Adrian Grenier dating Ashley Greene?

Adrian Grenier and Ashley Greene were spotted with each other over the weekend.

The Entourage star and Greene met on Friday at a welcome dinner for the Oakley-sponsored 'Learn To Ride' surf weekend in Santa Barbara, California, People reports.

"[They] got super cosy all weekend. They were very cute," a source said. "They were hanging out nonstop and they only met Friday. They spent the whole time together - surfed together - everything."

On Saturday, the pair met up again for a barbeque at the El Capitan Ranch and were reportedly "flirting and dancing close all night long".

The insider added: "They held nothing back dancing - it was pretty intense."

Grenier ended his relationship with actress Isabel Lucas last year, while Greene was romantically linked to her Twilight Saga: New Moon co-star Jackson Rathbone.