Title: Bound By The Life Left Behind (4/?)
Fandom: Supernatural, Dean/Castiel, Sam, Demon Dean
Warnings: Slash, AU Season 10, Torture, violence, non-con,
Summary: Largely a darkfic where Sam and Castiel failed to recapture Demon Dean. Now they must each fight to save each other, survive the demon's promise of "no mercy," and cure Dean. All the while finding away to somehow keep the "deanmon" from crossing lines from which they know Dean could never recover once cured. Yet, can they? Especially as the demon knows all of their past sins, the ways to hurt them, and ultimately the way to pervert everything Dean was and loved.