In her new movie “Sex Tape,” Cameron Diaz gets naked on camera for the first time.

“It’s a first for me,” the actress said in the August issue of Esquire. “But Jason [Segel] gets naked, too. It’s just a part of the role. So I did it. I mean you see everything.”

That’s part of what really appeals to Diaz, the chance to do something new on each project.

“It’s a weird job, right?” the actress said. “I found myself in a room in the middle of nowhere Massachusetts at 11:00 at night doing a childbirth scene, and everybody’s screaming at one another — Jason, the cameramen, the director. And me acting like I’m trying to push a basketball out of my vajoon. Crazy s—t, right? And the thing is, I always take a moment to say, ‘We’re lucky. This is a great job. A fun job.'”

Diaz loves trying out new things, in life and in her work, because at this point in her life, she’s come to realize there’s not much worth fearing.

“I like being forty-one,” she says. “I love it. So much s—t just falls away. Fear, mostly. It’s the best age. That’s when a woman knows how to work things, or she doesn’t care about that anymore. You just stop being afraid. You don’t worry about what men think. You just don’t worry that time registers anything awful.”

“Sex Tape” arrives in theaters on July 18.