Fallen by KT Yarrow

He thought all demons were evil. Then he met the one who loved him.

For the last sixteen years, everything Alex Hawk has done has been to find and kill the demon who massacred his family. He joined the Paladin Guild and made himself into a lethal demon hunter. But when signs of the demon finally appear, his commander orders him to stand down and gives the case to another. Driven by the need for revenge, Alex takes matters into his own hands, no matter the cost.
Talon is very old and very bored, but when a pretty paladin marches into a demon-owned club and starts asking questions, his interest in piqued. He wants to devour Alex, wants to lay claim and make him his own. Trouble is, demons don’t claim humans.
Alex burns for Talon. He’s never felt like this before, but it’s wrong to feel this way about a demon. If the guild finds out, there will be retribution for his sins. As he and Talon embark on his quest for vengeance, the heat between them reaches a boiling point. Can he trust these overwhelming feelings, or will falling for Talon be the worst thing that’s ever happened to him? Can a holy warrior and a demon ever find happiness, or are they doomed from the start?