Beth watches as the female struggles against the male, growling and trying to escape from under him. But there is no escape from the small confines of their cage, and the male is too strong.
However, as the male humps into her, the pleasure begins to override her absolute sense of disgust of being mated by her own sister.
Soon both minks are enjoying themselves, Palador's fluffy white form moving in rhythm with the brown male.
This makes Beth smile. Perhaps her two new pets will happy in their new forms after all.
Finally, the two minks howl in pleasure as the male deposites his seed and fertilizes the female's eggs.