After dismissing rumors her marriage to aristocratic British property heir Justin Portman was troubled, Russian supermodel Natalia Vodianova had a long, cozy lunch with another wealthy man, Sasha Pesko, yesterday. The beauty, a face of Gucci, was spotted dining with the handsome financier — also known as Aleksandar Pesko and previously linked to Spanish model Eugenia Silva — at Nello after a stroll in Central Park. Leaving the restaurant, Pesko tried to hide his face and told a photographer, “It wouldn’t be good for me” if the photos came out. Last November, the 29-year-old model, who has three children with Portman, dismissed reports that her marriage was in trouble as “rubbish” and added, “I want to have at least two more babies.”