Stephen Pasterino is a trainer for many Victoria's Secret models, and he's here to help you tighten and tone your butt and legs. This workout, which focuses on building long, lean muscles, requires no equipment. Get ready to work your backside in a whole new way. Want Victoria's Secret model workouts on the regular? Click here to subscribe to P.Volve for unlimited streaming workouts you can easily access on any device. Press play and get ready to feel the burn.