Disney star Miley Cyrus is showing more of her rebellious teenage side as she tells of her love for a sexy novel. The 16-year-old star caused outrage in the past when she posed for a provocative photoshoot for Vanity Fair. More recently, she sparked controversy by pulling seductive poses with film director Adam Shankman. Cyrus wrote a message on her Twitter page, saying: "Reading 'Identical' by Ellen Hopkins. It is deff. in my top 3 favorite books of all time! So disturbing but beautifully written." The plot involves sex, drugs and alcohol and tells the story of the lives of identical twins. What do you think? Is Miley growing up too fast? Click here and let us know