Hilary Duff carried her son, Luca Comrie, as they enjoyed an afternoon in Beverly Hills yesterday. Hilary wore black framed glasses and carried a navy and orange Marc by Marc Jacobs diaper bag as she balanced Luca on her hip. While Hilary doted on Luca during their recent outing, the new mom recently revealed that she might be done having kids. She said, "Mike [Comrie] and I are literally obsessed with Luca. We're like, 'He's perfect. We should just be one and done.'" Hilary's love for her little one might be why she is currently in second place to be named our favorite new celebrity mom of the year — don't forget to vote!