I read this series last year and I'm now listening to the audio version so I am leaving a review based off of how I feel a year later and listening to the series all over again. 
 At risk of repeating myself from my review from the first book in the series, I can't help but start this review to clearly state that this book series is my absolute favorite series out of everything I have read. The clear devotion of James to Bianca is pretty intoxicating. Who wouldn't want a billionaire who could have anyone or anything he wants choose you and to choose you 100%? 
 James has lead a very wild life since losing his parents at such a young age to only be abused by a cousin and then later raised by a very emotionally cold aunt. He strikes out as soon as he is 18 and indulges in woman for years until he meets Bianca. His experience with his cousin has made him need absolute control. BDSM is where he gets that control but he has very few people in his life he cares for or even trusts. 
 Bianca witnesses her father kill her mother at a very young age and she runs away to save herself, meeting Stefan, who becomes her brother and best friend. Stefan protected her while they lived on the streets and an occasional foster home and has been the only man in her life that has every loved and protected her. She trusts no one else. 
 James having been with so many woman and feeling nothing, knows the minute he lays eyes on Bianca that the feeling he gets actually means something and he will stop at nothing to claim her. Bianca does not make this easy for him. He is the first man who has ever made her feel anything as well but she is so used to keep people at a distance she fights to keep him at arms length while he fights to bond her to him for life. 
 The lengths that James goes to to keep Bianca is crazy and probably completely unrealistic but is also the reason I absolutely adore this book series. To have a man so 100% devoted to you that he will fire any staff members who do not treat her well. To be 100% honest to her no matter how bad it may make him look to prove he is placing his complete trust in her. To accept and take care of Stefan, knowing how much he means to Bianca instead of getting jealous and trying to separate them just because it would be what Bianca wants. You just can't help but fall hard for James Cavendish. How could I not love this series! 
 The audio is also very good. I have limited experience listening to audio books but I can say this narrator has been very good with the accents she's had to impersonate and anytime she has had to impersonate a man's voice, it has not detracted from the story.