Untamed Alien by Luna Kingsley

It was my new beginning. Until they gave me to the alien barbarian.
Marion can’t believe her luck when she secures a spot on the first transport to Xavren. It’s like winning the lottery when the Intergalactic Colonist Association (ICA) pledges to provide her with everything she needs to succeed as a founding member of the human colony.
Once she sets foot on Xarven, she realizes there’s more to the bargain. The council expects something in return for their kindness.
Brotak carries the future of his clan on his broad shoulders. With no females, their people face extinction. He does the unthinkable and strikes a deal with the Xavren council. Human women in exchange for his tribe’s rich land.
The first woman is delivered, and all his doubts, plans, and good intentions are discarded in a moment. He’ll claim her, breed her and enjoy every minute of it.