Donovan rose to fame in 2004, when she won Australian Idol at only 16 years old.
In 2011, Donovan fell madly in love with who she believed to be a man named Campbell.
After a number of years she discovered that Campbell, who she had met online, was actually a woman named Olga. Donovan wrote candidly about the experience in her autobiography Casey Donovan: Big, Beautiful & Sexy.
Donovan believes that this trauma was a catalyst for her subsequent sex addiction.
The 28-year-old explains that she used sex as a coping mechanism, and said it became as easy as “ordering pizza”.
Casey Donovan reveals all in her autobiography "Big, Beautiful and Sexy". Image via New Holland Publishers.