Because You're Worth It

S8, pre-bunker: Sam and Dean haven't been as close since Dean got back from Purgatory, but that doesn't mean the older Winchester has just suddenly stopped being a big brother. So when Sam gets himself hurt and needs help doing something as simple as washing his hair, it doesn't take much convincing for Dean to oblige. Brotherly schmoop, *NO Wincest.* Written for a prompt on LJ.