Taken By The Swarm King by Fiona Sweet

Fate-marked … damned. Why did it have to be me? The worst nightmare of women in my village is to be biologically chosen, taken captive and forced to couple up with one of these savage alien warriors. My heart breaks to leave my young brother and sister behind with no other family. But as I’m chained and led away, it’s clear I have no choice.
He is the Swarm King—a muscular beast with horns and hooves, well over seven feet tall. A menacing two-handed sword never leaves his side. These Byromian barbarians ride giant lizards through the desert wearing nothing but loin cloths, searching for human females to mate with.

…But as I get to know him better, I realize he might not be like the rest of his cruel and violent kind.
What if things don’t have to be this way? Drought, starvation, bloodshed—these are the hardships every inhabitant of Byromia knows too well. It’s the air they breathe, the scarce food and water they manage to bleed from the planet.

Can two people of enemy races use their passion to ignite the fires of change among their people? Will love find a way to make everything better?