Hilary Duff and her sister Haylie enjoyed some sibling bonding time yesterday, stepping out for a casual meal in Studio City. The Lizzie Maguire star donned blue skinny jeans that showed off her post-pregnancy slim down, but her older sis appears to have gained a couple pounds, opting to hide her bod behind a loose fitting white dress.

Hil's hubby Mike Comrie must have been on daddy duty taking care of their infant son. Aww!

Luca's mommy has a lot to be excited about these days! The 24-year-old just inked a development deal with 20th Century Fox for a new TV comedy, and she's back in the studio revamping her singing career.

A lot of new moms slow down after giving birth, but not Miss Duff!