Author's Notes:

This chapters was inspired by the fact that pictures of "Cow Rarity" have exploded with popularity. Naturally, I wanted to help support the trend, as any TF is a good TF!

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The Most Generous of Cows - A story about one glamorous pony and her gradual decent into the polar opposite.
Story Themes: RARICOW
'Dark' rating: 5 / 10
Clop?: Sorta.

Set in an Equestria where cows are unintelligent farm animals...

Rarity sets the bottle down and paces her living room. She glances in the mirror once more and checks out her figure. “My mane and tail: perfect. My waist: perfect. My eyes and face: perfect. My manicured hooves: perfect. My toned ass: perfect.” Rarity twirls around and checks the last part of what makes a mare attractive. “My teats: ....not perfect. Not perfect at all.”

Rarity sighs as she looks at her tiny teats, they were practically as small as Sweetie Belle’s, and she’s just a filly! What stallion would ever want to marry a grown mare with such small mounds?

Tears well in her eyes as she turns away from the mirror and trots back over to the bottle she set on the table. She bought it on the black market and it cost her nearly a thousand bits. The shadow vendor told her it was made using dark magic that was learned from captured changelings, but it gives the owner bigger teats! It seemed almost too good to be true, but she was so desperate for bigger teats that she had to buy it.

Rarity uncorks the bottle and gives it a sniff. It smells like milk mixed with something potent. Hmm, Rarity ponders how much to drink. Is she supposed to just take a sip, or drink the entire thing? She probably should have asked the shadow vendor that question.

“Well, go big or go home. This better get me a big, strong lover...” She laughs softly and tilts her head back and chugs the entire potion, giving an uncharacteristic belch as she finishes. “Oh, excuse me. I am certainly glad Sweetie Bell isn’t home to hear that dreadful noise.”

Rarity yawns deeply, feeling really tired all of a sudden. She sets the bottle down and glances at the mirror, waiting to see if her teats plump up. Her vision starts to go hazy and her eyelids droop. “Maybe... a quick nap. Just going to nap for a few minu—.”

She slumps forward mid sentence, and passes out before she even hits the floor.

“Mmmmphmm” Rarity groans from her spot on the floor. She opens her eyes and looks around, noticing that it getting dark outside. “How long have I been out for?” She rubs her face with a hoof and sighs. “Well, looks like the potion was a scam. I think I just paid 1000 bits for a sleeping potion.”

Rarity sighs again and shakes her head, resigned to her fate as being the mare with the smallest teats in town. She slowly picks herself off the ground and stands up on all fours, only to immediately notice something feels very different down where her teats are. She pauses for a moment and swings her hips, feeling her teats swing heavily with the motion of her body. Her face lights up “I can feel them, and they feel huge! The potion worked after all!”

Rarity lets out a squee and trots towards her fashion mirror. She can feel them jiggle with each step she takes, and her mind starts to fill with fashion ideas on new dresses she can make that will show off her new assets.

She is halfway through envisioning a new skirt with transparent slices, when she sees her reflection in the mirror and stops dead in her tracks. Her teats are not just larger, they are massive. They are sagging down past the hock on her legs, and they have four nipples.

Rarity’s chin trembles, she didn’t have cute pony teats with two nipples, she had a gigantic set of four. She somehow grew an udder. A cow’s udder! She feels her heart start to panic and she backs away from the mirror, trying not to think about the feel of the massive udder swinging between her legs. “It’s okay Rarity, we can fix this,” she says in a shaky voice and slowly trots over to the empty potion bottle.

She picks it up and reads the text out loud, hoping it included a mention of a cure. “Transformation potion targeted to increasing teats. Avoid handling the transformed body parts for several days after use. Untested changeling magics, use at your own risk.” Rarity sets the bottle back down and grits her teeth. This result is hardly what she wanted from that potion. She wanted bigger teats to attract stallions, what is she supposed to do with animal udders! Who would make a potion that gives a mare udders!?

Rarity face hoofs at her own stupidity, now she would have to go talk to Twilight and seek her magical aid in getting rid of these cow udders. Urgh, this is going to be so embarrassing. Rarity ponders how to bring up that conversation but then stops herself as she remembers what date it was. “Oh no, Twilight left for Canterlot today. She won’t be back until next week...”

Rarity laments her situation, realizing she is going to be stuck with this udder until Twilight gets back. She glances back at the mirror, disgusted by her bovine anatomy. Such a filthy creature, cows are. You would think they were close to ponies, but no, ponies are sophisticated creatures with intelligence and fashion. Cows are nothing but mindless creatures meant for living in pens and giving milk. It’s just uncouth of Rarity to now share a body part with those, things. If only there was some way Rarity would cancel this transformation right now...

Her eyes go back to the bottle. What did it say? ‘Avoid handling the transformed body parts for several days after use’. Rarity taps her chin. Hmm, maybe that’s how she can break the spell? If she handles her transformed teats right now, that should interfere with the potion’s effects, right? Will that make teats go back to normal? Mmm, it’s worth a shot.

Rarity lays down on her back in her bathtub, and rests her hooves on her plump udder. She is hesitant to get started, it just feels so disgusting, so uncultured, to do something like this. Rarity gulps and decides to just get it over with. She starts to massage her new anatomy, rubbing circles in the warm, soft, flesh.

“Ooooo, that feels rather nice.” Rarity massages her udder some more and feels waves of pleasure roll through her body. She never massaged her pony teats before, as they were too small. Well, Rarity certainly didn't have that problem anymore.

It doesn’t take long for Rarity to start rubbing her four long nipples, biting her lip as the pleasure becomes even more intense. Feeling moisture on her hooves, she looks down and sees fresh milk. It was flowing out of her udder each time she pulled on her teats! She bites her lip, this is far more than she bargained for, but it feels amazing to tug on her teats like that.

Rarity loses herself in the pleasure as her hooves work her udder dry over the next fifteen minutes. “More... more...” Rarity pants as she tries to milk herself some more, but sadly realizes she is spent. She closes her eyes and sighs, already depressed that it is all over. Well, Rarity reasons, the act of milking should have altered that potion effects. So her teats should shrink back to normal now. That’s a pity really, she wishes she could milk herself just once more.

With another sigh Rarity opens her eyes and leans forward to sit up and look at her body. She blinks and tilts her head. Is her udder... bigger? She grabs it with her forehooves and inspects it. It does seem bigger for some reason. Hmm, that’s odd, the potion was supposed to be altered by handling her new teats. Shouldn't the udder have gotten smaller?

Rarity clambers out of the tub, her fur dripping with milk from lying in the bathtub with it. She knows she should really take a shower to clean all that off, but for some reason feels fond of the idea of smelling like milk. She pats her belly as it rumbles, “I am absolutely famished. And since I just shed a couple of pounds of milk, I think I deserve a small snack.”

Rarity trots off towards the kitchen, her wet fur dripping milk all over the floor as she walks. She passes by a mirror and pauses when she spots a bit of dark color on her hind leg. She peers closer to confirm it, and yes, she has a splotch of black on her white coat. She scoffs, “Must be that silly potion, it not only gave me udders, it gave me a cow’s spot too.” She shakes her head. “I better make sure to milk myself again as soon as possible, it should get rid of that for me.” Rarity bites her tongue as she heads into the kitchen. She knew that milking herself probably wouldn’t remove the spot, but felt eager for another reason to lie down and play with her teats. It just felt so heavenly! Mmm, but she wants food first. Food, then milking. Then maybe more food?

Rarity clambered out of the tub again, panting. She’s been at it all night, and she lost count of how many times she’s milked herself. All she knew was each time was more pleasurable than the last, and each time she got more hungry. She lumbered into the kitchen and opened the fridge, creasing her eyebrows as she looked inside. “Why is the fridge empty? It was full this morning...” She snorts and looks inside the pantry, noticing it is also mostly empty. Her eyes spot a tub in the back, and she grabs it to bring it into the light, squinting to read it better.

Vegetable Shortening: 25 pounds

Rarity grabs the tub of fat, grinning as she realizes it was unopened and full. She smacks her lips loudly in anticipation and brings it over to the table. She frowns at the table, it's covered in wrappers and bits of trash from all the other food she ate. She lowers a hoof and dumps all the trash on the floor, then places the tub of fat on the table and sits down. She pops the top and looks around for a spoon. Not seeing one, she dunks her hoof in and starts shoveling the lard-like substance into her mouth, chewing loudly. Man, was she ever hungry.

Rarity leans back as she swallows another hoof full of shortening. She looks around the kitchen, admiring the mess she made in the past 12 hours. She knows she normally keeps this place spotless but right now... Rarity shrugs, feeling really at home living in a filthy place. She sniffs her foreleg, her nose burning at the rancid smell of twelve hours of sweat and cow milk soaking into her fur. Rarity feels a tingle go down her spine when she realizes just how dirty she has become. It felt really good to her, to just let it all go for once. Drop all the prissy formalities and proper etiquette. Just live naturally for once, you know, like an animal or something.

Rarity giggles at that thought and continues to scarf down the shortening as she fantasizes about being more and more filthy. She puts her hoof back in the vegetable shortening tub, only to find it empty. Rarity frowns, wishing she had a second tub of that stuff. Oh well, it was probably time for another round of milking. Rarity drops the box on the floor and heads back to the bathroom, pausing to look into the mirror on the way.

She rears back on two legs and blushes at her appearance, finding it very appealing for some reason. She runs a black hoof down her plump thighs. She knows she gained a ton of weight, but she feels that goes really well with her new look, and her new, lovable udder.

She drops back down to all fours and does a little spin in front of the mirror. “I’m the cutest little cow ever, hehe.” Rarity giggles, then decides to try something. If she really wanted to be a cute little cow she had to sound like one!

“Mooo.” Rarity tries her best to imitate their noise. “Moo moo!” She wiggles her fat rump and does another turn in front of the mirror. She tries again, opening her throat up wider this time: “Mooooooooo~~”

Rarity freezes, that was too real. That totally sounded like a real cow. She turns around and looks around the room, half expecting a real cow to be behind her. What else could have made that noise? Rarity laughs nervously and backs away from the mirror, this was getting a little creepy. She wasn’t this cow-like when the potion first hit her, right? Rarity scrunches her nose and tries to think. Her mind wanders to trotting around green pastures and wondering what it would feel like to get milked alongside other cows in a stable. Rarity giggles, what was she doing again?

Oh right, she was on her way to go milk herself again. She loved milking! Rarity trotted towards her tub, eagerly anticipating the feel of hooves on her udder. And maybe this will help her go back to normal too! That was the plan, right? Something about transformation being altered by... something? Rarity giggled at the complex thought and laid down, resting her hooves on her lovable udder. She still had plenty of time left tonight to work out that problem.

The next morning...

Applejack yawns as she heads outside. Winona is barking at something out here, so she might as well come check it out. Applejack figures it’s probably just a rabbit or something caught under—

Applejack comes to a dead stop as she spots the intruder Winona is barking as. After a good five seconds of staring, Applejack opens her mouth. “...Rarity?”

Rarity ignores her for a moment, this grass tastes fantastic and she wants another mouthful. After a few more seconds of chewing away on grass, Rarity glances up at the mare and talks through a full mouth. “Mmmph, morning AJ.”

Applejack takes a few steps back and looks her friend over. The mare appears to have gained several hundred pounds, is speckled white and black like a cow, has a cow-like tail, is chewing grass like an animal, and has a massive udder swinging between her legs. Applejack gulps, even Rarity’s horn has changed, instead of being a single, white unicorn horn, Rarity now has a pair of little, bovine horns coming out of either side of her head. Applejack almost doubted this even was Rarity, but no, she has Rarity’s cutie mark right there. “Rarity... what the buck happened to you!?”

Rarity munches some more grass. “I ran out of food at home, and it was getting really hard to milk myself any more, so I decided to come here.” She pauses to moo. “I was hoping you could milk me, it’s so frustrating not being able to milk myself anymore. I guess that’s expected though, cows can’t normally milk themselves.” She giggles and gives out another cute little moo.

Applejack gulps. “Rarity, you have to tell me what caused this! We can fix this with Twilight and—”

“Twilight isn’t here. She’s gone until Moooooo~nday” Rarity takes another mouthful of grass, amused at how her moos are starting to involuntarily come out in speech.

Applejack starts to panic a little, but reasons she can take care of this. “Well, okay, don’t worry Rarity. We’ll get you somewhere safe and keep you there until Twilight gets back and fixes this.”

“Moooooo~ve me out onto your dairy pasture, I want to graze with the other cows.” Rarity bites her lip in arousal. Just the thought of grazing like an animal is turning her on.

“What!? No, why would we do that? Rarity, snap out of it!”

Rarity frowns. “Well, at the very least, can you milk me?” She waggles her fat, bovine ass and moos. “I’m so full, I need relief.”

Applejack sighs, then looks closely at Rarity’s udders and gives them a professional, farmer’s appraisal. “I would really rather not, Rarity. But those are pretty full, is it uncomfortable?”

“Oh yes, yes they most certainly are full. Please moooo-ilk me.” Rarity bites her lip in excitement and raises her bovine tail.

AJ rubs her forehead, “Fine, but not here, come with me to the stables.” She is already regretting making the offer, who milks one of their friends? That’s just gross. Urgh, well, someone has to do it.

They both trot towards the milking stable, which stood on the edge of the Apple’s vast cow pasture. Rarity felt her heavy body and udders swing with each step, and she looked over the fence at all the happy cows in the pasture. “How many other cows do you own?”

Applejack raises her eyebrow at the wording, but answers the question. “We have over 150 heads in the dairy farm.”

“And you milk them all?” Rarity sniffs manure-scented air and already starts to feel excited to be here.

“No, well, we could, but we bought an automated milking station. It’s set up on the other side of the pasture and the cows learned how to walk through it to empty their loads.”

Rarity starts to drool. “Applejack, did you just say automated milking station? Oh, wow. That sounds absolutely moooo-valous. Can I use it?”

Applejack shakes her head and pushes open the door to the stables. “No Rarity, that’s for the herd. I wouldn’t feel comfortable with you using it like that.”

Rarity’s ears drop, why wasn’t she a part of the herd? That sounds so amazing! All the grass you can eat, and an automated milking machine to use whenever you want? There were probably even bulls out in the herd too! Big, strong bulls, ready to put her in her place and treat her like the worthless animal that she was! They would be big, sweaty, dirty, and they—

“Rarity!” Applejack pokes her with a hoof. “I said we’re here, and ready for the milking.”

She shakes her head slowly and brings herself back to the present. “Oh, sorry darling, I was just thinking of something mooo-nderful.”

Applejack bites her tongue. “Yeah, and if you could cut out those cow puns, that would be great.”

“Hmmmm?” Rarity moos in response.

Applejack facehooves and points at an open stable. “Whatever, just, get in the stable and let’s get this milking over with.”

“Oh yes, the milking!” Rarity lumbers her large frame into the stall, immediately enjoying the feeling of standing in a dirty milking stall. “Moooooo, Applejack darling, isn’t this wonderful?”

“Isn’t what wonderful?” Applejack scrunches her face as she kneels next to the udder and gets the milk bucket in position.

“Ahhh~” Rarity feels a wave up pleasure travel up her spine as the farmer’s hooves start to work her udders. “It’s just, mmmm, everything here is so dirty and filthy, and for once I belong here. It’s so refreshing to fit in like this...”

Applejack gives her friend a worrisome look, but continues to work the teats. “Whatever you say, sugarcube.”

“Mooooooo”. Rarity’s eyes roll back in her head from the pleasure down below. She focuses of the feeling of being milked, and this time can even feel the transformation magic spread through her body, fueled by the milking action on her teats. “Mmooooooo, yes, treat me like the mooooo, dirty animal I am and, mooooooo.” Rarity feels her tongue get flatter and her muzzle enlarge a little and another wave of changes rack her bovine body.

The milking stops abruptly as Applejack notices something on Rarity’s flanks. “Uh, Rarity?”

“Moooooo” Rarity wiggles her rear, upset the milking ending prematurely.

“Rarity stop mooing for a second, this is serious!”

“Mooooo...?” Rarity struggles to speak properly. “Mooo—hmmm? What is it, darling?”. Rarity moves her tongue around her mouth. It is getting really, really hard to form words. Mooing is so much more natural, why can’t she do that instead?

Applejack takes a step back from Rarity. “Sugarcube, I don’t know what to tell you. But I don’t see your cutie marks anymore.”

Rarity’s large, bovine ears perk up, and she turns her large head to look at her flanks. Her flanks were truly massive, and they showed nothing other than black and white splotches. Rarity smiles, “Mooo problem, no problem at all.” She wiggles her cow ass. “Moooo I like this.”

“Rarity!” Applejack slaps her flank with a hoof. “What’s gotten into you!? This is serious!”

“Moooo!” Rarity’s eyes light up with pleasure. “Hit me again moooo-plejack, call me a bad cow. Call me a filthy, useless cow.” Rarity feels her heart race with excitement. She didn’t have a cutie mark anymore! That means she’s more cow than pony, right? Maybe Applejack will let her graze the field and use the automated milker now!

Applejack stumbles a few steps back from the cow, no wait, from the pony. Applejack curses herself for even thinking of Rarity as the former, but she really, really looked like one. Even her mane was starting to fade away! What could have caused such a drastic, sudden change in her friend?

“Moooo, more milking please.” Rarity wiggled her massive cow ass and made her udder jiggle. “Moooooo-re.”

A light clicked in Applejack’s head. “Rarity, it’s the milking! The milking seems to be driving that darned transformation!”

Rarity moos. “Don’t be silly, it feels too wonderful to stop, and these changes have been heavenly.”

AJ starts to panic. “Rarity, you’re becoming more cow than pony! I’m sorry, but we’re stopping the milking right the buck now! One more milking and we probably won’t even recognize you anymore!”

Rarity nearly cums at the thought. “Moooooo~ Oh, AJ, that would be fabulous. I could join your herd, and just live out there like an animal. Moooooooo~” Rarity takes a deep breath of the manure scented air and feels amazingly content with her situation.

Applejack trots forward and swings the milking door shut behind Rarity, locking her into the cow stall. “Rarity, honey, you’re going to thank for me this later. I’m locking you in here until Twilight comes back. No milking, no visitors. You’re going to just sit and wait for Twilight to fix this. In fact, we’re not even going to wait the week, I’m taking the next train to Canterlot, and I’m coming back with Twilight tonight!”

Rarity tries to back out of the stable, but the metal door holds fast. Rarity giggles, she was locked in a farm’s pen like an animal. The thought of that sends of wave of pleasure down her spine “Oh yes, mooooo-plejack, this is wonderful.”

Applejack glances into the milking stall, confirming that there is open bag of corn feed and a water trough in there for Rarity to sustain herself out of. It is hardly something a pony would consent to eating and drinking out of, but AJ has the feeling Rarity won’t mind.

“Alright Rarity, you understand? I’m locking you in here and I’ll be back in a couple hours. Help is on the way!”

Rarity moos repeatedly, and Applejack backs out of the stable, locked the front door behind her before running off.

Inside the stable, Rarity continues to gorges herself on the corn feed. She knew she had to really plump up if she wants to be an ideal cow. Rarity giggles with glee into her feed, “Mooooo-re food, mmmm, make me a fat cow, moooooo, I’m a fat, dirty cow...”

As she gorges on food, Rarity’s thoughts wander, once again, to bulls. She wonders if bulls only mate with the fat cows? She hopes so, she’s going to be the fattest, dirtiest cow out there. She moos again and considers masturbating to thoughts of bulls. That would be fun, doing that right in this stable, right here in the mud and in the straw. She moos and decides that no, cows don’t masturbate, they wait in their stables like good cows. The bulls will mate with her when they are ready.

And oh, is she ready.

“Applebloom, there you are!” Applejack, looking clearly in distress, trotted up to her little sister.

“What’s the matter, sis? Are you going somewhere?” Applebloom looks inquisitively at her older sister’s saddle bags.

Applejack nods. “I’m making an emergency trip to Canterlot to bring Twilight back here for something really important. ”

“Ohh! Can I come with you!?” Applebloom claps her hooves with excitement.

“I’m sorry lil’ sis, but not this time. It’s a short trip, I’ll be back in twelve hours or so. Big Mac is still out on business, so that means you’re going to have to hold the fort until we get back, okay?”

“Easy peasy, sis, I’m a big filly!” Applebloom nods vigorously. “And besides, Caramel is still around doing some chores, so you’ve got nothing to worry about! ”

Applejack pauses, she forgot Caramel is working today. They hired him to stop by the farm once a week and help out by doing odds and ends. Hmm, it would be really embarrassing for Rarity if Caramel walked into the stables today. “Say, Applebloon, hun.” Applejack nudges his sister playfully. “Tell Caramel that he has the rest of the day off. Oh, and as for you, stay out of the stables until I get back, okay?”

Applebloom tilts her head in confusion. “Um, okay?”

AJ checks the time. “Darnit, I really need to run and catch the train, Applebloom. Just do as I said, and I’ll be home in a few hours!”.

“Later, sis, safe trip!” Applebloom waves as Applejack gallops away.

AJ runs off, still a bit shaken from her encounter with Rarity. That was really bizarre, what could possibly make Rarity of all ponies want to turn herself into a feral cow? Oh well, AJ knows that as soon as Twilight gets here she’ll fix the problem.

Applebloom heads out to find Caramel. Halfway there she spots a friend of hers walking around the farmhouse. “Scootaloo? What are you doing here?”

Scoots looks up and smiles. “Applebloom! There you are, I was looking for you! Alley Way told me that today is two-for-one bowling over at the bowling alley! Let’s go play a few rounds!”

Applebloom waves a hoof, “I gotta do chores and stuff first, maybe we can go later?”

“Aww come on.” Scootaloo frowns. “Can’t you skip them just this once?”

Applebloom shakes her head. “No, it’s important, I have to tell Caramel to go home early, and I have to stay away from the stables.”

Scootaloo freezes and her wings perk up. “Wait, what? Why would you have to stay away from the stables? Isn’t that just where you just keep some of the cows?”

Applebloom taps her chin with a hoof. “”Hmm, Applejack never said why, but she warned me to stay away. But why would she...?”

Scootaloo smiles devilishly. “You thinking what I’m thinking Applebloom?”

Applebloom returns the look. “Cutie mark crusader warning investigators!”

Rarity shifts her weight in the milking stall, mooing mindlessly as she waits for someone to come milk her. Her desire to be treated like a worthless cow aside, her udders really were getting quite full. Applejack had stopped milking them before she was empty, so it didn’t take long for them to become painfully full. Why did Applejack leave her here without milking her dry? Is she a bad cow? Rarity gives out a sad moo.

The stable door creaks open and the voice of Scoots could be heard “Ah ha, I told you these lockpicks would be useful! Aww, but no cutie mark for breaking and entering...”

They wrinkle their noses as they step inside. Scootaloo turns to Applebloom. “It smells like manure in here!” Rarity turns her head at the voice and spots Applebloom and Scootaloo enter the stable.

Applebloom rolls her eyes. “Yeah, doofus, it’s a stable for cows, what do you want it to smell like?”

Scootaloo freezes in her tracks. “...Rarity?” She stares straight ahead at the purple curled mane on the cow in front of them.

The cow moos and slowly turns to face them. Meanwhile, Applebloom raises her eyebrow at Scoots. “What? You want the stables to smell like Rarity? What does that even mean?”

Scootaloo rolls her eyes and points at the cow that was now facing them. “No, that cow looks like Rarity, look!”

Rarity shifts her weight and moos happily as she sees the fillies take in her appearance. She is elated that they barely recognized her, maybe she really could become a real cow! She knew she was so close, just one or two milkings and she’d fit right into the herd.

The fillies study her face. This cow looks really weird, her muzzle was still pretty pony-like, and she definitely has Rarity’s mane. Cows don’t have manes... but the rest of her body looks 100% dairy cow. “Um, Applebloom, what is this? Is this Rarity?” Scoots tilts her head.

“I don’t know, Scoots, this isn’t like any cow I’ve ever seen.” Applebloom unlocks the stable door and clicks her tongue at the animal. “Come here, girl, come out of the stable!”

Rarity lumbers forward, her massive bovine body now more than twice as large as the frame of a typical pony. She moos.

Applebloom trots around the back of the cow. “She can’t be Rarity, look at these udders!”

Scootaloo agrees, “Yeah, and look at how filthy she is!”

Rarity nearly orgasms right there on the spot. They really thought she was just a regular ‘ol stupid cow! And they called her filthy! She moans, and bites her tongue to stop herself from crying out in pleasure. This is almost too much pleasure for her to handle.

Scootaloo's ears twitch. “Applebloom, did you hear that? Did she just moan?”

Applebloom chews her lip for a moment. “She probably wants to be milked, that’s all. Look at how full these udders are!”

Rarity’s eyes light up. ‘Oh god, yes.’ she thinks to herself.

The cow jiggles it’s ass and it’s full udders sway. Applebloom nods at the gesture. “Yeah, that must be it. With Applejack telling ponies to stay out of here, no one has probably been milking the poor girl.” Applebloom gets in position next to the udders. “Scootaloo, pass me that milk bucket.”

Scoots frowns. “Eww, you’re going to milk it? Milking cows is gross.”

Applebloom rolls her eyes, “And where do you think your milk comes from, doofus?”

Scoots passes her a bucket. “Urgh, just get this over with. I wanna go bowling.”

“I thought you wanted to investigate the ‘mysterious warning’ about the stables?” Applebloom asks as she puts the bucket in position and starts milking the full teats.

Rarity closes her eyes in pure bliss as her massive udders spew forth thick, creamy milk. She’s been milked before, but not like this. This filly honestly thinks she is a normal cow, and is treating her like one. AJ’s milking was a bit gentle since she knew it was Rarity. But this filly is treating her rough. She doesn’t care about Rarity’s feelings or thoughts, she’s treating Rarity like the livestock that she is. All Applebloom cares about is getting milk to sell, that’s all Rarity is to her. She's just a stupid animal that gives them milk.

The thoughts are too much for her, and Rarity feels herself orgasm and squirt her arousal.

“Ewwww! Gross!” Scootaloo stumbles backwards and wipes the juices off her foreleg. “That cow just pissed on me!”

Applebloom looks back and sniffs the air. “That’s not urine, that’s just, well, I guess ‘ol Bessie here got really excited about something.”

Rarity hears the name name Bessie and nearly cums a second time. ‘Yes, call me that, give me a common animal name like the worthless cow I am!’

Scootaloo turns and heads for the rear door, the one that opens up to the pasture. “Bleh, this is too gross, I’m going to go practice flying.”

Applebloom keeps working the cow’s teats as she calls out over her shoulder. “But what about bowling?”

“We’ll bowl once you’re done doing gross farm things. I’ll be outside, so hurry up.” Applebloom watches her pegasus friend walk out into the pasture.

As Rarity feels her udders empty, she feels another wave of changeling-based magic coarse through her body. Her face scrunches up, and her bones twist. She moos in shock as she feels her muzzle extend further and her tongue changing once again. Her entire head contorts into a design more common for a barnyard cow. Her mane starts to feel unusual as well, and as she shakes her head she notices the weight of her purple curls getting lighter and lighter, until at the end she can’t even feel her mane anymore.

Unfortunately, Applebloom was busy milking the udders and paid no attention to the final transformation Rarity was experiencing. Eventually, the milk bucket fills and Applebloom stops to wipe the sweat of her brow. “Phew, there you go Bessie, you should feel less full now.”

Rarity moos in true appreciation.

Applebloom steps back and pats the animal on the side. “Good girl, you have nice, healthy udders. I don’t know why you have a mane like Rarity but—”

Applebloom freezes and stares at the cow. The cow’s mane is completely gone! So is the cow’s pony-like face. “W-what? Bessie, where did your mane go?!”

Rarity moos loudly. She doesn’t really have a choice at this point, her tongue and vocal cords are 100% bovine now, and she finds herself totally incapable of pony speech.

Applebloom steps back in shock. This must not be a normal cow, and maybe that’s what Applejack was warning her about! This cow had looked like it had pony parts, but it just shapeshifted them away! Maybe it's like, a demon cow or something! She should have kept it locked up until Applejack got back!

The scared filly backs away from the scary, shapeshifting cow, and looks for her friend. “Scootaloo! Scootaloo, help!”

Rarity moos and takes a few lumbering, slow steps. It unintentionally scares Applebloom, and she runs away in a panic. “Scoooootalooooo!!” Applebloom gallops out through the open pasture door in search of her friend.

Rarity watches the filly run out through the open door. She sniffs the air. ‘Mmmm, grass...’

“Scootaloo! There you are!” Applebloom finally finds her friend and slows to a trot.

“Hey Applebloom, finish your chores? Can we go bowling now?”

Applebloom shakes her head. “Scootaloo, something happened, I finished milking that cow, and it transformed!”

Scoots raises an eyebrow. “Transformed? Into what?”

“Remember the weird, pony-like face and the purple mane? It’s gone! It looks like a normal cow now!”

“What?” Scootaloo rears back. “That’s impossible!”

“I know! Come back with me, and I’ll show you!” Applebloom turns and heads back to the stables.

Scootaloo gallops behind her friend “Ooo, Applebloom, maybe that’s what the mysterious warning was about.”

“I know! I bet Applejack was worried about that cow and left it isolated in the stables. We better lock it up and make sure no one else milks it until Applejack gets back.”

The two fillies gallop for another minute or so before arriving at the stables.

The empty stables.

“Umm, Applebloom, where is the cow?”

“Uh oh...”

Rarity moves through the herd, mooing in pure bliss and rubbing her sides up against all the other cows. She wanted their scent all over her, their filthy, animal scent. She moos again and feels her fat, cow pussy get wet at the realization that these animals accept her. They all seem to think she belongs in the herd. Well, they are right, I do belong here, I’m just a fat, dirty cow like all of them! She moos and makes her way towards the automatic milking machine.

Scootaloo trots around outside stables. “Applebloom, the cow is gone! How are we supposed to find it when it looks like all the rest?!”

Applebloom facehoofs, “I left the door open, it’s all my fault! My sister is gonna kill me when she finds out I lost that special cow! I’m so grounded.”

Scootaloo whimpers. “You can’t get grounded Applebloom! With Sweetie Belle away with her parents, you’re the only friend I have in Ponyville!”

“Well, Scoots, unless we find that cow, I’m going to be grounded all summer.”

Scootaloo taps her chin for a moment before grabbing the closest cow she could find, then leading it towards the stables. “It’s okay Applebloom, we can use this cow!”

Applebloom tilts her head. “But, that’s not the right one.”

Scootaloo pushes it into Rarity’s stable and locks the gate on it. “How do you know? We can just pretend it is!”

Applebloom shakes her head. “No, look, it has an ear tag and a cowbell on it. The shapeshifting cow didn’t have those.”

Scootaloo’s eyes brighten. “Why didn’t you say so! We can go through the herd and just find the one cow without a cowbell or ear tag!”

“Oh yeah! You’re a genius Scootaloo!”

The fillies take a few steps towards the door, but then Applebloom stops. “Wait, hold on.”

“Come on, Applebloom, let’s hurry and find that cow so we can go bowling already.”

“Hold on a second.” Applebloom trots over to the random cow they put Rarity’s stall, and she removes the cowbell and ear tag from it. “This is just in case Applejack comes home before we find the real cow. It should buy us some time to find the cow that’s actually missing an ear tag.”

“Good thinking Applebloom, now let’s go!”

Rarity stumbles out of the milk machine, mooing lazily. ‘Hoo, that was, moooo-re enjoyable than I thought.’ Rarity chews some grass absentmindedly, not really noticing that the mooing is starting to appear in her thoughts now. In fact, just thinking in complete sentences is started to get really hard for her. She doesn't seem to care though, and she turns her head as she smells something particularly arousing. It’s a powerful scent, and her body moves automatically towards it.

She spots the source of the smell and feels her body tingle in excitement. It's the smell of a nearby bull. The beast is truly massive, probably close to a thousand pounds of animal. Rarity moos and trots closer, her fat cow pussy already dripping wet from spending all this time around the other animals. The bull sniffs the air and looks over at the the newest member of the herd. He grunts and moves to assert his dominance and claim her.

Rarity moves her tail to the side and let's out a feral grunt as the bull mounts her, his massive cock sliding into her animal cunt. Rarity moos loudly as her body gets rocked, her only thoughts being that of mating endlessly and birthing many calves to help her herd. As the bull cums inside of her deep folds, Rarity let out another moo. She enjoyed the mating and wondered why she didn't mate with the bull earlier in the week. After all, she's been a healthy cow since... how long? Always, right? Rarity grunts as the bull dismounts her, her memories rapidly fading.

“Caramel! Hey, Caramel!” Scootaloo spots the farm hand trotting through the cow pasture. Scootaloo is hoping he can help them find the cow without the ear tag, it’s been over an hour and they still haven’t found her.

Caramel looks over at the two fillies and smiles. “Hey, girls, what’s going on?”

Applebloom trots forward. “Oh... hey, Caramel. Shoot, I was supposed to tell you to take the day off.”

Caramel smiles. “Oh, that’s no probably, ‘lil filly, I love helping you guys out. Oh, and by the way, when you see your older sister, can you tell her to order more cow bells and ear tags?”

The two fillies jump with excitement. “You found the cow without an eartag? Where!?”

“Oh she was headed for the milking station a little while back.” Caramel waves a hoof. “But don’t worry, it’s taken care of.”

Applejack’s heart skips a beat. “What do you mean ‘taken care of’?”

He smiles innocently. “I always carry a spare bell and ear tag in my saddle bags, so I took care of it.”

“You what!?” Scootaloo shrieks.

He raises an eyebrow. “I uh, gave her an ear tag and a cowbell. Standard procedure, I know those things fall off from time to time, so whenever I see a cow in this pasture without one, I just clip their ears and give them a bell.” Caramel nods, proud of his work. “And that’s why I said you should tell Appleback to order more. I’m running pretty low on cow bells, only have like three left in my bag.”

Scootaloo stares ahead and says nothing, and Applebloom sinks down. “You gave her a cow a bell and ear tag, identical to the other cows...”

Caramel trots away from the fillies. “Yep, no worries about it, little fillies. I’ll take the rest of the day off since you said I was supposed to. Bye, kids.”

Scootaloo stares off and says nothing as she watches Caramel leave.

Applebloom swallows the lump in her throat and fills with worry. “We have zero chance of finding that new cow now.”

Scoots nods slowly. “Well, at least we left that other, random cow in the stable. Applejack probably won’t be able to tell the difference.”

Applebloom bites her lip. “But what if there was something special about that cow we lost? It had Rarity’s mane, maybe that meant something? What if... what if...” Applebloom trails off.

Scootaloo wipes her nose with her forehoof, then turns to tap her friend on the shoulder. “Eh, fuck it, dude. Let's go bowling.”

The next day...

Rarity grazes lazily on some grass by the fence. She is really hungry. Getting fucked by bulls every few hours is pretty exhausting.

“Any progress, Twilight?”

“Sort of, let me show you.”

Rarity’s ears flicker at the noise of the ponies. She watches the two ponies walk right past her and go inside the stable. Rarity moos idly as she chews, her cow cunt dripping fresh bull semen every few steps. She wonders what those ponies were talking about. She vaguely remembers being able to understand pony speech at one time, but... no, that’s just silly, why would a cow understand pony speech? Rarity moos and decides to head over to the milking machine again, far away from the two ponies inside the stable. Rarity chews her grass as lumbers across the pasture, enjoying her life as the fattest animal in the herd.

Meanwhile, inside that stable, Applejack and Twilight stare at the random cow that Scootaloo has placed in captivity. Applejack sighs. “Find any way to change this poor cow back into Rarity?”

Twilight shrugs. “It’s some complex magic alright, I can’t detect anything, she really does just seem to be a normal cow.”

Applejack frowns. “But we know it’s her, it has to be. Can you fix it?”

Twilight nods. “Yeah, probably. I know a spell that will turn a cow into a pony. I could use that to make this cow look just like Rarity did.”

Applejack nods. “But what about her mind? The last time Rarity talked, she said she wanted to be a cow. So this cow here probably thinks it’s supposed to be a cow.”

Twilight raises her eyebrows. “Well... the forbidden section of the Canterlot Archives has brainwashing spells. I think we could counter-brainwash her. You know, force her to think she’s Rarity.”

“Ooo. sounds great Twi, I knew your fancy magic would fix everything with no ill consequences!”

Twilight smiles and charges up her horn. “Yep, don’t worry, this cow will be back to living Rarity’s life in no time at all.”