There have been several sightings of Ryan Gosling and Eva Mendes together in the past few weeks, but it looks like things are getting serious!  The duo was photographed by x17online smooching while the car they were driving in was stopped at a red light.

This hot new couple formed when they became co-stars in the flick The Pace Beyond the Pines.  The news of Gosling being linked to a co-star isn’t surprising, as he previously dated Rachel McAdams and Sandra Bullock, both of whom he starred in films with.

What do YOU think about Ryan Gosling & Eva Mendes?!  Are they a serious couple – or just having some off-screen fun?  Sound off below and let us know!