My friend Heather McElhatton recently published an adult choose your own adventure book called Pretty Little Mistakes.
You can read about it here:
http://prettylittlemistakes.com/Pretty_little_books.html

or buy it here:
http://www.amazon.com/Pretty-Little-Mistakes-Do-Over-Novel/dp/0061133221/sr=8-1/qid=1162581018/ref=sr_1_1/002-8535613-3474443?ie=UTF8&s=books