Kim Kardashian bares her toned tummy in a picture she posted on Twitter Oct. 24, 2012. The reality star recently told Life & Style that she's trying to shed some of the pounds she's gained since she began dating Kanye. Right, Kardashian attends the Cosmopolitan Magazines 40th Anniversary celebration at the Westin Hotel on Oct. 4, 2012, in Mexico City, Mexico. (@KimKardashian/Twitter; Victor Chavez/WireImage/Getty Images)