The latest addition to the Affleck clan has two sisters waiting for him at home

Nature has finally taken its course. That sizable bump that Jennifer Garner, 39, has been carrying around for the past few months has materialized into a baby boy — a first for the Alias actress and husband Ben Affleck, 39. The proud couple already have two daughters: Violet, 6, and Seraphina, 3.

Garner and Affleck, who co-starred in the film Daredevil in 2003, welcomed their third child in Santa Monica, Calif., on Tuesday, according to People. They had announced the pregnancy in August.

Soon, it will be back to the grindstone for the two hardworking stars. Garner will appear next opposite Oliva Wilde in Butter and in The Odd Life of Timothy Green, while the multihyphenate Affleck is busy working on directing and starring in the upcoming Argo.

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