Clipped and Bound has to be one of my all time favorite reads!

I love how when Sam learns Castiel has been cast out for stealing Dean from hell, he gets righteously pissed off and mounts a bloody, vengeful rescue of the angel from the demons' vile slave market. Even more, I love how utterly lost the boy is when, as he nurses Castiel back to health, he realizes they're now tied together and tries to deal with his own body's traitorous reaction to the dark demands of psychic of ownership...