Jennifer Aniston and Vince Vaughn Have Bust-Up  8/22/06

Hollywood stars Jennifer Aniston and Vince Vaughn made their first public appearance together at the Teen Choice Awards on Sunday (20AUG06) night - and pretended to have a fight.

Aniston and Vaughn, who have been romantically linked ever since Aniston split with ex-husband Brad Pitt, won the Teen Choice Movie Chemistry Award for their performance in The Break Up.

And the pair couldn't resist having some fun with their acceptance speech, made via video link.

Vaughn said, "When you are dealing with on-screen chemistry, it isn't an equitable kind of thing..."

Aniston interrupted with, "It's not something that happens, it's something, you know..."

Vaughn then said, "I guess part of having chemistry is having someone cutting in the middle of a sentence..."

To which Aniston said, "I wasn't cutting in. I was just adding my thoughts to yours, you know, that's what chemistry is, two people talking, instead of one person just talking, talking, talking..."