Bewitching the Orc Chief by Chloe Graves

The most potent magic is sealed with a bite.

Miranda
All I wanted was one night of normal after a year of… avoiding my former coven. Instead, I got an orc chief who took one look at me and growled “mine.” One scorching night later, I wake up in his village—which is definitely not what I had in mind for the morning-after.
Now I’m surrounded by suspicious orcs, trying to keep my magic under wraps, and fighting an inconvenient attraction to my very large, very possessive “host.” But hey, at least my familiar likes him—the traitor.

Osen
The clan elders demand I take a mate to secure my position as chief. I didn’t expect fate to hand me a witch who makes my blood burn and my instincts roar to mark her again. And again.
Our shaman spits venom about dark magic, while my uncle circles like a vulture. But when my brother lies bleeding out and her forbidden power yanks him back from the brink, I know I’ll burn down tradition to keep her.
Then her coven tracks her to my mountains, and I discover exactly what kind of darkness my mate has been running from. They want to drain her magic and steal her power—but they’ll need to go through me first.

My mate. My witch. And I’ll destroy anyone who tries to take her from me.