Yesterday I finished re-reading The Bright Lights of Disturbia by leonidaslion. It's a pretty dark Wincest fic, over 350,000 words long. Heed the tags, please.Not all of our scars are worn on the outside ...
It's a canon divergent fic set around s1 and s2 of Supernatural before going off on its own timeline...
And it majorly plays on consent and having an unreliable narrator: Sam.