Holly Madison has left the playboy mansion, and along with that she has left her former tv-show and co-stars, of Channel E! ‘s The Girls Next Door. It seems Madison has already made quite a well adjustment to the change and moving in onto the territory of Mtv’s The Hills.

On Tuesday, September 30, The Hills cast members were out and about celebrating Lo Bosworth’s birthday, and right in the middle of the celebration was spotted Holly Madison. Holly was wearing a white long-sleeve button-up, was seen whispering in the ears of Brody and Frankie all night long, even though she was apparently unconcerned with the usual curfew restrictions imposed by her longtime boyfriend.

Sources say, “Brody and Holly, along with some friends, shared dinner together at STK prior to the party. Brody reached over and put his arm around Holly’s chair.”

Bosworth commented to the speculation of Holly making appearances on The Hills by saying, “We have mutual friends. But I don’t know Hugh Hefner.”