Turning angel

So this is a real page turner but I have serious issues with it that other reviewers have articulated better than I can. A 40+ year old doctor has a sexual relationship with a 17 year old girl and repeatedly tries to justify it and the main characters admits to sexual thoughts towards his teenage babysitter. As another reviewer put it, it is a middle aged man's sexual fantasy, salacious and sexually explicit. I had already been irritated by the protaganist in the first book of the series find him to be smug and self-important.