Charlize Theron has fueled rumors she and Sean Penn are set to wed. The 38-year-old actress - who has been romancing the
Milk star for eight months - was spotted in Los Angeles International airport on Wednesday sporting a huge diamond ring on her engagement finger, prompting speculation her 53-year-old beau has proposed. The sighting of the ring comes just a week after it was claimed the pair are planning to tie the knot in the
Snow White and the Huntsman star's native South Africa in the coming months. A source said: ''They want to get married very soon.'' And Charlize - who has two-year-old adopted son Jackson - is reportedly keen to adopt a child with Sean shortly after they've exchanged vows. The insider added: ''Charlize always intended to have another child.'' Sean - who already has 23-year-old daughter Dylan and 20-year-old son Hopper with his ex-wife Robin Wright - has also been bonding with Charlize's young son. The insider added: ''He is a father figure to him.''