Always be my baby

Set in their 6th year at Hogwarts, Snape gets into a fight with the marauders which de-ages him. There is no-one to take care of him aside from the best friend he so recently called a mudblood. To make matters worse, his best friend now appears to be in love with that toe-rag Potter. What could possibly go wrong with a 2-year-old Severus, deatheater friends and the marauders.