Keira Knightley appears topless on the cover of Allure magazine’s December 2012 issue. Inside, she discusses her breasts and how they appear in movies: “They always pencil in my boobs. I was only angry when they were really droopy. For King Arthur, for a poster, they gave me these really strange droopy tits….I thought, well if you’re going to make me fantasy breasts, at least make perky breasts.” In the magazine, Keira also discusses whether she will get nude for a film: “I’m quite rigorous about what gets exposed,” she said. “No bottom half! I don’t mind exposing my tits because they’re so small—people really aren’t that interested!” For more on Keira and her breasts, click through to Allure.com or pick up the issue when it arrives on newsstands on November 20.