In an interview, the wrecking ball star opens up about her sexual fluidity and says that she has told her mum she was bisexual at the age of 14.
The singer also claimed that her religious parents, who she describes as extremely conservative, found it difficult to accept at first.
"I remember telling her I admire women in a different way. And she asked me what that meant. And I said: I love them. I love them like I love boys," Miley said to Paper Mag.
Miley Cyrus, who was breaking out as Disney star Hannah Montana at the time, added: "It was so hard for her to understand. She didn't want me to be judged and she didn't want me to go to hell. But she believes in me more than she believes in any god. I just asked for her to accept me. And she has."
Back in May, Cyrus gave an interview to promote her Happy Hippie Foundation, which strives to help homeless and LGBT youth, in which she said that not all of her relationships had been "straight, heterosexual ones".
But in this most recent interview, Cyrus explains that she is open to a variety of sexual relationships. She said: "I am literally open to every single thing that is consenting and doesn't involve an animal and everyone is of age. Everything that's legal, I'm down with. Yo, I'm down with any adult - anyone over the age of 18 who is down to love me. I don't relate to being boy or girl, and I don't have to have my partner relate to boy or girl."
Cyrus adds that she's had past relationships with women, but that they haven't been brought into the media spotlight like her relationships with men.