Kylie Jenner Thong Bikini Pool Candid Set Leaked. Kylie Jenner is an American media personality known for being a family member featured on the reality television show Keeping Up with the Kardashians. She is the daughter of Caitlyn Jenner (aka Olympic athlete Bruce Jenner) and Kris Jenner, and is the younger sister to Kendall Jenner, and half-sister to Kourtney, Khloé, and Kim Kardashian. See more of her here.