The Warlord by Jocelyn Montana

Enter the omegaverse world inspired by the Greek myths of Kassandra and Achilles from internationally best-selling author Jocelyn Montana.

The last citadel has fallen. The Warlord now rules. But he has one last conquest left …
Princess Kassandra was supposed to live her life dedicated to the gods in a mountain temple. But when the brutal Warlord Lodan topples her family from the throne, he takes Kassandra captive.
She’s a trophy of war. His sworn enemy. The focus of his wrath. An Omega of royal blood to trot out at his side proving his dominance of the world. And her. But he isn’t content with her captivity.
He wants her in his bed.
He won’t take her by force. He thinks he can use Alpha tricks to slowly seduce her. Make her crave him. Make her beg for him.
It’s a battle of wills. A battle against desire. Because every moment with him flames more passion. But she won’t give in.
She’ll never lie with her enemy. With someone who will never care for her.
And she will never, ever, beg.

Possible triggers are detailed on the author’s website.