6 Part Sequence/Story - Transforming Your Dad's Friend into a Horse (Patreon)

Your dad's new friend has been trying to get into your pants. You're not even that close with your dad but you still think it's pretty fucked up. Finally, you told her you'd fuck her but only if you get to turn her into a horse.

"Pony play," she thought. "Pretty kinky. I've never done that before but whatever, let's do it," she said.

Hers nostrils flared and stretched. The bridge of her nose widened and then her whole face jutted outwards. A harsh snort erupts from her new snout. She crossed her arms sternly, pushing up her swelling breasts, her cleavage prominently on display. She's trying to portray an aura of authority which doesn't really work since she's only a few years older than you.

"What the fuck is happening? What are you doing to me!?"

You calmly explain that this is her punishment for betraying your dad. You were expecting her to flip out on you. To berate you and beg for you to turn her back. Instead, she sits you down, unzips your pants, and pulls your semi-hard dick out.

"We made a deal, remember? You have to fuck me," she says, grinning.

She takes your big dick into her snout. You are, unexpectedly, extremely aroused by what's going on. Transforming her into a ugly beast was supposed to be demeaning. But you didn't account for how horny she was you for you. That, combined with the animal hormones flooding her system, literally turned her into a sex beast. She swallows your dick with ease, pumping it hard and fast down her throat, snorting as she does.

She could tell you were close to nutting. She lets dick flop out of her snout. It makes a soft thud as it slaps back against your stomach. You were so focused on her blowing you that you didn't even notice the other changes happening to her body. Her ass was enormous. After a bit of a struggle, she managed to turn around.

She reached back and felt her swollen anus. "What's going on back there?" she asks you. "God, it's so fucking big," referring to her butthole. "I was gonna let you fuck my ass but I don't think even your big dick would feel anything... I hope my pussy is still tight for you..."

She sits down on your cock. Her wide ass takes up most of your view. You notice the nub of a tail beginning to grow from her spine, coarse hair sprouting at the end of it. The transformation has granted her the strength and stamina of a horse which she definitely needed to swing that monster ass around.

There was an ass-quake that might have registered on the Richter scale happening on your dick. The only thing stopped her cheeks from clapping like thunder was her protruding donut acting like a buffer.

Suddenly, she orgasmed. Hard. Her knees knocked together as her body spasmed. Her butthole pulsated, gaping and closing rapidly. She neighed loudly. Her tightening pussy almost made you cum inside of her but somehow you held it in.

Her orgasm triggered the start of her reverting back to human. She hops off your dick turns around quickly and tells you cum on her. You blast her face and enlarged tits with a giant load. Your cum drips down her equine nose, nostrils still wide but shrinking.

"I think this goes without saying... but do NOT tell your father about any of this."

Alternate story is on Discord.