Sky Lord’s Mate by Alana Serra

My whole life, I’ve never been anything special. I’ve struggled for every penny, every grade, and every opportunity. When there’s a chance to make some extra cash, I’m all in–right into another realm, and a war between angels and demons. Now a hotter than hellfire demon warlord is saying I’m his mate. He offers me a bite of the sweetest forbidden fruit, everything I’ve always wanted. But this place isn’t my home, and as I’m caught between two worlds, I can’t tell if I’m careening towards sin or salvation.