Cameron Diaz hit the gym in Los Angeles yesterday before slipping into a short and tight minidress for the Teen Choice Awards in the afternoon. Cameron took home a TCA surfboard for her work in Bad Teacher, and in the press room she revealed her big secret to looking so fit is working out "consistently." Cameron capped off her Sunday by slipping into white jeans and a chambray shirt to have dinner with Jeffrey Katzenberg. Cameron was still sporting a healthy glow from her vacation visiting boyfriend Alex Rodriguez in Miami. A-Rod celebrated his 36th birthday at the end of last month, and Cameron has her own 39th to celebrate in just a few weeks on Aug. 30.