Anyone who has ever started a fitness routine knows how much dedication it takes to stick with it. No wonder then, that people hire personal trainers to literally whip them into shape. But we spoke to three celebrity couples, who have decided that the best way to optimise their workout routine, is to exercise together. Be it Yoga, crossfit, or just taking a jog - sweating it out together not only helps them push each other, but also helps them become a better couple.