From US Weekly (edited):
Rachel doesn't give up easily. A source tells Hot Stuff that Preston, found a surprised upon returning to his W hotel room in Chicago after attending a Vogue and Cointreau party-Rachel. "She snuck into his room at 4AM," our course says. The source reports that Preston told friends he declined Rachel's advances. However, other hotel guests spotted Rachel leaving his room at 9 AM. A rep for the show insists that there was no such hotel room visit: "They're just friends."