[Story] GF Turning into a Werehorse With a Donut (Patreon)

You and your girlfriend went to a petting zoo. She tried to feed a horse an apple but it bit her hand too. An hour later she started complaining that she wasn't feeling very well. She says she needs to lay down. You two stumble into a shed. Suddenly, she screams. Her face starts growing outwards. Her nostrils are stretching and flaring wildly.

"What is happening to me?" she says through clenched teeth. It's hard to understand her because her lips are also growing.

Her skit starts lifting upwards. A massive tail is sprouting from her backside. She looks back at you.

"What's wrong?" she says after seeing your face.

"Your butthole... is fucking huge..."