Four months after giving birth, "The Help" star Bryce Dallas Howard was spotted exercising her post-pregnancy legs on a walk with her adorable baby daughter Beatrice in L.A. this weekend.

The 31-year-old -- who also has a 5-year-old son with hubby Seth Gabel -- kept it casual on her mother-daughter afternoon excursion in a pair of comfy sweats and slippers.

Bryce -- who's currently nominated for an MTV Movie Award for "Best On-Screen Dirtbag" -- knows raising two kids is a total workout.