Robb forced himself, at that moment, to be a King, not the boy who had all those years tolerated his mother's behavior towards the brother who he loved most.
If you don't like incest, then don't fucking read.
The whole fanfic can be found on AO3, this is my account:
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"Let me see if I understood you correctly", Catelyn Stark's sharp voice pierced through the otherwise quiet tent. Robb had been prepared for her judgmental glares and her disapproval. "you want to march your army, including the Frey men we just gained, back North, to the Wall?"
Robb nodded. "The letter says it clearly. They need help. And not just with the wildlings."
"It is not your duty", Catelyn said sharply.
"It is. I am a Stark. The Starks have always been...
