A mother of two -- daughter Charlotte became a big sister when brother Rocky was born in September 2012 -- the former Ringer star doesn't believe in obsessing over a number on the scale. Instead, Pilates devotee Gellar listened to her body when it came to shedding unwanted pregnancy pounds. "We don't even have [a scale] in our house. I've never believed in them, because your weight fluctuates," she tells Shape. "It's more about how my clothing fits than a number."