Demon’s Desire by Colette Rivera

Frustration shouldn’t feel this good.
Onyx doesn’t need anyone, least of all a mate. He certainly doesn’t need his demon brothers, but can’t seem to get rid of them or their task of helping the magic world adjust to demonkind’s return to the Human Realm.
What’s worse than that? The most annoying, do-gooder witch won’t leave Onyx alone.
Nico Velázquez may have discovered demons in Shearwater Landing by accident, but he’s committed to ensuring a peaceful transition for everyone. Especially if it means working with Onyx.
Onyx is beautiful. Terrifying. Bratty.
Nico can’t get him out of his head. Onyx needs someone to be firm with him. Someone who shows up for him, and Nico would love to break through his prickly exterior and take charge of the demon hiding beneath.
Onyx doesn’t understand why Nico cares. Why does hating Nico feel so good? No one’s ever captivated Onyx like Nico. It’s maddening. If it weren’t for all the wrong reasons, Onyx might think Nico was his mate.