Ali Larter is on a mission to get back her pre-baby body, and she has no problem taking newborn Teddy to the gym along with her. The actress has admitted to gaining 45 pounds during her pregnancy.

Theodore Hayes MacArthur, who was born on December 20, looks cozy in his carseat as the 34-year-old actress holds on tight to her bundle while arriving home.

The former Heroes star, married to actor Hayes MacArthur, recently told Us: "We are so cocooned at home. We eat, snuggle, take walks in our yard."

Sounds like pure bliss!

See a photo of Ali just before giving birth ... after the jump.