By Lone_Amaryllis

Harrie's Animagus form is a cat. Snape happens to like cats. Or: the fic where an 'Accio cat' starts everything.

Harry Potter/Severus SnapeHarry Potter Severus Snape Mathilda Walker (OC)Female Harry Potter Alternate Universe - Always a Girl Genderswap Age Difference Older Man/Younger Woman Teacher-Student Relationship Smut Vaginal Sex Aged-Up Character Harrie is 18 Hogwarts Seventh Year AU where Snape didn't kill Dumbledore and Voldemort hasn't taken control Animagus Harry Potter Cat Harry Hand & Finger Kink Severus Snape Has a Heart Crack Fic Fluff Christmas Fluff Disregard for the limits of canon spells Accio works on cats okay Snape has a cat It's an actual tag :D Complete

https://archive.transformativeworks.org/works/43179418/chapters/108524056