Wildly-flexible Kate Beckinsale is back to bending her killer limbs – this time, for a roll-a-round her kitchen floor. The "Underworld" actress' weekend Instagram update, bringing both her super-slim figure and a dog, included a little horsing around, some optical illusions, and a major designer injection. Kate, 47, was looking closer to a 21-year-old as she flaunted her tiny waist, with a slicked-red pair of red-bottom soles shouting out the British beauty's love of luxury apparel. Yes, Kate was in Christian Louboutin boots. Check it out below.