Title: The Chest Breathes Fire as Needed
Author: trickylady
Artist: the_realduck
'Verse: Supernatural
Pairing: Sam/Cas
Genre: slice of life, sci-fi, first love, drama, HSAU, movie fusion (Chronicle).
Rating: R
Length/format: ~20k /  oneshot
Warnings: major character death, angst, violence, verbal/physical/sexual abuse, slash, non-con, underage (16-17), mental illness
Disclaimer: I don't even own the sweater on my back. The characters and ideas belong to Kripke, etc.
Summary: Sam and Castiel are best friends who touch a meteor rock during Dean’s party at a cabin. Soon, they realize it gave them something they may never fully be able to control, and Dean tries to help contain what he feels is his fault.
Table/Prompt: Themed; Quotes - Prompt 8. “Be careful when you fight the monsters, lest you become one” –Nietzsche [master table here]

Masterpost on sastiel_bigbang (fic + art)