What makes Fifty Shades of Grey so popular?
'Fifty Shades of Grey' is a novel that is mesmerizing women all over the country.
It's the hottest book since Harry Potter, but this isn't a book for kids to read.
Why are so many women reading 50 Shades of Grey?
What does a sex medical expert say about it?
It's a special report, tonight on NewsChannel Five at 11.