Mine

1-shot. Fighting exhaustion, guilt, worry and hallucinations of Lucifer, Sam finally has enough one night and is driven to the breaking point. When Dean finds him, it's not only the shock of what was happening that hits him but also a secret that Sam's kept that forces him to either face one of his own or lose his brother for good. *Limp/depressed/suicidal!Sam & Worried/angsty!Dean