Kristin C. won't comment on Nick

Kristin Cavallari was spotted out on the streets of LA but was in no mood to talk to the media about rumored love interest and Jessica Simpson ex Nick Lachey. Snappers caught the The 19-year old blonde 'Laguna Beach' star returning home yesterday and refusing to answer questions about her rumored new beau, Nick Lachey. The web site TMZ has the details and cites sources that claim Kristin was coming back from Nick's new Bel Air mansion. The web site reports: When the cameraman asked Kristin directly, "When are you going to see Nick again?" Kristin replied, "I'm not going to talk to you about that." Several of Nick's friends tell TMZ that they're worried Kristin is using the pop star to further her own career. [National Ledger] Thanks to Chrissy @ JJB for pics!