In an interview with The Hollywood Reporter, actress Kate Winslet stated that she and her costar Saoirse Ronan choreographed the sex scenes themselves for their upcoming romantic drama, Ammonite.

“It’s definitely not like eating a sandwich,” Winslet said.

“I just think Saoirse and I, we just felt really safe. Francis was naturally very nervous. And I just said to him, ‘Listen, let us work it out.’ And we did. ‘We’ll start here. We’ll do this with the kissing, boobs, you go down there, then you do this, then you climb up here,” she added.

Set in the 1800s, the Francis Lee-directed movie is based on the southern coast of England and follows the life of the paleontologist Mary Anning (played by Winslet) who develops an intense romantic relationship with a much younger married woman, played by Ronan.

“We marked out the beats of the scene so that we were anchored in something that just supported the narrative,” Winslet said. “I felt the proudest I’ve ever felt doing a love scene on Ammonite. And I felt by far the least self-conscious.”