The Witch needs one more ingredient to finish her spell. After her magic conjures you, she understands that she needs your mortal man seed for her spell to take effect. How do you mortal men get turned on? What is it that gets that cock hard? The Witch thinks she knows how to help you produce some of the ingredient. She's seen what mortal women do to turn men on. She knows how they move, how they make love with their mouths. You are bound to that seat until you cum, only then will you be set free.