FAST-TRACKED Audrina, Whitney, Lauren, Stephanie (inset) (Photo: Getty Images) Those angels at MTV bestowed not one but two episodes of The Hills on the world Monday, and happily, each made much of the show's ascending sidekicks. With a two-faced charisma akin to Milton's Satan, Stephanie Pratt slithered in, apologizing to Lauren Conrad for her meddling ways, helping Heidi cleanse the apartment of Spencer, and feigning surprise that a café would have Eggs Benedict on the menu. Just like Hollandaise sauce, she cannot be trusted. Also stepping into the spotlight, Whitney and her Modigliani eyes. On the rise in the professional ranks, Whitney's ditched Teen Vogue for a fashion PR company, where she's honing her "meaningful voice"—the one about leather pants.