A Far Away Moon by Juniper Kerry

When Amelia decided to embark on a solo exploration of the universe, she didn’t know who or what she might encounter. But the last thing she could have imagined was anyone like Kaash, a brash, curmudgeonly, and devastatingly handsome warrior. Amelia can’t help but be interested in this dark alien. But any time they get close, he pulls away.
Kaash has one job to do: bring the human to her new owner. That means keeping her safe, yes, but it also means keeping her pure for her future master. As a Luna warrior, he is not worthy of her wide eyes and inquisitive mind. No matter how much he wants to, he must resist her. But when the two of them are trapped by a sudden storm, resisting his desires might prove harder than he’d like.