Pippa who? At 42 and with two kids, J. Lo still flaunts a rear end rivaling women half her age; her badonkadonk even has its own Facebook page. Williams, 30, admits that growing up, she constantly compared herself to older sister Venus: "I'm super-curvy,” she told Harper’s Bazaar. “I have big boobs and this massive butt. She's tall and she fits in everything.” But the Wimbledon champion has grown into her beauty, proclaiming that she is now content with being different because “different is good.” In a world of stick-thin supermodels, both stars ooze with cool confidence, proving that a bodacious booty can be a very good thing.