Adds another source, Jude, a father of three, “is cute, funny- and he’s Jude Law!�? Lindsay has been telling friends that she is “taking things slowly.�?

Despite her new relationship with Jamie Burke, an ex of Lindsay, Sienna may not be officially over Jude. “Jude told Lindsay that Sienna asks him all the time about his new affair,�? says the source.

Lindsay on Monday, admitted she was dating.

"I'm dating," Lohan, told PEOPLE Monday at the Los Angeles premiere of Showtime's The Tudors. "I'm really happy and I'm having fun."

The actress, who split with restaurateur Harry Morton last fall was recently spotted chilling with Stavros Niarchos at Hollywood hot spot Teddy's.