As Lauren Conrad’s yummy steady on MTV’s The Hills, Brody Jenner’s living the high life – and becoming famous for being L.A.’s elusive Casanova. The son of Olympian athlete Bruce Jenner and songwriter Linda Thompson, Jenner lived in the lap of luxury as a self-described Prince of Malibu (synonymous with his failed FOX reality series). He grew up with step-sister Kim Kardashian and dated childhood pal Nicole Richie and Laguna Beach bad girl Kristin Cavallari. But it was his flirtastic tension with MTV heroine Lauren Conrad that made him a star.