You're being trained to be a ballbusting slave at a party.

Ava walks over to you, grabs you by the hair, then sits you down at the table across from Bridget. Ava then walks back to your step-sister's side of the table and sits next to her. "The good news is," Ava tells you, "we're throwing a party with a bunch of hot chicks, and you're coming. The bad news is that you probably will lose your nuts." The busty blonde giggled.

"What are you talking about?" you ask.

"Shut up." Bridget tells you. "We have some rules for you; you will follow our instructions, you will only speak when told to, and your name is now 'Bitch-Boy.' Any deviation can be punished with castration."

"You wouldn't dare," you respond.

At this moment Bridget reaches into a paper bag that you just then realized was sitting next to her. She pulls out two objects and lays them on the table. One is a burdizzo and the other is a jar of formaldehyde with a pair of severed testicles sitting inside. "These are my father's. Your mother cut them off shortly after they got married. She gave me this castration tool and told me to use it on you."

You gulp and stop talking.

"Come with us. You need to be trained before the party tomorrow. Also, you should know that most men are trained for three months before being ready for this. Good luck."