Finn is bitten by an odd bug and after that he can't get food down. He begins to feel hunger pains but he just can't get his throat to accept the food. He goes to speak to his brother in the middle of the night, but instead finds himself ripping Dutch's arm off and eating it.
Dutch is shocked and biting down his screams as he watches his brother eat his arm except for the bones.
Dutch quickly rushed out, locking and shutting the door as he runs for Gary's room.
Dutch never goes into detail on how he lost his whole arm, Lenny makes a robot replacement arm for him but not before laughing about it.
The rest of the AU is just Dutch looking for arms to feed to his flesh eating brother while sometimes worrying if his brother will eat him while he's asleep. Luckily it seems Finn won't bite the hand that feeds him.
Arms are the easiest things for Finn to eat.
Everyone wants to know where Finn is but Dutch avoids the subject.
