But not content with her secret A-list hook-up, Jennifer Aniston later indulged in a romantic night out with a sexy mystery date.

At a Sting concert in LA, onlookers noticed Jennifer Aniston had a man with her - and they weren't being shy about showing physical affection for one another.

"There was a lot of kissing going on," says a witness. "They were more than just friends.".

"Jen and her guy held hands and made lots of eye contact," says a source.

After the gig, the loved-up pair went backstage to chat with Sting, before heading out for a decadent, $2000 meal with another couple.

"She was having a great time," says a source.

"The evening seemed like it was a test by Jen to see if he could really cope with the crazy world that is her life," says the source.

"And it looks like he passed!"