A/n: Sooooooo sorry that I haven't updated this in so long!!
Dean: No one except for you knows this but he likes to sing slow Fall Out Boy songs in your ears as you fall asleep. His favorite one to sing is The Kids Aren't All Right because he knows you love that song.
Sam: He doesn't sing he hums in your ear when he hugs you from behind when you are cooking or if you guys are alone in the bunker and slow dance together. He doesn't have a specific song to hum, it's always different.
Castiel: He loves to sing You Are My Sunshine any time you are together or you try to fall asleep. When you need comforting or need to calm down he is always there to sing to you.
