Jennifer Aniston and Vince VaughnVince Vaughn remained non-commital about his relationship with Jennifer Aniston during an interview with David Letterman yesterday.

Jennifer and Vince have been rumoured to be an item and are frequently photographed together but have not yet officially confirmed that they’re a couple.

That didn’t stop David Letterman trying to provoke Vince into discussing it all. He started the interview by saying: “Hey, nice going on that Jennifer Aniston thing.”

Vince seemed amused and replied “It’s very nice of you to say that, Dave, thank you.”

“It’s been kind of interesting for me, and I just choose not to talk about my private life that much publicly.”

“I’m not saying we are or aren’t a couple.”

“I think she’s great, but I just don’t discuss whether we are.”