Not both. Just one. Usually the right one. The original 2012 story, posted on the Creepypasta Wiki , is a masterclass in anti-climax. The narrator wakes up to find a figure leaning over his bed. Jack doesn't chase him. He doesn't monologue. He simply reaches into the narrator’s side, removes the organ with "surgical precision," and leaves behind a single, black, gelatinous capsule to stop the bleeding.
Consider the logistics of his existence. After removing a kidney from a sleeping victim in the suburbs, Jack doesn't vanish into hellfire. He presumably returns to wherever he lives. He takes the cold, wet organ out of his pocket. He rinses it in the sink. He puts it on a plate. eyeless jack eating kidneys
He endures because he is the most realistic impossible monster. We have all woken up with a scratch we don’t remember. We have all felt a strange twinge in our side and wondered, Was that always there? Not both
The victim wakes up the next morning with a scar and a dull ache. Life goes on. But the fear doesn't. The original 2012 story, posted on the Creepypasta