Before we go any further, I want to go on record about a few things.
First, I don’t like the term “mommyporn” that is being applied to the Fifty Shades trilogy. Mommies have as much right to sexual pleasure as anybody else, and they don’t need snobs looking down at them for their interests.
Second, I don’t like the judgment that, because this series was originally Twilight fanfiction, it is automatically and obviously subliterate trash. I’ve enjoyed reading fanfiction, and written and posted it too. Lots of fanfiction writers have graduated to writing professional fiction.
The relationship between original fiction and derivative fiction is a complex one, and worthy of at least a few posts, but isn’t really in the purview of this blog. Suffice to say, if a writer alters his or her fan work enough to not be blatant plagiarism, I say go ahead and publish it (or at least try). If by some fluke the work becomes a bestseller, well, ride that train.
If I could say anything to the millions of people who have bought millions of copies of these books, it is that there are BDSM erotica/romance books out there that are so much better in every way than this, and please give the authors and publishers of those books some of the financial support you’ve given to EL James.