The model, 33, displayed her edgy sense of fashion while Diane, 47, looked stunning in a black mini dress - as the duo led stars at the H&M Studio party in New York.
Julia Fox Embraces Dominatrix Roots at New York Party aceshowbiz.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from aceshowbiz.com Daily Mail and Mail on Sunday newspapers.
In her new memoir Down And Out, Julia bared her past as a dominatrix in New York City during the early days of her career. She worked for a time at a sex dungeon in Manhattan.