Kisses at the Crossroads by Morgan Lysand

Lark has the worst luck. After stumbling through a thin spot in the veil between realms, he’s been stuck in the human world for a decade and forced to perform parlor tricks for the witch that captured him. Luckily, the witch’s power wanes and Lark hopes to run for his freedom during the next full moon. But he needs help. What could it hurt to summon a crossroad demon to get him back home to the Faelands?
When Pike gets summoned for the first time in decades, he’s sure it’s for something ridiculous. Humans never think of consequences. However, the moment he lays eyes on the pretty Fae, he’s determined to help the ethereal one, no matter the cost, even if it’s his own heart.