When the woman is sub the fantasies are often about bondage, spanking, and forced orgasm. The women has left all control to the male who drives her crazy sexually and uses her sexually. He may humiliate her. He may bring others into the relationship but it is a highly sexual relationship.
When the male is the sub, the typical image is of an impotent cuckold, who is controlled by the woman, punished by her and denied orgasms. The idea of chastity where a man’s penis is locked in a cage is depicted and discussed more often. When a man is humiliated it is often about making him a sissy and dressing him in women’s clothes.
Both of these stereotypes seem confining, especially the male one. I wonder if others have any thoughts about this.