The first three books of Rien's oddly domestic take on demonhood. However his lifeforce is still sustained by the energy Leo generates in bed. Houseguest: An Unexpected Summoning Leo was just trying to reconnect with his old college friends when things got out of hand. Playing at summoning a demon gets everything shut down and everyone sent home pretty quick. Leo didn't believe in demons, but that changed quickly after he figured out that his party guests' play ritual actually worked. And how skilled the demon they summoned really is. Roommate With Benefits Leo's houseguest has a proposition for him, become roommates. Leo likes the idea of having someone to help him with bills and keeping up with the house, but he's not sure if a demon is good company to keep. Leo decides on a temporary arrangement, but there are more perks to this relationship then Leo could have hoped for. Becoming Partners Leo is getting used to having his roommate around. Life is going good, but he's starting to develop more feelings for his demon with benefits. Will Rien understand or just move on? Leo doesn't even know if Rien sees him as anything other than dinner. Is it even okay for him to feel this way for an infernal being?