So I have an online friend who writes awesome stuff. Smashwords currently has a free promotion thing going on, so if you want to read some excellent and thoroughly filthy porn, check it out, yo.
Pride and Prostitutes (My personal favourite. Filthy, hilarious and well written, all in one!)
https://www.smashwords.com/books/view/51551 Witches' Mark
https://www.smashwords.com/books/view/95012 And a short horror/thriller/creepy as shit story written by her husband, which gave me the absolute heebie jeebies:
Cold Lady.
https://www.smashwords.com/books/view/96847 Free if you use the code RW100 at checkout.