Auctioned to the Babymaker by Luna Voss

Auctioned off to alien warriors… Purchased by a fearsome chief.
On the planet Kyrzon, women are selected by lottery to be sold as brides to the savage aliens that rule the planet. Christy, a young human, feels very lucky to have escaped that fate. She’s smart and ambitious, and her plans for the future don’t involve becoming the property of an alien warrior.
Chief Rukkarr didn’t come to Human Territory to find a mate. His tribe is at war, and his only concerns are blood and battle. He certainly doesn’t need a distracting little human like Christy occupying his thoughts. It’s a good thing she isn’t for sale.
But when an unexpected lottery is called and Christy is chosen to be auctioned off, Rukkarr can’t resist the opportunity to make her his. The Kyrzon war chief buys her, aggressively outbidding the competition.
Now the sheltered Christy must learn the ways of a Kyrzon Bride, guided by the rough hands of her new mate. Can she find love in this primal world of alien warriors?