Jennifer Aniston is a Mommy!

Jennifer Aniston takes on the role of mother-of-three while filming new scenes for her upcoming movie Marley & Me in Philadelphia, Pennsylvania on Friday.

Also in the scene with Jen, who plays Jennifer Grogan, was costar Owen Wilson, who plays the father, John Grogan.

Marley & Me, based on the memoir by John Grogan, is about a family that learns important life lessons from their adorable, but naughty and neurotic dog.