Los Angeles: Hollywood actor Sean Penn has shown his commitment to actress girlfriend Charlize Theron by reportedly moving to adopt her three-year-old son Jackson.
The 54-year-old actor has filed paperwork requesting to become the adopted father to the little boy, reported People magazine.
This has fuelled rumour that a wedding is imminent between Penn and Theron, 39. The couple has been dating for over a year and has been the center of engagement rumours over the past few months, which they never addressed.
"Charlize and Sean are very serious," a source close to Theron said. "Charlize says this is it. Jackson already calls Sean daddy. This is the first step toward them getting married."
Jackson was adopted by Theron in 2012 when he was 4 months old. He is her only child. Penn, meanwhile, has a daughter, Dylan, 23, and a son, Hopper, 21, from his marriage to Robin Wright. He has no child from his first marriage to Madonna.