Keira Knightley posed naked for Vanity Fair with hairy legs, because she forgot to shave before stripping off. The actress admits she's lazy when it comes to grooming and overlooked the important act before posing with Scarlett Johansson for the glossy magazine. She says: "I thought, 'It's the cover of Vanity Fair, I'm 20, it's now or never.' I hadn't shaved my legs but everyone was all right with that. "I'm not completely comfortable with my body but I just thought, 'F**k it.'"