Hilary Duff: Bonding with Sister-in-Law Elizabeth!

Hilary Duff keeps it casual comfy while carrying her cute bundle of joy Luca to his Babies First Class on Thursday (March 28) in Beverly Hills, Calif.

The 25-year-old actress was joined by her husband Mike Comrie, who was spotted stopping by The Farm earlier in the day for breakfast.

PHOTOS: Check out the latest pics of Hilary Duff

On the same day, Hilary posted a pic of herself and tweeted, “#sissy-in-laws #troublemakers @ecomrie and I playing!!” Check out the cute pic below!

Earlier in the week, Hilary held Luca‘s pacifier in her mouth while he was sleeping.

15+ pictures inside of Hilary Duff and Mike Comrie taking Luca to his class in Beverly Hills…