Sucaen by Kenzie Kelly

They brought her in to examine the alien animals. Being mated to the Ka’atari Warrior Chief wasn’t in her contract.

Xenobiologist Juniper Baldwin is facing a career studying bacteria from Mars, but she dreams of complex animals from different planets. When government officials arrive and whisk her away to a secret bunker to study the pets survivors of the space station Shangris brought back from the far reaches of the universe, she happily signs on the dotted line. She knows the beasts are dangerous, but it’s not the creatures who make her want to cower in a corner—it’s the fearsome lot of alien warriors. When the leader tells her they are mates, her legs tell her to run, but her body wants to melt at his touch. Previous boyfriends used her to further their careers, and this warrior wants her to give him a baby. She refuses to be used again. No matter what her traitorous body insists is right.
Sucaen has spent his life searching for his rhun. The one woman who can give him the family he craves. He’s elated to find her on Earth, and terrified something or someone will take her from him before she fulfills his dreams. He never thought he’d be the one to push her away, but his need for a family does more damage than he could ever imagine. He’ll have to use all his Okan strategy and planning to rectify a dreadful error—or lose his rhun forever.
As if the looming Scozid threat weren’t enough, a tomcat with opinions and a misguided human resistance group add to their troubles. Action packed, steamy sci-fi romance fun!