Femdom? Professional domination?
Bill Ward drawing a woman on a throne would certainly suggest the former. And the viewer can see what he wishes.
Crafty Dames suggests that at the very least these women are manipulators of men.

This is tame for a Unique Book. Often the cover art was kinky in a baffling way that was more confusing than arousing.
Write your own story.
Similar Femdom Art:

Yes, very nice. Understated art (and understated sex) can be exciting.