Kim Kardashian isn't shy about her bodacious bod. She continues to promote a healthy body image. This time around, she’s shamelessly posing for her very own 2011 calendar in a bikini. Wednsday 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.