Jennifer Garner Shows Off Slimmer Post-Baby Bod in Sundress

Jennifer Garner may have given birth to her third child just four months ago, but she's already rocking flirty sundresses -- and flaunting her stunning, post-baby figure.

Over the weekend, Garner -- who welcomed son Samuel February 27 -- spent some quality time with her and hubby Ben Affleck's oldest daughter, Violet, 6. (The pair are also parents to Seraphina, 4.)

For both outings with Violet, the actress revealed a noticeably slimmer figure in a short cotton dress -- one black, one navy -- a cardigan, and strappy sandals.

PHOTOS: Jennifer Garner's adorable pregnancy

Recently, Garner opened up about her busy life as a mom while accepting the award for Female Star of the Year at CinemaCon in April.

"[My mom] said, 'Can they take this back? Because every time I talk to you, you are breastfeeding, you are running car pool, you are on the library committee -- you are not acting!'" Garner joked of her own mother's response to her honor.

PHOTOS: Jennifer Garner's life as a supermom

Later in her speech, Garner, 40, also thanked her husband for "taking over drop-offs and pick-ups and bedtime so I could make it."

Added "The Odd Life of Timothy Green" star of Affleck's hands-on parenting style, "And thanks for making me feel like maybe someday I will get to relax in a hair and makeup chair again and leave the maniacs at home with you!"

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