Eva Mendes has gushed about boyfriend Ryan Gosling calling him "amazing."

The 37-year-old opened up to Marie Claire about working with her beau on their movie The Place Beyond the Pines.

But she was coy about going into details about their hot new romance.

"He's your dream co-star," the brunette beauty told the publication. "I have never felt so creatively satisfied on a film. He's amazing."

But when pressed for more intimate details of their union, Eva said she wanted to keep that information to herself.

"Stop, just stop," she laughed with the magazine's reporter. "I'm not gonna budge. I feel uncomfortable talking about it. It's too personal."

She also did not want to elaborate on prior comments about her views on marriage or becoming a mother, but for a superstitious reason.

"Those are such boring topics to me," she said. "I am not that girl. I don't like talking about things that I want in the future because I feel by verbalising such things, they won't come true."

Eva and Ryan were seen enjoying a romantic date in Bangkok recently where the actor is filming his new film Only God Forgives.

"They walked hand in hand to dinner at Japanese restaurant Nippon Kai on Feb. 2," an eyewitness told American publication Life & Style. "They were very quiet and everyone left them alone. And in person Eva is even more beautiful!"

Sources say that the Drive actor has fallen "hook, line and sinker" for the Latin-American beauty and is "obsessed" with her.