Looking for Erotic books/stories where the bad guys wins?

I read a book awhile ago, where a wife was seduced by a random stranger and he basically ended up ruining her life and turning her into his own personal plaything. I think it was called rivers or something like that? Anyways, I’ve been dying to read a good erotic book again!

So I’m looking for suggestions for books where the bad guy wins or the heroine is corrupted. It could be in just about any form! From a wife being seduced by the “bad guy” to a good girl learning its more fun to be bad!