I knew, of course, despite the fact that she was a woman and I was a man

I knew, of course, despite the fact that she was a woman and I was a man, and that she was then to me as my own slave and I to her as her true master, that I must not permit myself this pleasure. It hinted too clearly at my dominance over her by nature, a dominance which I knew I must not permit myself to exercise, indeed, a dominance which I, of Earth, was not even supposed to permit myself to recognize.

Fighting Slave of Gor, p. 137