Jennifer Garner denim child party sunglasses ben affleck daughter Ben and Jen have one happy little girl!

Jennifer Garner took her daughter Seraphina to a children's birthday party today in LA, and the adorable little one flashed us a huge smile as she was carried by her mom. Aww how cute!

The 40-year-old actress kept it casual in rolled up jeans, a striped top, and a yellow cardigan, but even under all those clothes we can tell the Butter star is already on her way to reaching her pre-pregnancy weight!

Ben Affleck must have been at home on daddy duty with Violent and Samuel! We wonder if he organizes playdates with Matt Damon and his brood?!