Do Joe Jonas’ fans prefer Demi Lovato to Ashley Greene?

It doesn’t look like some of Joe Jonas’ fans think much of his new girlfriend Ashley Greene.

A fan has reported that Demi Lovato laughed out loud when she was a “Vampires Suck” banner at a recent gig – with Twilight star Ashley in the audience.

“I attended the Jonas Brothers show in Irvine on Sept. 19. While Demi and Joe were singing ‘Wouldn’t Change A Thing’ from Camp Rock 2, someone held up a sign that read ‘Vampires Suck’ while Ashley Greene was in the crowd,” says Ocean Up reader.

“Ashley started to mock Demi when she saw the sign and Joe and Nick [Jonas] walked over to that side of the catwalk and shook their finger at the guy holding it. Demi seemed to like it though. She was laughing.”

Joe dumped Demi earlier this year, and now things are reportedly getting very serious with Ashley – it was reported yesterday that Joe went to meet her parents.