Rob Gronkowski & Girlfriend Camille Kostek Lead a Sweaty Workout in Boston

Rob Gronkowski and Camille Kostek are breaking a sweat together. The 30-year-old former New England Patriots player and his 27-year-old girlfriend were seen leading a workout on Sunday (September 15) in Boston, Mass. PHOTOS: Check out the latest pics of Rob Gronkowski The two led a public workout as part of his Gronk Nation fitness