London, February 13 : Mila Kunis has vowed that she will never get totally naked on screen.

The 29-year-old, who was recently voted the world's hottest woman, had a lesbian sex scene with Natalie Portman, 31, in Black Swan.

And she flashed a "side boob" in comedy Friends With Benefits.

"I showed side boob. I don't need to show ass. You get one or the other. You don't get both," she told the magazine," she told Allure magazine. (ANI)