Hilary Duff: Luca Bonding Before NYC Flight!

Hilary Duff carries her sleeping son Luca while dropping by an office building on Friday (December 13) in Thousand Oaks, Calif.

Earlier in the day, the 26-year-old actress stayed in shape while heading to a morning workout in West Hollywood.

PHOTOS: Check out the latest pics of Hilary Duff

Later in the day, Hilary posted a pic of her small pet pooch Jak and wrote on Twitter, “nyc bound…” Check out the cute pic below!

FYI: Luca is wearing Cool Camo Babiators.

10+ pictures inside of Hilary Duff and Luca stopping by an office building in Thousand Oaks…