Hannah Montana starlet Miley Cyrus and her shirtless boyfriend, model Justin Gaston, work up a sweat together, taking a jog around her neighborhood Toluca Lake in the San Fernando Valley on Saturday (February 28). The day before, Miley, 16, and Justin, 20, were seen bicycling around the block and back. And the day before, the couple shared a date night out at Mo’s Diner.
