'Babe, WTF is happening to me?' - Horse TF, Donut (Patreon)

You're starting at your girlfriend's asshole while it grows big and round. She's rightfully freaking the fuck out. "What does it... look like back there? My butthole... my pussy.. feels weird..." Her voice was deepening.

All you did was make a wish that her ass was bigger. That's all. Now she's transforming into a horse. But your wish was granted.