sweetpadalecki:

my personal little headcanon for the “jerk” “bitch” thing is that when they were younger the boys got into a big argument over something silly, and Dean was fuming so he accidentally let “bitch” slip from his mouth, and Sam was so hurt and shocked he tried to think of the worst insult to fire back at Dean, but being so young the worst thing he could think of was “jerk” so he spit it at Dean like a curse word and Dean just couldn’t help but giggle bc his baby brother was so pure and clearly couldn’t have a mean bone in his body if he tried, and Dean giggling made Sam giggle too so then “bitch” and “jerk” just became this loving playful thing between the two of them ;.;