Kate balls of fire!

Model Kate Upton is on a roll, and she talked with Shape magazine about keeping fit. Turns out this beauty is also something of a beast, at least in the gym. The 25-year-old says she’s heavily into weight training, pushes a sled with 500-pound weights across the floor and does hip thrusts with a 200-pound bar across her lap. Listen to me, “here I am bragging,” she says with a laugh.