in filmed in the past few years have practically become stunt work, with lots of prep and choreography — and celebs are spilling the secrets about how it's really done.
Here's what these stars had to say about how sex scenes are filmed:
Phoebe Dynevor says sex scenes have to be well rehearsed and "practical."
Jonathan Bailey noted that there's always at least three barriers separating people.
But Sarah Silverman says that it hasn't always been that way, and in the past, there was sometimes nothing between her and her costar.
Dakota Johnson shared that you sometimes have undergarments glued to your body.
Natalie Portman admitted that the whole thing can get really awkward when you know your costar IRL.
Blake Lively revealed that sex scenes are sometimes shot on the first day of filming.
Olivia Wilde says there used to always been a ton of people in the room — but she's working on changing that.
And Chris Pratt says that a lot of responsibility falls on the male actor to make sure their partner is comfortable.