Sean Penn steps out with new girlfriend

(People.com) -- The ink's barely dry on the divorce filing between Sean Penn and soon-to-be ex Robin Wright Penn, but the actor didn't waste time getting back on his feet with new girlfriend Jessica White in New York City.

On Friday night, Penn, 49, and White, 25, had dinner at Hotel Griffou (both ordered the chicken and drank vodka) before heading to the Mercer Hotel.

"They were holding hands. They seemed really into each other," a source said. "She was laying on him. She was laying on his shoulder. They were lounging around. He seemed really into her."

The next night, Penn and his Sports Illustrated swimsuit model companion, who met at a birthday party at Kid Rock's house last month, arrived hand-in-hand at Abe & Arthur's in the Meatpacking District for model Noemie Lenoir's birthday party.

"They are together all the time," a source said. "They are pretty serious together. She wants to get serious with him and it seems like he is really into her too."

Penn had previously been spotted out with model Petra Nemcova in 2008. The following year, when tabloids reports linked the Oscar-winner with Natalie Portman, Portman made it clear they weren't an item.

"Sean Penn is a friend and colleague," she said at the time. "The reports that we are romantically involved are completely untrue."

The actor and Robin Wright Penn announced they were divorcing last August after a 13-year marriage with many ups and downs.

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