Two Parter: Skinny Girl's Beefy Werehorse TF (Patreon)

One minute this shy, petite, normal girl was studying in the library. Now she's becoming a fucking beast. Her muscles are growing. Her breasts are swelling. Her face is stretching. Her nostrils are flaring.

The people hiding under tables and behind shelves can hear her snorting and grunting. She flexes her growing arms. She feels powerful -- and she likes it.