Jake Gyllenhaal says he and Anne Hathaway have a natural "rhythm" when they film sex scenes.

The two stars shoot several raunchy scenes together in new comedy-drama movie 'Love and Other Drugs' but Jake already knew what to expect from Anne In The Bedroom because they had successfully 'romped' in 'Brokeback Mountain'.

He said: "Annie and I had already had sex on film in 'Brokeback Mountain', so I wasn't too nervous. There's something about the way Annie and I both work which is inherently very musical. It's all about rhythm. There's a rhythm to writing, there's a rhythm to sports and there's a rhythm to sex."

Jake also admits he and Anne spoke in great detail about how their characters in the movie should have sex and insists the conversation got quite steamy.

The 29-year-old screen heartthrob plays pharmaceutical salesman Jamie Randall who ends up bedding Maggie Murdock, played by Anne, when he tries to sell her a sex-enhancement drug for men.

In an interview with the December UK issue of Esquire magazine - on sale Thursday November 4 - Jake said: "We talked about what we thought was sexy, about what were the things that interested us, and through the discussion became pretty intimate with each other."

Jake - who is believed to be dating Taylor Swift - loves working with 27-year-old Anne because she completely embraces every aspect of her characters.

He explained: "I feel like she's a comrade. The thing about Anne is that she develops her characters in absolute detail. To the point where she went down to the Lower East Side to buy fluorescent bras for her character. I knew Annie could f***ing kill it."