A Delicate Conquest by Anna Carven

It was supposed to be a straightforward assignment. Mavrel Yrixis had traveled to Earth to assist his boss, former High Commander Jerik Garul, in meeting his biologically determined mate.

With the exception of a few minor human-related incidents, the mission had gone to plan. Jerik found his mate—with the assistance of Mavrel’s extensive technological expertise.
Mavrel never expected he would encounter a human who sparked his interest. In the face of difficult circumstances, Bea had charmed him with her confident demeanor, effortless beauty, and a smile as radiant as Earth’s sun.
He can’t stop thinking about her.
Even worse, his Mating Fever has been triggered, and there isn’t a single thing he can do to stop it.
He isn’t ready for this.
He needs to find a way to stop it before it interferes with his plans.
But nature has other ideas, and there’s only so long that one can fight the inevitable, especially when the other party is so infernally tempting—and seemingly willing.