Amber Heard, who is set to star in NBC's upcoming drama The Playboy Club, says she's never been in the closet.

The 25-year-old actress created a stir last year when she walked the red carpet at an event to celebrate the 25th anniversary of the Gay & Lesbian Alliance Against Defamation (GLAAD) in Los Angeles with her girlfriend of nearly three years, photographer Tasya Van Ree.

In an interview with Playboy, Heard said she doesn't want to be defined by her sexual orientation.

“First of all, to say I came out implies that I was once in. Let me be straight about that – no pun intended [laughs] – I never came out from anywhere. I've always lived my life the way I've wanted and have been honest with myself and everyone around me. It didn't really affect anything in my career. I don't think the producers and directors I've worked with care one way or another. The only frustrating part has been all the media attention. For someone like me who prefers to keep her life as private as possible, it has been disconcerting to have to define so much about myself. I don't want to be labeled as one thing or another. In the past I've had successful relationships with men, and now I'm in this successful relationship with a woman. When it comes to love I am totally open. And I don't want to be put into a category, as in 'I'm this' or 'I'm that,'” Heard said.

She added that she is passionate about marriage equality for “other people”: “It is an important issue, and I'm fighting for the right to get married. For other people.”

Heard also stars opposite Johnny Depp in the upcoming film The Rum Diary, set to open in December.