Watching Mine by Alex Grayson is the Third book in "The Consumed" series. This is the story of Nathan and Emberleigh.
I have not yet the previous books in this series so for me this is a standalone book.
Nathan likes to watch people in intimate encounters....he is labeled a voyeur. A few years ago he happens to see his neighbor out of his window having a sexual encounter. Nathan from then on watched her for a few years although he didn't see her bring back a man to her apartment again. But every Tuesday he gets a show from her that he enjoys. But when he happens to meet his neighbor, Emberleigh he finds that he wants to be more active in his encounters with her. Nathan is no longer happy to just watch her from a far. Emberleigh has some darkness in her past and being with Nathan helps to bring that out to deal with it. This book does have a few twist and one that I found hard to put down. I will be looking for more book by this author.