It's hard for me to describe this fic. There's a Sam/Jess vignette and one Sam/Dean and all the others are gen, but for me, this whole fic is about Sam/Dean, the dynamic of their relationship as brothers, and Sam's misconceptions about Dean. It's rated Adult, mostly for language. Warning: POV shifts. Some vignettes are written from Sam's POV, others from Dean's.
( 5 Times Sam Winchester Was Utterly, Completely Wrong )
( 5 Times Sam Winchester Was Utterly, Completely Wrong )