Photos have surfaced over the weekend of Gerard Butler and Jessica Biel riding together on Butler’s motorcycle in Malibu.

Their reps say the two are “just friends,” but they seem to be closer than that.

A source tells PEOPLE that, off the set of the film Playing the Field, Butler and Biel were “friendly but professional.”

Seems like the two are mixing business and pleasure.

One source says the two stars were spotted at Tokyo Japanese Restaurant together, talking and laughing and Gerard was even eating off of Biel’s plate.

Has the ladies man finally settled down for Justin Timberlake’s ex or is this just a Summer fling?

I say fling, but we will just have to see.