Katie Logan breaks into a home in order to steal enough to pay off the vampires who demand payment for protection. In the process, she gets more than she bargained for when she witnesses a murder. Katie cannot go to the cops because she has no way to explain how she managed to witness the murder without incriminating herself. For her own protection, Katie's brother sends her to the Bound for protection. The Bound are a group of assassin nephilim, who work to protect the innocent. Katie quickly finds herself caught in a sibling rivalry between the bound Cain and his vengeful brother Abel of biblical proportions. In this battle of brothers, Katie has to worry about losing her life and her heart.
There is nothing to distinguish Angel Kin from anything else in the paranormal romance genre. It's the typical boy and girl meet and don't like each other but are forced together through circumstance and then fall in insta -love. Angel Kin might as well have been written by the numbers as far as I am concerned. I will however admit that I do like the idea of assassin nephilim. Cain tells Katie that he is a killer repeatedly and even admits to taking out a vampire mob. He is even physically aggressive with her in parts of the story but Katie is of course is overcome by his attractiveness and suffering.
What would a paranormal romance be without angst? Every single emotion is absolutely over wrought. I think coming face to face with a brother one thought was long dead would make anyone upset but no character experiences even a small emotional even keel for the entirety of the book. Everything is the end of the world but somehow, though Cain and Katie are the run for their lives against dangerous forces, they have time to have sex. What else would you do when a dangerous assassin is trying to kill you and your family is in danger? Skinner did have a moment of subversion when she made Cain a virgin. Normally when we see a gently used protagonist, it's the woman. This is where the subversion ends because Cain, who has never had sex before, turns out to be a good and attentive lover. Really? Does Skinner even remember her first time? It's awkward and passable at best and no one is an awesome lover their first time, even a nephilim.
Cain is also extremely over protective and constantly reminding Katie how much larger than her he is. He is further quick to claim her as his. So much so, that after their first kiss, Cain thinks, "Whoever had taught her how to kiss best remain a mystery. He would soon be in enough trouble with Tanis without needing to explain why some guy's lips were pinned to the dashboard of the Stronghold." Keep in mind that at this time, Cain has known Katie for a New York minute but is already jealous of any other man she has kissed. Um yeah, that is a run away screaming situation and is certainly not romantic.