Okay, so there are two fics that I am currently trying to locate.

This first one involves Sam getting attacked in the locker room. I think he defends himself and attacks the others with a (hockey stick?). He is later sent to a police station where John finds him, apparently the police beat Sam with their clubs. I know that the attack was recorded and there was a somewhat sexual nature to it.

The Second one is a one-shot I believe. Sam comes running home, his hair is wrecked. Apparently, it's all Dean's fault because Dean was dating the ex-girlfriend of a football play and Dean now has to calm down is emotionally wrecked little brother.