An alien sci-fi porn novel by Nick Eronic and RawlyRawls.
Ummul is the first of his Repecki species to serve in the Outer Planets Fleet. He faces bigotry as a pioneer. One day he finds that his species’ mating ritual works on humans. Once a woman experiences the Invitation, she can’t get enough. If Ummul can’t get along with human husbands, at least he can bond with their wives.