Australian singer/songwriter Missy Higgins has fuelled speculation about her sexuality by admitting she's "not so straight". The award-winning Scar hitmaker appears on the cover of an Australian lesbian magazine, Cherrie, telling readers that she believes sexuality is a "fluid thing". Asked whether she would define herself as a "not-so-straight" girl, she replies, "Yeah, definitely. I think a lot of people fall under that broad umbrella term. "I think sexuality is a fluid thing and it's becoming increasingly more acceptable to admit that you're that way. I don't think it's necessary to have to define yourself by any label. "If you're comfortable with who you are and you know who you are on the inside, people will love you for it."