The love Jennifer Garner has for son Samuel, 6 months, is unlike any she's ever known.
Already mom to daughters Violet, 6, and Seraphina, 3, with husband Ben Affleck, 40, the Odd Life of Timothy Green actress, 40, has only just begun to appreciate the joys of raising a baby boy.
"Samuel's at an age where he is starting to do more," a Garner pal recently told Us Weekly. "He has been so much fun for her and such a different experience from the girls."
The pal adds that Samuel is "super chill and go-with-the-flow, but a total mama's boy."
Garner got pregnant with Samuel two months after wrapping production on the Odd Life of Timothy Green. After discussing it with her husband, the West Virginia native decided to take a break from acting to focus on family. "We thought it was a good time to have another," Garner recently explained to Us. "I really do value work, but I didn't take a job unless there's something in it that I need to do -- and that is just not that often."
Like Brad Pitt, 48, and Angelina Jolie, 37, the A-list actors take turns being the primarily present parent with each film project. "Ben took a break from his work to come to Atlanta to be Mr. Mom," Garner raved of her longtime love, who recently finished filming Runner, Runner with Justin Timberlake, 31. "It's a lot to juggle."