According to the New York Post, La Lohan has been keeping company once again with former beau Stavros Niarchos, and it's so serious that when the Simple Life dimbulb, another of his exes, hit on him at a recent party, he didn't just reject her, he left. The clueless Hilton, a source says, was later seen going up to people and "asking where Stavros had gone".... Gossip Girl's Leighton Meester tells People that it is absolutely "not true" that she is involved with costar Chace Crawford. Which is likely to come as a relief to his girlfriend, Carrie Underwood.... Crossing Jordan's Jill Hennessy and husband Paolo Mastropietro welcomed into the world their second child on Nov. 21, People reports. Little Gianni's older brother, Marco, is 4.