Sean Penn Adopts Charlize Theron's Son Jackson

Sean Penn has filed legal documents to be the adoptive father to Charlize Theron's son Jackson.

"Charlize and Sean are very serious," a close source Theron, 39, revealed to People, noting: "Charlize says this is it. Jackson already calls Sean daddy."

The insider added: "This is the first step toward them getting married."


Theron adopted her only child Jackson in early 2012, when he was just 4 months old.


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