Alien On Fire by January Bell

I can’t stand him, but pretending to be the alien king’s mate is my best shot at getting home.
I’ve despised his species ever since they invaded Earth. Being abducted by the Roth to make babies? That was the hate cherry on top. Nydo might have saved me from a terrible fate, but there’s no way I’m falling for his “you’re my fated mate” schtick. Ugh.
Except… he claims he needs a mate —me— to secure his place as the Roth King and help overthrow our mutual enemy. Apparently, I’m proof the Roth can mate other species, a fact he plans to use to overthrow the Roth tyranny.
As for me? He promises he’ll return me and my friends to Earth once he’s secured his position as King. Besides, I need someone to scratch a, well, a very specific itch, thanks to the ridiculous meds my abductors pumped me full of. Might as well make use of a willing partner.
I’ll let him dress me up like his doll in Roth clothes and makeup, I’ll let him into my bed, but there’s no way I’ll let him convince me to stay once our deal is up… even if there is more to the muscle-bound, fire-powered king than I thought.