Bryce. The Angelic Blood Chronicles, #2

Sibling rivalry and demons should never mix... Bryce has been many things in his nearly eight hundred years: lover to royalty, nightclub owner, and mentor to his younger brothers. And, most recently, lover to the nephilim named Rowan Courier. In all that time he has lived by the unwritten rules of the incubi in the human world, following human laws and keeping to his own territory. But not all of his siblings follow the rules.
When a sister arrives in town and sets up her own club a little too close to his, he chooses to confront her, and he quickly discovers her transgressions go far beyond simply setting up shop in his territory. She's really working with the demon known as Leviathan. It's Bryce's past relationship with Rowan that drew Leviathan's attention, and now Rowan must do what he can to protect him. Having just learned that he has been passing on angelic powers to his previous partners, Rowan feels a sense of responsibility for Bryce's safety.
Together with his partner, Marshall, and the Fallen angel who has been training them, Rowan heeds the call to help. They might just be Bryce's only hope, if they can manage not to be seduced before they can save him. The Angelic Blood Chronicles is a queer paranormal romance series that includes polyamorous arrangements, both new and established relationships, and a strong found family element.