AU or not; Before winter holidays, Castiel takes an interest in knitting and makes all his friends little goodies such as jumpers, scarves and hats. He takes a particular interest in dressing Balthazar, who wears the ugly jumpers out of pity more so than anything else (pshh, it's absolutely not fondness for his little ruffled angel that makes him wear it) (bonus if Cas refuses to kiss Balth until he puts on the jumper)