You wake up covered in a cold sweat, disturbed by the strange dream you just had. You were on a farm, in an overheated barn with the murmurs of animals all around you. You were very naked, which made you shiver with disgust. Everything felt strange and disorientating. Your body was massive, plump in all the wrong places. You were clearly on your hands and knees, but the position felt almost natural. 

Your wide view of the world made it more difficult to distinguish things in a meaningful way. You thought you could make out your own body, but your flanks seemed far too long, and, to your disgust, covered with grayish hair. You’d always been a little hairy, but this was too much! Your sight was also hindered by a massive, brown nose obscuring much of your vision. What happened to your face?

Your eyesight was not the only sense that had changed. Your hearing was so much sharper. You could plainly hear animals chewing or snoring from across the barn and even people talking from somewhere far out of your line of sight. That was nothing when compared to the smells. It was more than just the typical barnyard stink of animal sweat and manure that wafted casually into your nose. You could smell minute details of pheromones and scent glands that were beyond your ability to comprehend. Your nostrils instinctively flared, drinking in the myriad of scent molecules that dramatically increased your perception of the world.

One smell stuck out more than any others. A donkey, a beast with the same dimensions as you, was close by. It was clearly male; you could distinctively smell his erect phallus hanging from a massive sheath as the beast came up behind you. Somewhere in your mind was a hint of recognition. Somehow you knew the donkey was familiar. But that couldn’t be right. 

Despite yourself, you could feel your cock getting hard from the heavy musk and the proximity of the beast. You reflexively raised a long, hairy growth above your ass to expose your clenching anus. You could feel a wet and thick tongue licking your ass, and then the sensation of heavy hooves on your flanks. Your cock unfurled from your sheath, harder than at any time in your life. Your flared tip touched the dirty barn floor as the donkey on your back started thrusting in and out. His balls slapped against yours as he fucked you faster, claiming you as his. Your beer can width hose trembles with the release…

You shake your head a few times, trying to remove the vivid dream from your mind. To your horror, the lust seems to have carried over to the waking world. Your cock is bobbing insistently, head leaking precum as though beckoning you to finish the dream. You can’t touch yourself to something so bestial. But you can’t deny the arousal in your cock.

You get up after a few minutes to take a piss. At least your cock starts to soften with your need to empty your bladder. As you pass your roommate’s slightly ajar door, you hear a strange sound, almost like the soft brays of an animal. Is your roommate watching animal videos on YouTube at 3am? The coincidence is almost too much. You want to ask him about it, but you don’t want to let him see your boner. Maybe it was the sounds of his video that flooded your dreams, you think. That must be why your dreams were so messed up!

You get to the bathroom, turning on the light before glancing into the mirror. Your ears seem a bit longer, and your nose more bulbous. But it must just be your imagination, you think. You are still sleepy from the vivid dream and its effects on your body and mind. You do, however, have to admire the nice stubble growing down your face. You could do with a beard, you think.

You head to the toilet and pull out your dick to do your business. As you do, you can’t help but notice how big your cock is, even while flaccid. You touch it for a bit, marveling at the splotchy black patterns over the surface. You finish, staring in fascination as it slides back into your thick, hairy foreskin. Wait, hadn’t you been circumcised before now? 

You pay it no mind as you rub your fuzzy balls, enjoying their soft texture. They’ve never been so… plump before. They sway below you, heavy between your legs as you explore their contours. The wiry hair covering them feels so soft, although you know you had shaved a few days ago. Maybe you’ll keep the hair, you think. 

Eventually, you finish your exploration and pull up your PJs, feeling them catch on a growth above your ass. It seems to be sticking out right above your backside, making it impossible to pull your pants up all the way. As you reach back to touch it, it jerks out of the way, and a corresponding tingle runs up your spine. You clearly feel it is an extension of you as you gently rub the area, stunned by this new protrusion. It twitches every so often, and, like your groin, seems covered in the same soft, wiry hairs. 

Before you can question its existence, you feel a rumbling in your stomach and recognize you could use a midnight snack. It takes a bit of effort; you realize it is more comfortable to walk on the tips of your toes. The motion leaves you feeling unbalanced as you walk. Stranger still, the tips of your toes don’t seem to register the carpet underneath you. They seem numb, stuck together no matter how much you try to move them. Yet whenever you try to question this, the rumblings in your belly take prescience, and you focus back on your initial goal. 

You work your way into the kitchen, surprised by the hard clicking noise your feet make as you do. You don’t want to alert your roommate with the noise, yet you can’t help the thick ‘clop’ your feet make across the floor. Yet the hunger is too strong for you to stop. 

You open the fridge, disgusted by the meat and milk there. Thoughts of the processed foods you normally enjoy make your stomach churn, and you look desperately for food that can satisfy your appetite. Finally, you spot something absolutely delectable, some carrots and lettuce that make your mouth water! You reach in and grab a carrot, chomping down the entire morsel, even the stem in one go. Yet it is hardly enough to quell your enormous hunger. You take out another and another, and soon all of them are gone. 

Your mouth goes numb as you do, but it does little to impact your feast. You grasp your meal in your rubbery lips as your thicker slab-like teeth chew it into a slurry. The carrots devoured, you set to work on the lettuce. Instead of taking off the leaves to make a sandwich as you normally would, your blocky teeth chow down into the entire head. Your molars are farther back in your jaw than they should be, but their flattened surfaces make short work of your meal, so you don’t pay it much mind. 

As you eat, you can feel your stomach distending into a thick gut the likes of which your already chubby body has never known. You reach down to rub your hand over your soft fuzzy belly, registering the hard-packed muscle underneath the increase in flab. You smile at that, enjoying the idea of being powerful. Your chest has barreled out somewhat as well, and you have never felt so strong. 

An ache in your back prompts you to reach around to try and alleviate it. You touch greets the long, ropey growth twitching as it continues to stretch. Your exploratory hand accidentally reaches lower and brushes against your asshole, and to your surprise, it almost goes all the way in. Your ass is higher on your backside and has widened into a thick black donut. Images from the dream flood your mind, and you can’t help but think about how wonderful it would be to be fucked in your gaping anus. 

It is the needs in your stomach that take precedence, and you return your attention to your meal. Your hands feel a bit stiff as you try to grasp more of the tasty veggies to fill your appetite. Gazing down, you see your fingers are shorter and can hardly move. The exception is your middle fingers, which are long and covered with a thick keratin nail. Panic sets in, though not over the fact that your hands are becoming hooves. You can’t grab your food with hands like this! 

Yet your lips are thick and pliable, and the fridge is already open, allowing you to pull up more tasty lettuce heads and bring them into your stretching maw. Your jaw cracks forward slightly, and your larger muzzle allows more food to enter your gullet. Relaxation floods your mind from knowing how much faster you can fill your quivering stomach with such a muzzle. 

The ache in your back grows insistent, and you have to lean down to eat. But that’s OK, you think. It’s easier to eat your meal on all fours. And besides, why did you need your muzzle so far away from the ground? Your nostrils flare, drinking in the odors of food, and your thoughts drift to the farm in your dream. How you long to be surrounded by the scents of succulent grass and sweet hay!

Your ears itch as they stretch up your head, yet you much prefer the multiple sounds their new shape can detect. They rotate in response to a harsh bray as you realize the sound of clomping hooves is approaching you. It is exactly the vibration you picked up as you walked towards the fridge, only now your ears discern it is the sound from a fellow donkey. 

Despite yourself, you can feel your cock getting hard in your pajamas, leaking a thick stain of pre all over them. You look up with your massive, horizontally slitted eyes to see a fully formed ass stomp his way toward you. To your fascination, he is wearing the tattered remains of your roommate’s shorts. You can’t help thinking how sexy he looks without them, especially his massive, swaying, mottled donkey cock!

Almost immediately, your nose stretches further in front of your face. Nostrils flaring, you readily drink in the scent of his sweat and musk. Your jaw continues to crack forward, allowing more space for your bulbous nose to breathe in his maleness. Your bulging face pushes your eyes to the sides of your head, and you can’t see him as well. But he smells and sounds so amazing! 

An intense stirring in your cock prompts your gaze downward in time to notice its transformation. The tip is flaring and starts leaking against the floor. Your foreskin peels all the way down to its base, the fleshy skin attaching to your groin as it itches with the growth of soft gray fur. Blackening testicles weigh heavy on your body as they swell with jackass cum. Your tackle looks just like your roommate’s very prominent maleness, and you bray in excitement. 

You realize that the donkey before you reminds you of the one in your dream. But this is your roommate. He seems to have changed fully into the jackass that your sex has been craving. This realization does little to frighten you, however. You always had a thing for him, and he’s never looked sexier to your changing senses. 

A prompt tugging at your ass diverts you from your lusty thoughts as the donkey’s teeth pull off your straining pajamas. In response, your tasseled tail sprouts fully and hits your suitor in the face. A delighted whicker escapes your rubbery lips as you realize you are now as naked as he. A shiver runs through your equine bulk as your anus puckers outward, cleaning with your eagerness. Immediately you can feel your roommate’s tongue licking your backside to prep you for the fucking you’ve been craving since you dream. 

Your mind starts to fade as the massive donkey rears up on your back and spears your needy pucker. But you don’t need to think anymore. Any lingering human thoughts are only aware of how badly you want to be bred like the beast of burden you are. 

Lost in desires to rut, you are barely aware of the remaining changes to your form. Gray fur peppers your leathery hide as your stretching neck is crowned with an asinine mohawk. Your entire body gurgles with a series of wet pops as your skeleton rearranges itself. Your flattened shoulders, wide hips, and four strong hooves all allow you to travel on all fours for the rest of your days. You care only that you have reached the handsomeness of your lover as he proceeds to breed you into his stud. 

An asinine bray escapes your lips as your mate starts fucking you in earnest. His floppy donkey cock catches easily in your moist pucker, and he elicits a strained grunt as he pushes his medial ring in. His size stretches you a bit, but you want it so bad you don’t care. Eventually, your stimulated insides flare with sensation as he finds his rhythm and the two of your rock back and forth in your bestial rut.

His balls are slapping against yours now as your twin orgasms near. The release you both need so badly envelops your entire being, removing any lingering doubts of fear or regret. Confident in the knowledge that you belong to him, you allow your cock to slap against your belly. The tension in your testicles grows to a crescendo, and you can’t help but feel the wash of your orgasm envelop your every being. 

“HEEEEEEEEEEEEHHHHHHHHHHHHHAAAAAAAAAWWWWWWWWWW!” 

You both bray like the asses you are as your massive cocks spray their heavy loads. You can feel your ass being pumped full of seed as your own donkey cum coats your belly, pooling on the floor underneath you. Your mate dismounts, generously lapping at the remnants of his cum that dirty your fur. He then comes in front of you to kiss your slobbery rubbery lips in a sign of affection. You kiss him in kind as you feel his seed warming the insides of your abused pucker. With that, you both head out into the night to graze and enjoy your lives as beasts of burden.