Ryan Gosling and Emma Stone Kissing on Set Pictures

Emma Stone and Ryan Gosling got flirtatious as they shot The Gangster Squad yesterday in LA. Emma kissed Ryan and played coy under a parasol as the pair filmed the period piece. Ryan got some love from a four-legged bulldog costar as well. Emma and Ryan are teaming up for the second time on the big screen, having already played a couple in Crazy, Stupid, Love earlier this year. Ryan and Emma looked every bit in love when they were in character yesterday, but when the cameras stop rolling, it's another of his costars that Ryan seems to be pursuing a real romance with — Eva Mendes. Ryan and Eva were spotted hiking in LA over the weekend after taking a romantic date to Disneyland earlier in the month. The two have been linked since they worked together on The Place Beyond the Pines, and Eva isn't the first costar that Ryan has dated. He was also with his The Notebook leading lady Rachel McAdams for several years, and struck up a love affair with Sandra Bullock after they worked on Murder by Numbers, both of whom Ryan has gushed about in recent interviews.