A Birthday Surprise

Harry Potter - J. K. Rowling
F/M
G
A Birthday Surprise
Characters
Reader, James Potter/Lily Evans Potter, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Severus Snape, Sirius Black/Reader
Tags
Fluff Revenge Siblings Sibling Bonding Implied Sexual Content Drinking Cuddling & Snuggling Underage Sex - Freeform Marauders Era (Harry Potter) Underage Drinking Sirius Black is a Little Shit Remus Lupin as Moony Sirius Black as Padfoot Pranks and Practical Jokes James Potter as Prongs Animagus Reader (Harry Potter) Reader is a Potter
Summary
One day Sirius Black and James Potter play a prank on Y/n. They make her meow like a cat for a week.For revenge she enlists the help of Severus Snape and brews an aging potion. She then administers it to their drinks and chaos ensues.

Chapters