I am going through a pastel love period. Imagine a pastel au though where Sam is on his last year of university and Dean works at this local garage. Sam is this huge guy with longish violet pastel hair and he keeps it up in a small ponytail and arms and torso covered in tattoos. He prefers to wear V-necks and Dean never misses a chance to make fun of him because of it even though Dean’s hair is bleached blonde. Dean keeps calling out to Sam about how he has pink hair and Sam reminds him every time that it is pastel until one day Cas gets tired of it and he looks at Dean in the eye and says, “Dean Winchester, his hair indeed is a pastel color unlike the unhealthy yellow that yours is” and storms out. 

The next time Cas shows up to their to their apartment, his hair usual black hair is dyed lavender and Dean cant help but gasp and Sam is on the verge of busting a vein because he is laughing so hard at the whole situation. Castiel grins at Sam and then kisses Dean’s shocked expression away and Sam starts choking and makes and attempt to leave the room but Cas and Dean couldn’t care less; they are already against the wall, kissing each other’s breath out.