On Monday Mel Gibson (53) was spotted at his Costa Rican ranch with Oksana Pochepa (24), who Mel appears to be dating. A witness said of the pair:

"Mel was laughing and joking. He did not look at all worried or concerned. You would never have guessed he is going through what could be a very expensive divorce."

Mel and Oksana have been dating for over a year according to Oksana herself. Oksana, who is a Russian popstar and model, said:

“We are different people, but Mel is a grown man and knows precisely what he wants and me too, I know what I want.”

“I would not like to say more right now.”

Oksana claims to have visited Mell on the set of a movie in Boston last summer.

Other reports say Mel might be dating more than one blonde. Mel and his estranged wife Robyn have been separated for 3 years, right after he was arrested for DUI, according to divorce papers filed by Mel’s attorney.

Click here to see Oksana’s Maxim pictures.