It doesn't take a lot convincing

After all he even lets you to lay near him on his bed. How nice of him!

"Listen, dad wants to take me away from you."

"What are you talking about?" he looks at you.

"He said that he plans to fuck me everyday."

"But...he's helping me train you..." he says.

You need to treat carefully not to anger Jack.

"You are just a tool for him to get what he wants" you explain "he wants me to train on you to be ready for himself. And then he will take me away from you."

You look at him with worry. Did he buy it?

You see his hands clenches into fists.

"I won't allow him you are mine, mine, mine!"