I have no doubt this will be hugely popular:

<< Jumping on the Fifty Shades of Grey bandwagon, along with the rest of UK publishing, the small press is about to launch erotic rewrites of classic titles including Pride and Prejudice, Northanger Abbey, Jane Eyre and A Study in Scarlet. "There is no doubting the fact that the classics remain an inspiration to writers, even today, with many complex and thought-provoking storylines. But if we are honest to ourselves, haven't we heard the same reserved tale told time and time again?" says the publisher. "We'll show you the scenes that you always wanted to see but were never allowed ... The old fashioned pleasantries and timidity have all been stripped away, quite literally. You didn't really think that these much loved characters only held hands and pecked cheeks did you? >>

http://www.guardian.co.uk/books/2012/jul/17/fifty-shades-classics-erotic-rewrites