Rainerio — Lynn Hagen

Taken from a life in the human realm, Dillon must adjust to being surrounded by demons. It's not hard when he has his sights set on one delicious looking warrior. From the moment he first laid eyes on the handsome Rainerio, Dillon knew what he wanted. Rainerio finds the human, Dillon, persistent, pesky, and unrelenting. He also finds him hot as hell. There's only one thing stopping him from taking Dillon up on his not-so-casual offer. He's seen the other mates used as pawns against the warriors, and that's something Rainerio's not willing to risk. Even if Dillon isn't his mate, he won't budge. When Dillon is used to test for a new drug that has emerged, Rainerio must fight to save him. But when the Black River overflows, indicating that the stolen crystal is being used, his problems of protecting the human have just multiplied, especially when he finds out Dillon is, in fact, his mate. Note: Each book in Lynn Hagen's Demon Warriors collection features a different romantic couple. To enjoy the overall story arc and crossover characters, we recommend reading the series in sequential order.