(PEOPLE.com) -- Despite their insistence they're "just friends," Jude Law and Sienna Miller are looking more and more like a couple again.
After reportedly snuggling up at The Box nightclub in New York City's Lower East Side November 19, the pair spent the wee hours of Thanksgiving cuddling over a late-night Italian meal.
"They stopped in just after midnight," a source at Emporio Restaurant told PEOPLE, and shared "a pizza."
Rather than hiding away in "a private seat in the back of the restaurant," the source said, the amorous duo opted to sit in the front, where they shared a $350 bottle of red wine -- and at least one passionate kiss.
"It was long and affectionate," the source said. "They were sitting across from one each other. They were offered a table in the back for privacy, but turned it down. They seemed to want to be seen."
For the last several weeks, the actors have both been starring on Broadway -- Law in "Hamlet," and Miller in "After Miss Julie."
Once engaged, in 2006 the pair ended their stormy two-year-relationship after it was revealed Law had an affair with his children's nanny.
Last month, amidst sightings of the pair around New York City, a rep for Law said they're "just friends, seeing each other socially occasionally as they are both on Broadway, performing just one block apart."
© 2011 People and Time Inc. All rights reserved.