As an aftereffect of Kili's time with the orcs, he has nightmares. Fili finds out and comforts him. (hurt!Kili and awesome bro!Fili)
Dean slowly realises that his interests lie less with women and more with the men. (NOT WINCEST)
He was glad that Sam had accidently left Private Peaceful in the Impala when he left for university.
Kieran gains a ghost, and the Winchesters go and sort it out. (Sequel to "A Bad Time For Being In Love")
When Kili goes missing, Fili is worried. (Kilbo)
He also knew - before his father - that Dean was smoking. It was surprising that his dad hadn't picked up on it yet, but Sam was smarter than his Dad.
Kili is surprised to find that Legolas doesn't have a talisman.
Dean falls for Kieran when he is making sure Sam is ok at Stanford. Pre-season