You start braying loudly as you ejaculate into the bartenders ass but your orgasm dies quickly and you lay on the bed breathing heavily and snorting. The bartender pushes himself off your cock and your own cum falls onto your belly which triggers another bray from you mouth. You cock has deflated significantly and it starts retreating into your sheath. The man chuckles as he get starts putting his clothes back on.
"You drunk jackasses are always such easy prey" he says to you calmly as he grabs a key from his pockets and unlocks the handcuffs. As you pull your arms from the handcuffs you immediately notice they've changed significantly. You start hysterically braying as you you realize they've turned into the forelegs of a feral donkey. In your excitement, you accidentally fall off the beds onto your side. You struggle to orient yourself and try standing up on your hindlegs. As you're getting up the bartender slaps you hard on your flat ass and you fall forward onto your forelegs. You front hooves land on the ground forcefully. You feel a pull backwards and realize the man is pulling on at leash attached to the collar he placed on you earlier in the night. You bray hard and try to resist but the man is too strong and he successfully pulls you head first towards him. Once your close he flicks your ear and you bray in pain. By the time you've recovered from the shock you realize that he's managed to get a bit in your mouth and is in the process of placing a bridle on your head. You struggle against him but he's got a firm grip on your head and soon you have a sturdy and snug bridle neatly tightened across your muzzle.
The bartender leans over to your ears and whispers in them "You're a real pretty ass. I was gonna sell you at auction, but now I'm thinking you'd be better off working on my farm." He tightens your lead and and starts pulling you out of the bedroom. Anytime you try to resists he pulls on the leash so that the bit in between your lip bites painfully into your moth. Within a few minutes he's managed to get you out the back of the building. By the time you hit fresh air you've already expended almost all your energy struggling against him, and can't do anything but follow his lead. He guides you back to the streets and heads for a stable a few blocks down. He ties your lead to the stables next to a few other donkeys who you suspect were also tricked into losing their humanity. "I'll be back in a few hours once my shift is over yah dumb Ass."
You're tired and hungry from wrestling with that man for the last hour, and you lay your ears back in humiliation as you start drinking from a large trough and munch on the hay provided nearby. Once you've got you're fill you stand in the middle of the street watching all sorts of foolish men heading into the various establishments, but they all completely ignore you as try to bray in warning.
Eventually you feel the urge to piss and you feel some of your donkey cock fall out of your sheath as piss startss spraying into the streets. Some young, drunk men wander by you as a large puddle of piss forms between your legs. "Man look at that donkey huge cock!" one of them exclaims. "I wonder what a giant cock like that feels like. Makes me a little jealous of the dumb beast." At the sound of his words, you start heaving in and out quickly and realize you're chuckling at the stupid boys comment.
Eventually a few hours have passed and you see the bartender walking down the street towards you. He approaches you with a large grin on his face and a fat cigar in his mouth.