Jennifer Aniston is doing little to quash rumours that she is dating her Bounty Hunter co-star Gerard Butler.

Not only did the actress invite Gerard along with her closest friends to Cabo, to celebrate her 41st birthday but she also sings his praises to Access Hollywood.

According to OK, Jennifer tells interviewer Billy Bush in an interview that air's tonight, “We just had so much fun together you know. He’s just fun. Gerry’s the most unpretentious guy.”

So she's allowed to call him Gerry eh? Very cosy...

“He’s a guys guy, but he’s absolutely the most lovely and sort of self-deprecating and just what you see is what you get. We look at work the same way…we always had each other’s back.”

We can't work out what is going on with the pair. Do you think they're dating or is all this just really good publicity for their film?

 Jen's men!