They have been in a relationship since 2011.
So no wonder Ryan Gosling looked so excited to be celebrating partner Eva Mendes birthday in Los Angeles on Monday.
The couple were joined by family members as they prepared to enjoy an intimate bash surrounded by their loved ones.
Ryan, a relative youngster at just 36, had dressed to impress on his partner’s big day in a flannel shirt, black jeans, boots and brown jacket. He rounded off his look with a baseball cap.
The star, who lost out on a best actor Oscar last month, looked like he could hardly wait for the festivities to began as he waited outside.