Little Red Riding Hood (Sirius Black x reader)

(y/n) and Sirius Black have been enemies since the day they met at the sorting hat ceremony. No one really knows why the two bicker like children, perhaps it's the way Sirius would always style his hair in class or perhaps it was the way (y/n) was so focused on her class work all the time rather than breaking the rules. No one really knew, but when she finds a wandering black dog in the forest, will it all change?

- Set in Sirius's fifth year at Hogwarts