Inhuman Nature by Marra Moore

Rake and DJ aren’t looking for a third when they meet Shaun, but after one scene together, they can’t stop thinking about the vulnerable sub. They want to see more of Shaun, but his obnoxious, uncaring Dom stands in their way.

When Shaun unexpectedly turns up at their front door, bruised and battered and in need of a refuge, he confesses a secret that will change all of their lives:
Vampires are real, and Shaun is one of them.
Refusing to give up on Shaun despite his inhuman nature, Rake and DJ are dragged into the vampire’s world, caught between Shaun and the vampire who created him.
But what can a quiet Dom and his insecure, sunshiny boyfriend do against a nightmarish monster?
With the help of their friends, they hatch a plan to free Shaun, putting their lives on the line.

But if they survive the fight, is it even possible to have a happily ever after when the third in your relationship is a vampire?