LOS ANGELES — Guys, get ready. Eva Mendes exposes “everything” in her upcoming film “We Own the Night,” and doesn’t hold back when it comes to her steamy sex scenes with Joaquin Phoenix.

“I trusted him. I trusted everybody on this and I just went for it,” she said.

But it wasn’t easy for Eva to take off her clothes and go all the way.

“The sex scene with Joaquin really wasn’t as good as it looked — these were nerve-racking scenes that are very technical and really scary,” Mendes said. “It was nothing to do with him, he is beautiful, but when you are exposing yourself emotionally and physically that’s so frightening … you have so many people around and the camera and it’s so scary.”

In real life, the actress admits she is still haunted by the memory of turning her back on true love.

“The hardest thing to do is walk away from someone you love,” Eva said. “It shows a lot of maturity — it is one of the hardest things I have had to do.”