Story: Girl Fucks BF While Turning into a Donkey (Patreon)

You and you girlfriend are farmhands. One day, a donkey bit her while she was cleaning its stall. The changes started immediately.

You were in separate building when your girlfriend lumbered in. She was huge, at least two feet taller. Her arms bulged, powerful muscles flexing beneath her skin. Her feet, now hooves, clopped on the packed dirt. She looked confused... and scared. She made her way toward you. You weren't sure if you should comfort her or get the fuck away.

Suddenly, she grabbed her pants, attempting to pull them down but her bigger fingers were causing difficulty with the button. Her pants were now several sizes too small. You figured she just wanted out of them to be more comfortable. Frustrated, she grasped the crotch of her pants and pulled. The jeans were no match for her new strength. Her pussy was now exposed. She was horny. Her juices were dripping onto the dirt now. You could see her swollen clit throbbing.

"Fuck... me..." she groaned in a deep, slow voice. "Please..."

She got closer to you. You allowed it. She pushed you over as gently as her strong, clumsy body would allow. You were laying on your back in the dirt now. She grabbed your pants and pulled them down. You're not sure how or why but your cock was rock hard. Something about seeing her this way. So primal. So horny. So...ugly... yet somehow attractive. It was doing it for you.

She squats over you and guides your dick in. She orgasmed right after you entered her, evidence by how hard she convulsed and loud she grunted. The first of many orgasms - both for her and for you.