Full Story and Sequence - Farmer Transforms Your GF into a Horse (Patreon)

A farmer caught you and your girlfriend trespassing on his property. At gunpoint, he leads you both to a barn. He pulls out a syringe and injects your girlfriend with something. Then he goes outside and locks the door.

"What the fuck did he put in me? I really don't feel good..." your girlfriend says. She looks sweaty and worried. She furrows her brow and moans.

Suddenly her face starts stretching. Her nose and mouth are growing and pushing outward.

"Oh god..." she groans. You can hear what you assume is the sound of bones and cartilage popping and crackling. Her now massive nostrils flare wildly at the end of her... snout. She lets out a bestial snort. You couldn't help but notice the steam that was emitted.

She raises a very shaky hand up to her snout and nervously touches it. Her two massive nostrils fill her palm. She screams. "This isn't happening. This isn't happening. This isn't happening..."

With all the focus on her face, the both of you haven't even noticed the changes that were happening to the rest of her body. Her legs and ass were growing. Her pants were stretched so tight. Then there was a pop and her ass exploded out of her jeans.

She looks down at her legs. "Jesus... I'm huge!" she cries. "Wait... do I have a fucking tail?" She swishes it from side to side. "Oh my god. This is fucking insane." She's in a total panic. "Why does it feel like something is wedged in my butt cheeks?" She turns around so you can look. She hears you gasp.

"What!?" she yells.

"Uh... um.... your butthole. It's... uh... it's huge. I don't know how to put this. It looks like... like a chocolate donut," you stammer.

She tries to scream but instead a neigh comes out. You saw her huge butthole quiver and twitch as she neighed.

A few hours pass. The changes seem to have slowed. Your girlfriend is now a horse monster - a weird equine human hybrid. You're still locked in the barn.

"This is embarrassing," your girlfriend breaks the silence, "but I am extremely fucking horny. Like so horny that I can't think straight." Her voice was strange. It sounded like her but much deeper. Her big tongue was also affecting her speech patterns.

"What can I do? I'll do anything to help you," you reply.

"If you can somehow get hard... if you can block out the memory of my fucking giant horse nostrils and swollen asshole... we NEED to fuck."

"We can try."

You strip down and take a seat on a hay bale. She turns around, swinging her massive ass towards your dick. The sight of gigantic butt makes you rock hard instantly. She sits her dripping pussy down on your cock. She goes slow at first but then her animal instincts take over and she starts riding you hard.

"I'm gonna cum..." you grunt out. She doesn't stop or slowdown. She just keeps twerking her fat ass on your dick. Your cum is spilling out of her but you manage to stay hard.

"I'm getting close," she moans with an accompaniment of neighs and snorts. "Fuck!" she yells. Her legs clamp together and her pussy tightens around your cock. Her donut puckers and convulses. You cum again.

Both of you hate to admit it but it was the best sex either of you have ever had.