Catfish (слэш)

Sam and Dean have been pranking each other since they were kids. It was sort of a routine, though it has been tamped down by all the hunting and serious business, boss fights. Nevertheless, they were at it again, another war breaking out... However this one took a rather interesting and different turn when Sam, wronged little brother in a grown man's body, decided to pull the most infamous pranks of them all: Catfishing.