Serving in Shame by Emily Tilton

Based on the testing required of all girls her age, eighteen-year-old Beatrice has been deemed by her planet’s government to be highly suitable as a bride. But before she is stripped bare and publicly presented to a set of up-and-coming men, she must be trained. That task falls to Colonel John Quinst, who will serve as her guardian until she is ready to be given to one of her suitors.

As John sets about teaching Beatrice what is expected of a wife, he does not hesitate to make shameful use of her virgin body, and she quickly discovers that any disobedience will result in a humiliating spanking. But despite her blushing cheeks and frequently sore bottom, she cannot help wondering what it will be like when her future husband claims her even more thoroughly.