Jennifer AnistonJennifer AnistonJennifer Aniston has refused to deny that she is dating Vince Vaughn.

Asked on an American chat show if she was having a romance with her co-star in The Break-Up, she giggled: "I'm not talking about it, I'm not talking about it."

When CNN's Larry King kept on quizzing her, she repeated Larry's own words, saying: "Vince Vaughn, we love him... he's a national treasure."

She then added: "It's none of your business (but) you learn your lessons, that's all."

She also joked: "God, I'm getting out of here."

Jen appeared on the show to promote her new film Derailed, which also stars Clive Owen.

Vince VaughnVince VaughnThe Sun has claimed that Vince has sold his Hollywood Hills home to move in with Jen.

A pal told the paper: "He sold his place a month ago and has been staying at Jen's since then."

However, both stars have always denied they are anything but close friends.

Jen's divorce with Brad Pitt came through last month.

Brad is now rumoured to be in a relationship with his Mr And Mrs Smith co-star Angelina Jolie - although again, both stars haven't confirmed they are an item.