Los Angeles - Kristen Stewart doesn't think it would be "true to her" to discuss her sexuality.
The American Ultra star - who previously dated Robert Pattinson and is rumoured to be in a relationship with Alicia Cargile - prefers to be ambiguous as she doesn't think her personal life is relevant to her career.
She said: "If you feel like you really want to define yourself, and you have the ability to articulate those parameters and that in itself defines you, then do it. But I am an actress, man. I live in the fucking ambiguity of this life and I love it. I don't feel like it would be true for me to be like, 'I'm coming out!' No, I do a job.
"Until I decide that I'm starting a foundation or that I have some perspective or opinion that other people should be receiving...I don't."
And the 25-year-old actress thinks defining people's sexuality will grow increasingly unnecessary as time goes on.
She added in an interview with Nylon magazine: "I think in three or four years, there are going to be a whole lot more people who don't think it's necessary to figure out if you're gay or straight. It's like, just do your thing."
The Twilight Saga actress also insisted older stars have no idea the pressure young actors are under because of the media attention they receive.
She said: "It's funny when older actors are like, 'Just give them a smile.
"I'm like, 'You have no idea what you're talking about, but thanks!' It must've been awesome without the internet."