Varro’s Human Bride by Sue Lyndon

On your knees, little human.
Julie is desperate to travel to Tarrkua and join her sister–the only family she has left in this universe. But to reach the distant alien planet, she must assume the identity of another Earth woman who’s supposed to marry a Tarrkuan. Can she pull off the switch without her new alien husband learning of her deceit?
After years spent in the asteroid mines, Varro returns to his home planet only to discover his betrothed has married another. Angry and hurt, he vows to never trust another female again, though he knows he must fulfill his duties to his people and procreate as soon as possible. Now he must take the human bride who’s offered to him–a stranger from Earth, no less. But warmth fills him the moment he first glimpses his little bride, and her sweet demeanor soon wins him over. Perhaps an arranged marriage to a human is what the Gods had intended for him all along.
Once Julie and Varro are married, he takes her home and claims her thoroughly, leaving no doubt in her mind that she now belongs to him. He also informs her that he’s more than her husband–he’s also her master–and she’s expected to obey his every command. When she’s naughty, he doesn’t hesitate to apply a sturdy leather strap to her bottom. But he also possesses a gentler side and she can’t help falling for the strict but loving alien. She also can’t help but shudder in ecstasy as he claims her roughly, time and time again, leaving her breathless and trembling for his masterful touch.
But all lies eventually unravel. What will Varro do when he learns of her deceit?