http://www.news.com.au/entertainment/story/0,28383,25459765-7485,00.html
fistful better pray nothing happens to Sean Penn because his is the first door the cops are knocking on.
SEAN Penn's marriage to Robyn Wright Penn reportedly ended because he had started seeing actress Natalie Portman.
Star magazine reports Penn, 48, and Portman, 27, have been together since at least March 17, when spies say they were spotted kissing for over 45 minutes at the Tower Bar in LA's Sunset Tower Hotel.
The pair first got to know each other when they teamed up in May 2008 as jury members at the Cannes Film Festival in France.
"She stimulates him in ways no other person has, mentally or professionally," a source told Star magazine.
"There's a lot more there with Natalie than any of the other girls Sean's been with."
The Penns filed for divorce in April citing irreconcilable differences.
It was second time they started divorce proceedings - the first was in 2007 but they got back together.
Penn failed to mention Robyn when he accepted his Oscar for best actor in Milk last February.
fistful better pray nothing happens to Sean Penn because his is the first door the cops are knocking on.