Dakota Johnson finds sex scenes "pretty tedious".
The 26-year-old actress has stripped off for a number of raunchy scenes in Fifty Shades of Grey and its sequels but admits she is completely "over it" after "simulating sex for seven hours straight".
She told Interview magazine: "I'm filming the next two installments of the Fifty Shades movies back-to-back. I'm doing one [of the sex scenes] today. It's not ... comfortable. It's pretty tedious.
"We're not having actual sex. But I've been simulating sex for seven hours straight right now, and I'm over it."
Meanwhile, the How To Be Single star previously revealed men are too scared to ask her out because they think she is into the same things as her character.
Referencing the racy S&M scenes in the movie, she said: "Some people think this is something I'm interested in, in my private life, which is not the case. I'm an actor, I pretend.
But I guess it's something that happens with a lot of actors; people think that, in real life, they are like the characters they play ...
"Luckily I have such a distraction in my job, I don't think about men very often. All of my focus is on my job at the moment."
- Bang! Showzbiz