My first thoughts on finishing this book: 
 -Gah! It's a bit of a cliffhanger. 
 -It was SOOOOOOO good, but I was unhappy with the ending. 
 -A revelation near the end made me rethink the story and made me bit uncomfortable. (view spoiler)[ Although I saw Vivienne's rape coming and I figured that Jonas had been abused in some way, the abuse he suffered was more horrible than I'd imagined. I was ok with Vivienne acting out rape fantasies, but Jonas actiing as a rapist after he'd watched his mother raped so many times... that crossed a line for me. I think if I'd been in Jonas' head I might have been comfortable with his kink like I was with Vivienne's. But as it is, his revelation made me really uncomfortable with the fact that I'd found their fantasies sexy. That's an interesting reaction on my part, since it's basically Jonas' reaction to Vivienne's revelation. I don't know if the author did it on purpose or not. (hide spoiler)] 
 -I'm disappointed that the kink in this story is so linked to abuse. It was still a good story, but not as enjoyable to me as it would have without the abuse history. I was warned by the disclaimers on the book cover, so I can't hold this against the story. 
 -I have all of these problems with the story, but the truth is for 95% of it (all but the last few pages) I was captivated! It was so good! 
 The sequel is coming out in September, I believe. I think if I KNOW it will end the story and be an HEA, I'll read it. I don't know if I'm up to an extended series. This book was excellent, but it really walks the line of how much abuse I'm comfortable reading about. (Though the remembering/reliving the abuse is not the majority of the story.) 
 I need to think on this one some more and I'll post a more coherent review, but these are my first thoughts.