Mila Kunis had "no problem" with Justin Timberlake taking his clothes off for their new film.

The pair - who are rumoured to be dating - star together in new comedy 'Friends with Benefits' and while the actress admits some of their sex scenes were "uncomfortable" she says the Friendship she has with her co-star helped put her at ease.

She said: "I didn't have any problem with Justin taking his clothes off. But I'm incredibly insecure about my figure in my private life, let alone in front of 50 crew members. There was a lot of insecurity.

"There were awkward moments, but the great thing was that Justin and I were friends, so at least I was with someone I knew who was also uncomfortable."

Mila shot to fame after appearing in 'That 70S Show' and she admits her commitment to the TV programme initially made it difficult for her to break out into film.

She told the Daily Telegraph newspaper: "It wasn't easy. People want to put you in a box and presume you can do only one thing, so I decided to take it upon myself to prove everybody wrong."