Could be an alternate movie dark end or something else, but on a whim Grindelwald decides to keep the magizoologist with the pretty face for his own personal pleasure.
Newt is frightened and stubborn and fights back as much as he can, but pretty quickly Grindelwald gets tired of cursing him into submission and his solution is a special enchanted collar. If Newt resists or disobeys him, it immediately delivers intense Crucio-level pain. However, if he is obedient, he is rewarded with an equally intense dose of sexual pleasure.
Newt hates both, the punishments are agonizing and the rewards make him feel sick and dirty, but ultimately obedience is the path of least resistance. Grindelwald trains him to be the perfect sex slave until Newt is literally eating out of Grindelwald's hand.
Bonus 1: The entire time, Newt's arms are restrained behind his back so he has to do everything with his mouth. Bonus 2: Newt getting plenty of "rewards" but isn't allowed to come. Bonus 3: He comes on the floor and has to clean it up using his tongue.
Grindelwald/Newt noncon - training
Newt is frightened and stubborn and fights back as much as he can, but pretty quickly Grindelwald gets tired of cursing him into submission and his solution is a special enchanted collar. If Newt resists or disobeys him, it immediately delivers intense Crucio-level pain. However, if he is obedient, he is rewarded with an equally intense dose of sexual pleasure.
Newt hates both, the punishments are agonizing and the rewards make him feel sick and dirty, but ultimately obedience is the path of least resistance. Grindelwald trains him to be the perfect sex slave until Newt is literally eating out of Grindelwald's hand.
Bonus 1: The entire time, Newt's arms are restrained behind his back so he has to do everything with his mouth.
Bonus 2: Newt getting plenty of "rewards" but isn't allowed to come.
Bonus 3: He comes on the floor and has to clean it up using his tongue.