Its your birthday,Nobody remembered.You didnt use to care about your birthday,but after you found a real family in the winchesters(plus a few angels)you thought that they would remember.You told them,you know you did.Sam just got back from a hunt,you would go talk to him,but you don’t want to be a bother.

“Hey.”Sam says softly poking his head through your door,”I picked up something for you on the way back.” He grins pulling out a cupcake with a single candle in it from behind his back.