While one Simpson sister is working on filling out her pregnancy curves, the other looks skinnier than we've seen her in a while! Ashlee Simpson left people wondering who she was at Richard Chai's New York Fashion Week show Thursday morning. The blonde sat front row for the event, and turned heads for her seriously skinny frame. Ashlee's always been a tiny girl, but this is a new weight low! Ash, if you're tuning in, we think you look beautiful, just promise not to lose any more weight!