Nothing spurs a workout quite like a little competition. Actress Cameron Diaz squares off with her boyfriend Alex Rodriguez in outdoor bootcamp workouts to stay motivated, according to TMZ. From obstacle courses to flipping huge tractor tires and holding yoga poses, the two worked on their upper and lower bodies with rigorous workouts even when on vacation in Miami Beach. Get your beau involved in your workouts to stay motivated and score a little eye candy during your grueling sweat session. Start inspiring each other by working out together.