Not sure about you, but we loved the back-to-camera flirtation that Cameron Diaz and Jennifer Lopez showed while presenting at the 2012 Academy Awards ceremony. Loose Latin translation: Buttus Biggus Bellus. Anyway, Diaz: How about those guns? Here (above) she is at the Vanity Fair party, with nice definition. There is no doubt she's earned it. But you don't get arms like hers without without blood, sweat, tears, and reps.