Finch and Reese are caught while trying to save a number and separated. When Finch is returned to him, he's very different. The drug their captors have given him has made him angry, turned on and far stronger than John.
Even so, John can probably contain him but with Harold's new found strength it'll be a fight and John would have to hurt him. His only other option is to submit, so he does.
Back at the library, hurt!John has to look after Harold until the drug works its way out of its system. But he needs care too, and when Fusco comes by to check on them he says the state John is in and steps up.
Maybe Fusco deliberately lets slip what happened to Finch, who was already on the way to figuring it out cause he's a genius after all? And woe betide John for trying to keep this secret - but not as much as the people responsible when vengeful!Finch is through with them.
Finch/Reese, non-con, drugged!Finch, hurt/comfort, protective!Fusco
Even so, John can probably contain him but with Harold's new found strength it'll be a fight and John would have to hurt him. His only other option is to submit, so he does.
Back at the library, hurt!John has to look after Harold until the drug works its way out of its system. But he needs care too, and when Fusco comes by to check on them he says the state John is in and steps up.
Maybe Fusco deliberately lets slip what happened to Finch, who was already on the way to figuring it out cause he's a genius after all? And woe betide John for trying to keep this secret - but not as much as the people responsible when vengeful!Finch is through with them.