Some celebrities have managed to maintain their good girl image for years – think Taylor Swift and Anne Hathaway – while other have gone out of their way to get rid of it.
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Click through the gallery to see the celebrities who have done everything in their power to rid themselves of the good girl schtick.
The 18-year-old used to be the cute and innocent little sister to the Kardashians. Now, she's constantly posting racy photos.