Fever by Maya Banks

This

 is the second book in her Breathless trilogy, book one was Rush. This book is about Jace, Mia's brother, and Bethany, a young woman who has been taking care of herself and her foster brother for a long time on the streets. 

This book, I think, was much more "50 Shades of Grey" than the first one. There was some BDSM, which I think was a bit darker than FSG. Jace is extremely possessive and dominating, which makes me as a very independent female want to smack him around a bit because to me its more like he is disrespecting her, but to each their own. 

It will be interesting to see what happens in the last book with Ash, Burn comes out in May .