Popeater: Kim Kardashian isn’t shy about her bodacious bod. Last night, she previewed her 2011 calendar by making her Twitter background a photo from the shoot. In the photo, Kardashian is shown all oiled up, laying on her back and wearing a skimpy bikini. “New twitter background. It’s a sneak peak from an upcoming calendar shoot. It will be up only for one night!” she wrote on Twitter.