From Megan (thanks!):
Maybe you have heard of it, but this BDSM erotica Twilight based fan fiction novel called Fifty Shades of Grey got picked up by a publishing company, topped the New York Times bestsellers list and has caused many a media stir. Here is one article about it: link.
I started reading it a bit out of curiosity, and if you can get past the atrocious grammar and writing, it might prove to be an interesting read for some. Or at the very least, a look into BDSM culture (which I will admit I know very little about). It's definitely NC-17 content....maybe I'm new to the whole dom-sub thing but if any guy treated me this way, I'd give him a good right hook to the nose!
You can purchase it here.