I'm a sex mage. my skill is helping coupes get pregnant with my magic. My clients today are my younger brother and his new bride, I haven't seen him in many years and question if he will even recognize me. I explain the fertility ritual and his wife leaves the room. I tell him in confidence that I am in fact his sister that he hasn't seen in years but he still agrees to go through with the ritual. He watches me take the cocks and cum from a lycanthropy and stallion, then he must fuck his own sister and give his cum to me. He does so and enjoys it, I prepare the magic cum to inseminate his bride.