Kim Kardashian Battles Mama Kris Jenner in Sexy Bikini Instagram Duel

Kim Kardashian posts sexy bikini shots on Instagram and mama Kris Jenner follows suit in what many Instagram users called a bizarre competition. As John Basedow (@JohnBasedow) reports, the Kardashians are notorious for keeping up with each other in bathing suit selfie pics but it's usually more of a sister-sister, than mother-daughter, thing.