American actress Angelina Jolie has confessed that being pregnant has given her and partner Brad Pitt an unexpected sex boost.

Jolie, who is expecting twins, said that her "round and full" figure has given her a real lust for life, and when most couples find sex a turn off during the late stages of pregnancy, Jolie admits that she and Pitt just cannot get enough of it.

"It’s (pregnancy) great for the sex life. It just makes you a lot more creative, so you have fun," Contactmusic quoted her, as telling Entertainment Weekly magazine.

The Tomb Raider star admitted that all of it would not have been fun if she did not have a perfect partner, which Pitt is, as he is such a considerate father and boyfriend.

"We’ve worked out a system where Brad just lifts (the kids) to me every time they want to come up (for a hug). I just don’t bend down. I’ll scream, ‘Honey!’ and he’ll come running and lift them up"," she said. The actress is due to give birth later this summer in France.