You could do a curvy, big-breasted girl a lot of good by filling her melons to the brim with creamy, rich milk. Especially if she was already spilling out of her clothes in the first place!

Before she'd determinedly turned her womb over to you, rejecting contraceptives and anything else you'd offered up, Fluttershy had already been the most livestock-ready gal in all of Ponyville. Her mega-thick rear swallowed up shorts, turning them into g-strings. Her wobbling, pendulous breasts made her into a walking porno, each melon-sized half of her bosom turning full-sized sweaters that could hang to other girl's knees into miniscule tank-tops with acres of trembling underboob. And of course, the gentle, loving personality of a saint to top it all off.

But since the pregnancy, goodness gracious! Ponyville's incumbent chesty sex goddess had had a bouncing breast meat explosion, her body expanding in leaps and bounds in every fertile direction! Hips! Chest! Ass! It was all deliciously swollen up, reddened from embarrassment and ready to be put to use by the right cattle farmer.

The earth seemed to positively thunder under her feet with each ponderous step, the supermodel-level beauty shuffling about Ponyville with considerable concern for her new assets. If she turned a corner too quickly, she could knock a pony-drawn cart onto its side. If she sat down in her favourite armchair too fast, she'd push right down onto that padded cushion all too fast, breaking through the wooden struts underneath it with all the force of a dropped boulder.

Even just strolling the streets could be tricky... As you were about to find out today! A very flustered Fluttershy knocked politely on your front door three times before letting herself in... Her bottom lip was trembling, and she fully threw herself into you as soon as she saw you.

"Mmmn! It happened again! I can't believe it~" she whined, burying her face in your shoulder. Everything from your neck to your crotch was smothered completely in a crashing, obscuring tidal wave of chest. Fluttershy's newest yellow dress seemed to be holding her in for the time being, but there was no telling when her next growth spurt would reduce it to tatters on the floor!

You politely inquired what was wrong. She sniffled and looked up at you, still only coming up to your chest despite all her new growth.

"Sniff~ It was, um, dear, sweet little Angel Bunny again... I know he doesn’t mean any harm, but... Well!"

She dried her eyes slightly and leaned away from you. "I was having a nap on a park bench and I woke up to f-find him crawling all over my breasts... And then when I went to Rarity's to get my new dress made, she was stealing gropes wherever she could!"

She shook her head and returned it to her favourite perch on your chest. "I need relief. Um. Right now... P-Please..."

You stroked her hair gently, leading her to the table where you'd already set up two cups of tea. She brightened considerably when she saw them. Fluttershy eased her plump rear down onto one of the wooden chairs, causing it to creak beneath her weight, and placed her cup on top of her chest. She took a few sips, then looked down at it, then back up at you. In the tiniest squeak, she whispered "... There's n-no milk."

You flushed a little, avoiding her gaze. Of course you hadn’t included any milk... It was all she’d be seeing today, from morning till the evening. Milk would be gushing from the tips of her breasts non-stop, and the breasts of her friends. All so the ponies of Ponyville wouldn’t go thirsty!

You told her as much, and she crossed her legs. Fluttershy let out a little, "Ahh~", half-understanding, half-arousal. She was anxious, and her body began heating up at what was to come.

She unzipped her dress at the back and gently shifted it down, tugging it until one of her nipples was freed, the milk-dispensing nozzle almost as large as the teacup itself! She pointed it at the rim of the teacup and began to gently kneed her chest...

"Fluttershy! Wait!"

A blast of creamy white milk shot from her bosom, hitting the teacup and toppling it over completely! Fluttershy gasped, then shrank back into her chair. "M-Meep."

You smiled softly and stood up from your chair, pushing your cup of tea across the table to her. She quietly sipped it as she watched you clean the mess up. "Th-Thankyou."

"So are Pinkie and Babs Seed coming today?" she asked in a little voice. You nodded, having already got them set up in the barn, ready for her to join them and make six milking breasts.

She leapt up from her seat, sending her enormous breasts into a violent wobble as she drew her small handbag from her lap. "Ohhhh! Why didn't you tell me? I need to get changed!"

Fluttershy ran out of the room as fast as she could, floorboards creaking underfoot. When she came back later, you sucked in a deep breath. The naughty hot pole that had put that child in her belly began to get hard.

Fluttershy was as good as naked. The yellow-haired pony with the beautiful mixture of wings and pink hair spilling down her back had stripped her clumsy, restrictive dress right off her figure. She replaced it with clothes far more fitting what she truly, really wanted to be.

Her cowprint bikini looked as lewd as ever, filling your mind with visions of the day's work lying ahead. Ponyville's men and women would soon arrive in droves with empty milk bottles, and every last one would require filling!

The small top consisted solely of a pair of triangular patches about as big as one of her large, soulful eyes, tied together with little more than a few pieces of strained silk cord! Those dainty cups that would have struggled to keep Rainbow Dash covered, let alone Fluttershy, woefully underperformed at the job of covering her milk-dripping flesh-nozzles. Her obscenely large tits were held up and presented out for male hands by the tiny straps of fabric running up from each cup, meeting at a tie around her neck. Another silk strap connected the cups in the middle, stretched taut by her sheer size. The vast cleavage formed by those tightly condensed breasts made a trap no cock could hope to escape from!

Her hips were one and a half times as wide as they'd been six months ago and were left completely bare, aside from an adorable cowprint pasty slapped directly onto her pussy. She wouldn't have stood a chance of getting it in between her tree-trunk thighs without being able to sit in front of the bathroom's full-length mirror with her legs spread wide. Shiny red slut-heels adorned her hooves, clicking and clacking with each heel-toe step she took. She wobbled directly towards you in a straight line and waited meekly for orders.

You upraised the thing she'd been waiting for... Her favourite playtoy for these lazy afternoons you spent together. At the sight of the simple brown collar with the large cowbell hanging off of it, Fluttershy seemed to become electrified. Her small, pink tongue, just as adorable as the rest of her, waggled its way out of her mouth and her breathing quickened. That expression was too lewd for the rest of Ponyville, you'd decided. Much better to keep it to yourself.

"Please..." she whined. "Please put it on. I know I'm already so big, but... Uhn! Mmmn!" Her rosy cheeks flushed as she tried to look everywhere but at her favourite toy. Tried and failed! "Moo?"

Taking mercy on the poor pony, you slipped the collar around her neck and fastened it. Soon, Fluttershy was sighing happily as a magical glow began to surround her, changing her body for the plusher.

The collar was one of three such items in the village, purchased for no small expense for some very special ponies. You remembered when Fluttershy first saw the object in your shaking hands and understood what you had in store for her. You wanted her to live life as a grazing, mooing dairy cow. A super-heavyweight Lactation Goddess with tons of pleasant pudge, full cheeks and an incredible behind and rack. She was already renowned for her impossible largeness, and you wanted her to grow even bigger? She took it readily, with a guilty smile on her lips.

Those words she'd whispered in your ear on that day still came to memory easily... "Please take good care of your dairy cow."

Fluttershy sighed in pleasure as the changes began to overtake her body. She could feel her breasts greedily absorbing the magic, growing bigger and bigger with each second that passed. She leaned back against the wall, both hands resting on her expanding belly. Her elbows and forearms vanishing from her sight as her growing breasts had nowhere to go but out to the side! If she'd been a dull-witted, pleasure-giving breeding cow earlier, now she was the definition of livestock, meaty all over and soft and ready for cuddling! What man wouldn't want to bury his face between those newly grown-out cow-tits, and rub and play with her belly?

More and more of Fluttershy's perfect body was revealed as her tiny bikini struggled to contain all her new assets! Her already mighty breasts expanded more and more cup sizes, hanging heavily and naturally in the cowprint cradle. Her buttcheeks grew out into a juicy shelf that stuck out luridly behind, vulnerable to all sorts of lewd touches! Even her pussy grew fuller and plumper, the pasty suddenly looking hard-pressed to keep those thick adult lips contained as she ground her mega-thick thighs together. Her thigh-gap even vanished to the growth altogether!

Last but certainly not least, a large pair of floppy cow ears, followed by tiny horns, sprouted from the top of her head. Fluttershy had gone from pony to bovine in the space of just thirty seconds, and while her body was done changing, her internal chemistry would take a little longer to catch up. Mooing became easier than forming sentences. The urge to pop out her cute calves so she could start on the next ones caused her to throb between her thighs. Complicated thoughts were mercifully buried under the urge to serve master and provide milk as Fluttershy went to a floaty, giddy happy place. It was embarrassing how much she enjoyed those changes in particular, feeling safe to truly indulge herself under her caretaker's concerned eye.

She let out a soft moan and ran her hands up and over her absolutely gigantic figure, squeezing along her pudgy stomach and over the erect caps of her nipples, which were now so large that they lifted the pathetic cups of her cow print bikini upward, exposing the candy-pink areolas beneath. She continued sliding her silky digits up and over each of her immense, milk-filled teats, rising slowly upward as she panted deeply from the heightened sensitivity her body was feeling. Looking down, she could see nothing but the vast, jiggly globes of her pendulous titflesh. Each breath she took raised her chest, sending her heaving udders into a wobble, her perky nipples standing hard and following suit. Her journey ended with her cowprint-gloved hands clutching either side of her face. "Mmmn... No matter how many times I do it, it never stops feeling..."

Fluttershy chewed her lip, lost for words. "Moo~"

Maybe she shouldn’t have done that! Mooing was all well and good when she didn’t have the magical collar fixed around her neck, but it was in fact the command word that made that delightful ornament work its magic.

Each little lowing, pleasured cow-sound a pony made transformed their amazing bodies further. A little string of "Moo, moo, moo!" was often all it could take to make a pony rocket up two or three cup sizes, heavy-hanging breast meat bursting out in inches and not stopping until it was straining at their clothes, struggling to burst out and into their hands! Colorful, jiggling breast-flesh would eagerly hijack shirts that had previously covered tummies, pulling them up and up until they were little more than tank-tops, quivering underboob wobbling in plain sight. Mountainous titties would rush up to fill dress cleavage as if saying a pervy hello to any nearby hands or suction cups, inviting them to come closer!

The problem was compounded by Fluttershy's bikini top already undergoing quite a bit of pressure! The garment that would have wrapped around the entire circumference of her hips once upon a time was now being strained by her bust, and a sudden growth spurt pushed the overworked garment well past its limits. The dainty bikini was a national hero, sacrificing its final moments in the futile effort of keeping those titties pinned to her chest. Each cup was flung in an opposite direction, sling-shotted away as the tension point between her titties snapped clean in two, and she squeaked as her wobbling mams both sped off in opposite directions, before coming back together in the centre with a thunderclap that made Fluttershy jump!

"Eek!"

She tumbled back onto your couch, one elbow ending up resting on the cushions, her legs up and the dizzied pinkette staring in disbelief at the two flushing funbags on her chest that seemed to define her now, like she was just an accessory that came with those immense, jaw-dropping breasts! Each of her enormous, stiff nipples was swaying gently as they poked up into the air. Fluttershy was so mad! Another top ruined! She wanted to just ball her hands up into fists and slam them down on the couch! Yes, she'd do that! Right away! She'd close her fists and she'd... She'd...

The longer Fluttershy stared at her own breasts, the harder it was to remember what she'd ever been angry about. In the back of her mind, she knew this was the collar's responsibility for making her more placid and bovine-minded, but wasn't that kind of fun in its own way? She could always take it off and go back to being herself later... So why not just enjoy the buzz while it lasted?

Besides, how could she stay mad when she had such huge, soft, squishy... Mmmm! Soon, she'd plucked up the stray strands of hair adorning her breasts and moved them aside, so she could better rub and massage her own mouth-watering chest. They were so big now she had to settle for sinking her fingers into either the topside that ran down to her cow-nozzle, or settle for massaging the outer sides. Almost everything else was out of reach!

"Heehee. Moo. Ooh~ Heehee."

A few more of those cute moos was all it took to have Fluttershy's breasts arrive at a truly magnificent size. It was unreasonable for a single pony to carry around so much flesh on her chest, and yet... Wasn't it befitting of one expected to provide milk to all of Ponyville? Yes, this was fine for her...

So where did she sit now, as those last few soft moos escaped the cowbell-clad milkmaid's mouth? One had to remember that while Fluttershy had big, thick, wide hips, her shoulders were quite narrow. Her body had never been expected to carry such a hefty burden, which was why your good friend Rarity had prepared a breast harness just for this occasion. You helped her into it, and stood back to admire your handiwork!

The harness was shaped much like a bra, with straps running up from each breast and over her shoulders and no traditional cups to speak off. Rather, there were a triangular formation of straps acting as a sling-cup holding up each breast. This caused a large majority of the titmeat, as well as her nipples, to bulge out through the openings on each triangle. The straps of the harness were adjustable to keep up with breast growth and shrinkage. A magical, finely-interlaced webbing propped each breast up, providing some much-needed support! Because they were immense now! Truly the biggest breasts in all of Equestria, having now surpassed even the Princesses in Canterlot Castle themselves!

Each bosom emerged from Floots's chest fresh and ready for male attention. The amount of breast flesh on her torso before the harness dug in and segmented it was more than most girls had for their entire breasts, but Fluttershy was only just getting started! The wild, out-of-control acres of expanse being cupped and supported from there on out might have comprised a third of her body's weight or more, sticking out not just one foot in front of her, but several! It was udder insanity!

Each of her massive cow-tits were slung up, combining with her pregnant tummy to lift her erect nipples several inches higher. Her breast flesh protruded even more ludicrously from her torso now, bulging it outward in lewd, milky peaks. with her oversized nozzles practically begging to have lips latched over them and slurped without end. Those immense nipples thrust out like raised cannons, ready to spray with blasts of milk.

She wouldn’t be able to walk anywhere without it looking like she was thrusting her fat yellow rack outward for everyone to see. Such a display was simply too lewd for such a shy mare, and yet, it filled her with such an exciting feeling! Having her tits slap together on each step made her puffy pussy practically gush in arousal, until her thighs were shiny with it all!

Each of the shiny, lactating orbs wobbled and bobbled all-naturally with the slightest movement, giving you a much needed reminder that they were 100% real and hanging off of your girlfriend. You'd have to stand several feet away from her just to be able to glimpse her lower body: it was all cast in shadow by those mighty flesh-pillows. Oh to rest your head on one and fall asleep.

"This harness is so comfy! Moo!" she giggled. Fluttershy’s statement was immediately followed by a creaking sound and her whining in pain, and you had to rush to her side to adjust those straps until she was content again. Rarity, wherever you are today, you're a genius.

There didn't seem to be much point in covering her dripping nipples up with pasties again, so instead you tied some ribbons around them and, as an afterthought, hung cowbells off of them! Now the gurgling and sloshing of her milk trying to rush out of those overstuffed orbs was accompanied by even more clanging and clanking than before! A helpful extra warning that she was coming around tight corners for Ponyville’s citizens!

An ear-tag on her wiggling cow-ears and the pit-stop for Fluttershy’s breasts was complete!

You hooked a finger in her new and improved harness and led her out of the house. You both headed around to the barn you'd built just for this purpose. A loud humming sound audible from outside let her know the machines were already switched on. As you both ducked under the low entryway, she could confirm that, sure enough, Babs Seed and Pinkie Pie were both already here and hard at work.

The pair were standing on the far side of the barn, resting their elbows on a slightly-above-waist-height steel bar. The bars were also being used to support four of the largest breasts in Ponyville, uncovered and freely lactating into the cups attached to their chests. Said suction cups were full to the brim with creamy milk, both girls delighting in having their over-ripened chests drained into large milk canisters while they mooed and mooed and mooed.

You were used enough to the rhythmic sound of the machine relishing its duty of lightening Pinkie and Babs's separate loads that you could just barely make out the sound of the steel bar creaking under the weight of all that titty-meat. It might just be the hardest worker here, and its day was about to get a lot more rough as Fluttershy approached it. It had to support the weight of three fair milk-maidens today!

Pinkie and Babs both had their legs spread wide apart, holding a simplistic conversation as they worked. It wasn't that they'd lost the ability to reason at a higher level, it was just... difficult. They were concentrating on important stuff right now; you wouldn't wanna debate philosophy or anything while you were thinking about how damn good your titties felt being played with, after all!

You noticed that both girl occasionally dipped their fingers between their huge thunder-thighs. Sometimes the conversation paused as one of them just rolled her eyes back and bucked her hips for half a minute at a time, riding out one of the dozens of orgasms they'd be having today. Judging by the fluid dripping down Pinkie's thighs, she'd had a pussy party of her own right before you two had come in the door!

Fluttershy's eyes sparkled as she turned to you. "Your cow..." She took a deep breath, which made her breasts bounce and her bells clang. "Your cow needs to be milked right away."

She was right. You'd been a negligent dairy farmer so far, it would be irresponsible to not take care of her!

Moments later, she was taking up her spot up between the other two girls. Fluttershy leaned over the padded steel bar, causing it to groan loudly in disapproval. It had never taken this much strain before, as Shy’s pregnancy had caused her breasts to swell greatly in size over time. With the magical cowbell now around her neck, the growth it granted combined with her new fertile body had caused her to reach the largest size she had ever been. The poor yellow mare’s tits were nothing short of mammoth, heaving with milk and aching to be tugged and groped for release. She felt herself leaking constantly from her horny nipples, wetting the ground below with her thick breast milk. She was no doubt filled with more milk than any number of dairy cows in the village! Sweat rolled down Fluttershy’s glistening teats and fat ass, the sheer arousal from the anticipation caused her body to heat up, flushing her face red as she panted deeply.

It was a miracle the steel bar could even support Shy’s new weight on its own, let alone the two other massive breasted mares bending over it as well! You attached her own pair of yellow cups to each thick nipple. The sensation of the cups clamping and slurping over her engorged teats was almost enough to make her cum on the spot! As you watched her settling into the milking process, plaintive mooing joining the other two girls, you realized you might just have the best job in Ponyville. The view from where you were now was certainly agreeable!

Each of the girl's bodies were special in their own way. You'd already had plenty of time to look at Fluttershy today, but Babs and Pinkie had their own assets to bring to the show as well!

Putting aside Fluttershy's breasts, Pinkie cut the biggest profile of the three. Her enormous hairstyle seemed to blow up even bigger with becoming a cow, the frizzy, cherry-red hedge bouncing out in every possible direction! It was just as larger-than-life and expressive as the rest of her! Her normally keen, discerning eyes were dulled a little, but she still had one of those wry smiles on her face like she was coming up with her latest joke even while she was being milked. Of all three girls, it was probably the most fun to watch her orgasm, since her whole body got in on the act, trembling and quivering like there was an earthquake going on outside. If she was standing, her hands would trade curious patterns in the air. If she were on her back, her arms and legs would kick like crazy. Pinkie always had too much energy even on her lowest days, and the female orgasm filled her up to the brim!

Since she'd become a full-time cowgirl for Ponyville, Pinkamena had taken to the idea of grazing cattle like none other, the voracious little bundle of fun turning into a great big fat one! Her belly prodded out some ways in front of her, and that was even before you'd rather generously pinned her hips to the sheets and split some ovums with your sticky white stuff. Now she was eating for two (or three or four or five!) she didn't seem like she was gonna go back to sane eating habits any time soon.

You know what else had gotten bigger with pregnancy? Dat fucking ass. Pinkie had never been a slouch in the booty department. Far from it, actually, she'd thought nothing of lugging around a simply colossal caboose, so big you could balance a drink on it... If she hadn't put her own drink there first! That lewd shelf of pony-flesh had only gotten bigger and bigger after she'd parked the party bus to take on your babies, and it was probably the only thing in town that could match her yellow friend's bust for size. Pinkie’s hips and thighs had thickened up immensely to keep up with all of the juicy, jiggling meat on her chest and ass. Not to mention the sheer size of her huge, taut tummy. Along with her oversized breasts, it protruded outward a ridiculous distance, swollen with both life and no doubt several dozen gulps of her own milk! Goodness knows she couldn’t resist sampling straight from the tap on work days!

One of these days you'd find a way to sandwich your cock between Fluttershy's chest and Pinkie's rear end and then you could probably die with no regrets. Or maybe just keep fucking hot pony gals! Either way~

Cowgirl Babs was the smallest of the three, meaning she was "only" the smallest of three mountains amongst a field of pebbles. But by Celestia if she didn't have the form of a carnal fertility goddess. Babs Seed was more like Babs Plantation after having undergone the full bovine treatment at your hands. She was in full bloom and engorged with ripeness, a female bounty that was yearning to be plucked.

Her face was still the same, that familiar mop of tousled red hair and sharp green eyes that had in recent years become one of your favourite places to rest your cock... Sure she had big floppy cow ears and horns now, but she was still a beautiful young lady. Below the neck was where most of the engorging had taken place, giving Babs an opulent figure most boys could only dream of, a slave-girl body that promised hours of fun for stiff dicks.

Narrow, tight shoulders, a reminder that she'd once weighed nearly half as much as she did now? Check!

Collar with cowbell around her neck, clearly reading "MILK ME"? Check~

Gravity-defying mega-bust, each plump orb so large that they not only met in the middle and formed an all-natural cleavage, but also thrust voluminously out to either side? Oh, you bet she had those... They were just about her finest, most wonderful asset!

Due to Babs not being a cow for as long as the other mares had been, she hadn’t yet reached the same level of milk production as they were capable of. She didn’t need to be milked for as overly long as Pinkie did, and with Fluttershy’s new absolutely heaving milk-factories, she’d probably never be able to fully empty herself again.

You tugged the cups off Babs’ erect nipples with a wet pop, sending them wobbling cutely. She moaned from the sudden suction on her nipples. Having them played with was one of her most favorite things about being a cowgirl!

Strangely enough, despite being milked for the same amount of time as usual, Babs was nowhere near empty, still extremely swollen and dripping with milk. You could swear they’d grown bigger since last week.

When she turned to face you dead-on, Babs's muscular arms weren't even visible behind her breasts. Her cow print glove-clad forearms couldn't even point straight down, there just wasn't any room!

Her saucer-sized, extra-rosy nipples were both leaking creamy mare milk down the swells of her underbust. They pointed directly at you as she waited expectantly for you to cover her up.

You readied her favorite accessories for her costume outside of the collar itself and placed them over her nipples, tucking both teats under heart-shaped pasties far too small for the job. Goodness yes! Even now, both pasties had little rivulets of milk leaking from under the bottom as the moo-cow's natural urges to continue to get milked had her nipples struggling to break free of the stretchy, sticky prisons they were locked away under. You could just about hear her boobies working to peel 'em off already and let them come bouncing out to play in the sunshine!

And last but not least, those hips. What hips they were! They formed a solid wall of flesh that had expanded her flanks considerably to either side and far out the back, bulging with fertility and locked away in a high-leg cowprint thong that left nothing to the imagination about her womanly contours. The gaze of yourself and others around Ponyville had unrestricted access to her backside, thighs and calves, not to mention the cock-craving spot nestled at the very centre of her barely-there thigh gap. It beckoned you to imagine how luscious she'd look with her thighs apart, or her ankles behind her neck... Mooing to have a cock shoveled deep into her and rampaging inside her oh-so-ready body.

The whole ensemble of her devilish lower form was capped by a daintily swishing tail that flicked back and forth whenever she was aroused. So, that meant constantly! You were used to seeing that cute floppy tail swish back and forth when she pouted at you, unable to believe you'd denied her sex for another whole day!

Why even torture yourself and her by denying her sex? There was nothing Babs wanted in the whole world more than to just plant her gigantic cow-butt on the bed, look up at you with adoring eyes and peel those plump lower-lips apart. She would accept your dick deep inside her warm, so-eager slit in a heartbeat, so why not just go ahead and drill her until the bed-legs broke? It would be such fun!

And it wasn't like she was underage anymore... As Babs was so eager to remind you, often while planting your face directly into her breasts, she was a grown-up now. A real bonafide adult lady who could get pregnant to whoever she wanted... Even if there was only one male in the entire world she'd possibly ever consider for the task of tearing into her eggs like they were a wrapped up Hearth’s Warming Eve present waiting under the tree! She just wanted to fuck you so bad, so... Why not go right in and knock her up?

Why not indeed? You and Babs both knew it would be the end of her modest frame, perhaps even for good. She'd develop a real set of swinging, bra-busting titties rivalling the other two for weight and milkiness. Her body's supersex-growth would go completely into overdrive once maternal instincts kicked in and then there'd be no going back. She'd become a hardcore incubator and carer for young, excess litres of milk flooding her chest to the brim as she got super-duper serious about nourishing the young you'd pack into her highly unprotected womb!

The proof was right there in the other two girls. Pinkie and Fluttershy had their vulnerable eggs pricked with your virile semen months ago, and since then their love for their unborn foals had manifested in ravenous appetites, the weight-gain of every meal had seemingly bypassed their stomachs and shot like an arrow into their chests, not even thinking to stop anywhere that wasn't going to be working hard producing more delicious milk! They were both maternal tit-goddesses now!

It was as though their desire to feed their future babies had manifested with a vengeance, even if at the same time a certain silly, naughty, perverted somebody was guzzling more than his fair share of the creamy mama-milk made for the babies.

Honestly, you could afford to be a little greedy, when you considered your three super-loving, doting girlfriends had nothing short of industrial-grade milk factories mounted on their chests! You couldn't have milked them to the point where there wouldn't be enough left for the babies if you'd tried. At this point, Babs, Fluttershy and Pinkie were producing enough between the three of them that all of Ponyville could have switched over to breastfeeding from them and nobody would have gone the slightest bit hungry.

In short, Babs certainly had room to grow. She was still miles bigger and curvier than your typical Ponyville mare, not to mention the absolute perfect snuggle buddy, with breasts "only" twice as big as her head and "only" capable of dispensing enough enough milk on the hour to fill up five or six of your standard milk jugs. In fact, she could even sometimes fit her ass through the town's doorways when she was all puffed up from maxed-out bovinity, while Fluttershy had to grunt and strain and Pinkie was pretty much limited to using barn doors nowadays!

So why not knock her up? Well, that was a good question, wasn't it? Ever since she'd hit that golden 18, she'd been trying! At first she'd had no trouble putting her impressive musculature to work wrestling you under her and getting you to fire off bareback deep inside, but as all that extra cow flesh got added to her herculean frame, she gradually plumped up and appeared not much more than toned. It became easier to just sort of... lay on her back and moo until a broad, fat penis-head was rubbing on her lips. Then she could just, you know, open her mouth and suck it into that hot little mouth of hers. It got hard to keep thinking about stuff when you were sucking a meaty cock... Better to just lay back and drink semen than work on her figure!

Every time the collar came off and she regained her mental focus, she'd immediately go back to plotting, but the second she tried to pin you down and force your child into her strong, wide hips, she'd lose her concentration and you'd be able to pop that collar back around her neck.

Well, today was her lucky day. After discussing it with Pinkie and Fluttershy, the three of you had agreed that once the girls had produced enough milk for all of Ponyville's mares and stallions for another month, there wasn't any need to hold back anymore. Babs Seed was going to get her breeding cherry popped wide open! After today's work, you’d be digging into those incredibly soft, meaty curves with all your strength. You’d feast on Babs Seed’s body! It was finally time to get started on a freckled family of her own. Today, her cries of "It's not fair... I turned 18 last month!" were finally going to end!

---

Babs, Fluttershy and Pinkie were bent over the steel bar, breasts stuck out the window, while their rumps and tails were raised towards you. At first Fluttershy showed some hesitation about touching her greedy pussy as much as the other two, but after the pumps working on her breasts had been going for a few minutes, she was digging down there just for some much-needed relief! A little after that her orgasmic moans joined theirs, all three cows howling together.

You walked around to the outside of the barn, opening the gate to a small fenced area where the customers would stand while ordering. The first thing customers saw when they approached was those three smiling faces, parked atop signs listing Small (what a misnomer!), Medium and Large breasts, all hanging low and swaying. Pinkie’s butt was even big enough you could see it from outside! These lovely cows dripped sweat down their flesh, milk from their nipples and practically begged to get stuffed with cock in their mouths!

You made the necessary arrangements to draw in all those happy, spending customers in with a tantalizing display of the produce! You moved a big ol’ 10 gallon steel jug around to the front of the barn. It was identical to the ones the girls were filling now, but while those would soon be sloshing nicely with the mouth-wateringly delicious full-cream milk of your busty moo-cows, this was just the empty display model.

You set it up alongside a sign reading, “Full-cream jug = 50 bits (Trade in your empty!). A good, hard squeeze = 2 bits (Bring a bottle!)”. It was half what you’d be paying in Canterlot, although perhaps the delivery method was a bit unusual! Regardless, you and your girlfriends had to eat too, and that wasn’t even getting into the matter of the unborn foals making their bellies extra-big and round!

Customers would be appearing any moment now, ready to make their milk purchases from both bottle and straight from the tap! For now, you tugged the cups of the milking machine off from both Pinkie and Shy with loud, wet pops.

Pinkie cheerfully sighed and Shy let out a whimpering moan as her swollen milk tanks slapped together from the sheer force of her swaying. Fluttershy was nowhere near done being milked, and the pressure still inside each of her massive teats was enough to drive her wild! If only someone would service the poor mare~

With all that taken care of, the job was done and everything was ready for your beloved customers. And here came the very first one!

Few ponies liked a tall glass of milk more than Ponyville’s resident fashionista, the one and only Rarity, even moreso now that she was trying to very slowly wean Sweetie Belle off of her ample chest. It would be good to get her on someone else’s milk for a change!

You could hardly blame her for getting her little sister addicted to suckling on her chest, after the big lactation craze had swept Ponyville... And she would have been content to let the little Unicorn suckle for hours if it didn’t chew through ever so much of her day. She had work to do, after all!

So, here she was, slightly ruffled from having her sore nipples rubbing against the inside of her long, flowing white gown... The goddess of design looked happy just to be out of the house and strolling around without her naughty little sister trying to affix herself to her flesh.

Rarity looked as stunning as ever in a long formal gown that cupped her body tightly all the way down to the hem inches above her six-inch high-heeled strappy sandals. From there, the wiring poofed it out into a most perfectly elegant and ladylike flower shape, her latest and most simply marvelous fashion statement.

But wasn't it hampered a little bit by how impossibly close the rest of the dress fit her flesh at every angle? It gripped her thighs and calves almost as tightly as pantyhose and her overabundant chest looked like it was more than ready to spill out at a moment's notice. Even still, a dress like this wouldn’t even begin to fit even the smallest of these three cows bent over just ahead.

She stopped at the line-up of breasts at the front of the barn, clicked her heels on the stone path, turned her head and then...

Beam~

She flashed the trio of cowgirls the most brilliant smile they'd ever seen. Her bright smile glimmered with unmistakable amusement. Rarity tilted herself forward, showing off the ridiculous amount of jewelry she'd weighed herself down with today, including a pair of earrings encrusted with gemstones, a pearl necklace that looped right over her rack and partially disappeared down her cleavage, some gold bangles, anklets, rings...

And the whole ensemble was topped off with an extra wide-brimmed hat big enough that it would've taken at least one whole Fluttershy-breast to fill it up.

She was clutching a basket stuffed to the brim with empty milk bottles and was clearly planning on making a purchase from you... But who could say just how thirsty this perverted mare was feeling?

You stumbled away back inside the barn and soon popped up behind your trio of diligent cows, leaning on their backs as they smiled with doe eyes up at Rarity.

"Good morning, Miss Rarity!" you chimed in your most professional voice, quickly settling your official milkman cap on your head. You put both elbows on Pinkie's butt, letting them sink into the mass of cushiony flesh and put your chin on your hands. "What can we get you today?"

She touched a fingertip to her lips as she surveyed the row of cows. Babs, eyes closed and lost in her fantasies, Fluttershy with her downcast eyes and burning blush... And Pinkie bouncing on the spot, rolling her big boobies back and forth on the windowsill, unable to holster her holstein excitement!

“Why, that is a good question, isn’t it?” she said, letting out a tinkling laugh to tease your ears. “You have such a fine selection of milk-cows as ever, dear, mmhmhm!”

Rarity approached the line of waiting cowgirls with a faint smile on her lips. The presentation of beautiful faces and big, jiggling breasts looked fantastical and unreal from a distance, and walking right up to them, until they they were within arm's reach didn't make their quivering ballast any easier to accept. Just a single one of these fillies would have set records for bust size all across Equestria... Being confronted by all three was enough to reduce some to drooling, horny wrecks.

She was a sophisticated lady, however, and maintained her cool. Rarity strolled up and down the line of bosoms, hemming and hawing, before finally approaching Babs Seed. "Yes, these are... Simply spectacular, especially for such a young filly! Why, I do remember when you barely came up to my waist, hohoho. Mm, and yet here we are, you with your big, cheeky grown-up breasts on display and me dry as a bone."

Rarity's tongue prodded out between her lips and luridly slipped across her lips as she looked down at Babs. Beside her, Fluttershy was watching timidly and Pinkie was mooing brainlessly, clanging her bell and watching her sloshing bust expand. "Yes! So very dry. Would you like to fill my belly up, darling?" asked Rarity with a giggle.

She glanced towards you, raising both of her hands to the trembling tomboy's earth-quaking melons. "May I, sir? I'd like to, ahh, sample the goods a little more directly than most. If you don't mind, that is!”

You didn't see the problem. A trickle of sweat beaded on Babs's forehead as she gripped the windowsill more firmly and deposited her bust into Rarity's hands with a loud pair of slaps. She instantly gasped at the overwhelming sensation, eyes rolling from just the slightest pressure of Rarity's fingertips.

Babs tried to pull herself back and keep her sanity and dignity intact, but she couldn't! The inquisitive, perverted fashionista had grasped her firmly, keeping her palms centred on Babs Seed's pasties while her fingertips touched the exposed flesh of her boobs. Milk began to trickle down onto Rarity's wrists and run down her arms.

"They're simply amazing!" said Rarity, working her hands around Babs's chest in slow circles, rubbing her body. While the captive cow began to whimper quietly from the glory of being touched, Rarity moved each palm to the outside of the young adult's freckled breasts, giving them little slaps along the way that made them wobble. Once she was there, she pushed those tits together until her pasties met in the centre... And then eased her "grip" to a gentle "cup" that let them sink back down to their natural shapes. Rarity sighed, lost in the pleasure of such a large pair of breasts.

"A truly colossal pair of tits~!" she praised. Rarity turned her hands upwards and put them under Babs Seed's breasts, supporting them with her baby-smooth hands. It was so comfy for the tomboy and she relaxed, feeling warm and safe... Perhaps a mistake given she was in the hands of a master seductress!

"Might we do away with these?" asked the feisty Unicorn, nodding towards Babs Seed's pasties. You were beginning to wonder if she was being a bit too forceful, but she'd already begun to tug them off before you had time to respond! She gripped the bottom of each cowprint heart shape and tugged upwards, taking breasts that had to sit heavily on the girl's ribs for her to be comfortable and plucking them right up! Babs cried out as her nipples were drawn up and up and up, each tugged in opposite directions, and all that seemingly endless fatty adipose tissue wobbling between her chest and her nipples, swaying with all that undeniable weight.

"Oh my! They're so sticky!" gasped Rarity. Her tongue was poking out the corner of her mouth. She narrowed her eyes in concentration. Ponyville’s number one classy lady turned her hands upwards, planting her knuckles directly into Babs's breasts. She turned her wrists slightly, pulling Babs’s breasts along. A loud peeling sound announced to everyone that they were finally coming off.

Babs was a mess! The poor cow-pony was moaning and mewling, the fingers of both hands laced around the iron bar supporting her body and her tongue hanging freely out of her mouth. She was unable to stop herself from openly drooling, flecks of the stuff spattering onto Rarity's forearms as the perverted unicorn got hard at work on unmasking those big titty-nozzles the milkmaid had foolishly thought to keep hidden from her!

Rarity wanted to see her junior's bare titties so bad it hurt! She wanted to perv to her heart's content on the sweater puppies of a girl almost ten years younger!

Babs Seed's overdeveloped nipples finally wobbled into the sunlight as the pasties pulled free with a loud peel..Two jets of milk shot suddenly from Babs's bust as she let out the loudest "Mooooo!" she’d ever let burst from her throat, echoing across all of Ponyville and swelling her up another whole cup size to struggle under the weight of! The feelings of vulnerability alone were enough to leave Babs dizzy with arousal.

Babs's cries, and the tension in her body, matched the flow of milk shooting out of her breasts. At first she orgasmed, letting out a desperate cry as those milk-cannons fired at full force, then as the flow eased off to just some steady dripping, she collapsed on the bar and panted heavily, trying to stand on shaking legs.

"Oohn... Oohn... Mooooo~"

Rarity could barely stifle her appreciative squeal. She'd known there would have been some chest development from the newest bovine recruit for your barn, but this was far beyond what she could have reasonably hoped for!

Babs's areola had gone from their previous state of a pair of little pink molehills into truly majestic peaks. Any potential titty-gropers, especially those with small and dainty hands, wouldn't have been able to encircle their pinkness with their closed thumb and forefinger. Teacups wouldn't have been able to cover the large pink circles entirely at this point!

They were each topped by a thimble-sized nipple that was just sunken enough to suggest a few firm sucks could tug it all the way out.

It was impossible not to stare. A single waggle of her chest and the sight of those perfect nipples would reduce just about any grown man or woman to a gibbering wreck, until they just wanted to put their head on her lap and regress to infantile suckling. Even the most reasonable pony's higher brain functions could shut down when faced with those nipples.

Rarity smiled a secret little smile. She was looking very pleased with herself despite the front of her dress becoming a dripping, soiled mess thanks to Babs’ milkgasm. "Ohoho, I didn't know today was Free Sample Day. I would have bought more bottles!"

The topsides of her chest were painted white, and she dipped a gloved fingertip into the accumulated fatty fluid and sucked it right off. Immediately, both hands shot to her cheeks and her eyes sparkled, a big smile on her lips! "It's marvelous! Simply amazing!"

Then she dove into Babs's chest, plucking a breast in either hand. She gripped the underside of her body, where the lighter flesh turned the darker pink of her areola, and began pinching her breasts again, moving them in lazy circles. Every few movements she'd stop and give them a few squeezes, making Babs hose her down all over again. She seemed to be having the time of her life playing with the young girl's boobies!

You finally interrupted her little play session to ask her if she was going to make a purchase, to which she responded with a greedy grin. "After that display, I think I wouldn't be able to sleep tonight without having a bottle of this girl's deliciousness waiting for me in the fridge in the morning!"

Rarity’s horn sparkled and two empty bottles lifted from her basket, moving to float in the air on either side of her. They shot forwards, pinning Babs's ginormo-jugs to her front, then applied juuust enough calculated magical pressure to make her nipples gush, shooting milk in three or four different directions at once.

Most of it began to glug away into those bottles, but the young pony was making a mess of herself as well! Pinkie and Fluttershy watched jealously as Babs made the first sale of the day, gripping the bar, eyes closed and moaning as she shot directly into Rarity's bottles.

"That would be four bits, yes?" asked Rarity with a playful smile, dropping the quartet of golden coins into your hands. Babs looked relieved, and yet proud of herself at the same time. "You'd... You'd better think of me while you're drinking it," she said.

Rarity took the two bottles, giving them a joyful little clink together, before putting them back in her basket. "Oh, I absolutely will, darling!"

Rarity was just about to take her leave of the scene, no doubt to rush home and enjoy herself a Babs-flavoured cup of tea, when she took notice of Fluttershy’s new harness being filled to the brim with the largest breasts she’d ever laid eyes on. Rarity quickly admired her handiwork, giving you a coy wink as she ran her fingers over one of the titanic butter-coloured udders.

“I can see you certainly got good use out of this, darling. And she’s not even fully pregnant!” she said with a grin. “Maybe I should have gone a step further with the adjustments!”

Shy whimpered from the overwhelming pressure and pleasure her breasts received from even the lightest stroking of Rarity’s gloved hand. She was so full, her body so fertile after being so thoroughly cowed that she couldn't help herself! Fluttershy cried out in truly mindless pleasure. She looked up at her friend through hooded eyes, smiling. Her tongue was hanging limply from her mouth.

Had their dynamic really changed this much? It seemed like it was only yesterday they were relaxing in Ponyville Day Spa together, and now here she was, tits so big they'd touch the ground if she bent over, and providing milk for lovely Rarity to round out her figure with.

"Rarity..." said Fluttershy, moving her head towards Rarity's hands. She pressed her muzzle against Rarity's fingers, taking comfort in the touch of her friend. Fluttershy gazed up at her friend and giggled. "I'm a complete cow nooow~ Heehee!"

Rarity couldn't stop herself from squealing! She ran her hand over and through Fluttershy's hair, stopping to massage one of those big pointy horns she'd grown. "You certainly are! And you look positively majestic, darling~ I've never seen such a fine beast!"

Fluttershy closed her eyes and leaned into the pets. Being coddled like this felt better than she cared to admit. She reminded herself she liked it because it was Rarity and she wouldn't just fold her ears back and groan like a barnyard animal if just anypony did this. Well, probably not, anyway!

"Do you have a little moo-sie for Aunty Rarity? I'm sure you do it all the time behind closed doors with your gentleman friend over there, don't you?" she teased, cupping Fluttershy's face with both hands. "Don't yooouuu?"

Tilting her friend's chin so they were staring into each other's eyes made her lean forward, letting those big bell-shaped udders sway, slapping against the barn's wooden wall.

Fluttershy couldn't help but wonder if her body, and her brain, could stand any more mooing today. She felt like she could barely keep up a conversation with her friend on a subject that wasn't about dicks, but one more little Moo might be all it took. As soon as the syllable left her mouth, her titties would expand another cup size, her animal-brain would grow a little more dumb and she might just start mewling for a strong male penis right here and now! She chewed her lip as she looked up at her best friend ever... And finally decided it was worth the risk.

"Mo - ahhh! - Ooooo~" Her eyelids drooped a little. Her smile became wider. The little nub of Fluttershy's pink tongue escaped her flushed lips, waggling at thin air. The lights behind her eyes went out as she scraped her hooves a little further apart on the stone floor, spreading her creamy thighs wider. She raised and presented her enormous rear a little more without even realizing she was doing it. "Moooo..."

Fluttershy could barely contain herself. Her breasts were still so full, and yet it felt so good to grow this large! Her bovine thoughts clouded her mind intensely as she became more and more aroused.

The wooden wall creaked ominously as her teats grew closer and closer to the ground, bouncing off her calf-swollen middle with every expanding surge. More inches of space were vanishing between it and her body, eaten up by the curves of a dairy queen who had plenty of sloshing, milk-filled sustenance to give. She might just lose control at this point and completely subside to her collar's magic.

As much as you'd love to have seen her moo herself silly, it might be time to step in. You laid a hand on Fluttershy's plump behind, rubbing it gently. She responded, but not with words. No, that ship had sailed. The pony was having a hard time verbalizing her simple thoughts, but in the meantime she could swish her tail, moan and, most of all, thrust her butt and pussy back at your fingers with all the need of a bovine in heat! Two of your fingers popped right up the tight curve of her butthole and she groaned appreciatively, continuing to smile up at Rarity.

"Mind giving me a hand, Rarity? She needs to, mm, ease off the tension a little bit." you asked, which earned you a coy smile and a batting of those long eyelashes.

"Well, I suppose I must! Even the most unseemly hormone-blinded cattle is everyone’s concern, now isn’t she~?”

Fluttershy shifted an arm under her impossibly large bust, helping to prop it up just a little. A simple lean forwards was all it took for those wonderful udders to fully conceal both arms from view. It also gave Rarity a view straight down acres of exposed canyon-like cleavage. "R-Rarity!"

Rarity was smitten. While Fluttershy stood inside the barn, she was flopping out a big, fun pair of bouncing tits to squeeze and molest. She seized both of Fluttershy's big heavy milkers and drew the pinkette a little closer to her.

Fluttershy raised her free hand to her mouth, attempting to stifle an adorable little groan as her friend's fingers sunk deep into that oh-so-soft breast, the gigantic mammary rippling away under her touch. Her skin started to visibly flush, betraying their incredible sensitivity. "O-oh my, not so hard!"

Rarity was literally drooling over her friend's chest, little droplets landing on pale flesh as she got her hands underneath them. They were so hefty they made little plap noises with each bounce. "Ahhnn, boobies...~"

Fluttershy bit her lip from behind the safe cover of her hand. A sharp gasp still managed to escape her lips as those wonderfully massive mounds were hefted, revealing the solid weight of their all natural beauty! She brought her own hand a little further forward to try and help support them, so they didn't swing quite as much.

"Mmmn, Fluttershy, how you've grown... To think my darling "little" friend would become so big one day... And so natural!" She slid one hand along Fluttershy's breast, rubbing her palm across her puffy nipple. She pinched what she could of the pink nub, tugging it up just hard enough to lift her whole breast. She released it, letting her melon slap back against the barn wall with a loud plop. "How are these so big and soft and perfect... Mm, they're absolutely insisting I play with them!"

Fluttershy let out a lurid, slutty, eye-slitted moan as her breasts met the surface. After calming herself, she looked up into Rarity’s eyes and giggled prettily, like she’d done something naughty.The pink-haired cowgirl happily tossed her long mane , letting her fingers dig into the window frame as she acted out her part as a busty plaything!

Shy felt your strong penis nosing against her aching pussy and instantly lost to her desire for it, arching her back and shaking her fat flanks. The buxom bovine thought she'd be content just having her breasts played with forever, but a stirring in her taut, baby-filled middle reminded her of an even greater need. She needed to have the father of her calves inside her once more, stirring her up inside in a way that only you were able to do. Fluttershy looked back at you with sensual, hooded eyes. "Can you please... Umm... R-Ram it in me~ I want breeding sex, so... Umm!" the cow pleaded, continuing to bounce her colossal booty from side to side.

You walked your fingers playfully along her back, before reaching down to cup her large, rounded tummy.

"Are you sure it's safe...? You're sooo incredibly laden with sooo many calves now, if I stick it in too deep I might just go right ahead and bump them! Mmm!" You gave both her bloated stomach and ass a gentle grope as you thought aloud to yourself.

"You're so big you look like you're just days away from birth, but I guess you still have so much time left to go." You slapped her belly with the flat of your palm, before changing to a gentle, insistent tummy-rubbing that only heightened her feelings of submission. It rippled at your touch, her children kicking and squirming within. You never failed to get your babies to move inside of her. She was starting to think that she might be having all girls, and that they would grow up to be just as lewd, milky, and needy as her.

You continued to give her belly-rubs like she was a favoured pet. And in her current state of mind, she was. The Fluttershy before you right now would continue to be a breeding animal until she removed that pervy collar she was wearing.

"If you want it, show me where the cock goes, alright? Spread it wide open and ask in the way I taught you." Your fingers were dancing along the head of your stiff, dripping penis. It was so hard, and she looked so good, it was taking a monumental effort for you to not just immediately stick it in!

Fluttershy flushed red. The smile of a submissive girl willfully under her master's control began to spread across her face. The embarrassment from being forced to be naughty in front of Rarity was almost too much for the poor girl to bear. "Oh golly... Mmm."

A crowd of ponies was forming behind Rarity, all ready to purchase their milk. Some moved to be serviced by the other two cows currently on shift, while others... Well, they did quite a bit of lingering, to be sure! It wasn’t every day you got to see Fluttershy at her absolute lewdest.

"C-Can you please, sir, maybe just give this needy cow a few inches of your penis, ahhn... I'm sure I just need one or two, but if you want to push more in, I won't mind..." The pink haired bovine was writhing with desire under your teasing.

" And if you want to slap my ass or, ahh, pull my hair... Like if that would make it more fun for you and m-more eager to... Ooooh fuuuuck... More eager to rail your little cow, then just go ahead and help yourself! Do whatever you want!" She had to heft her immense belly, but she slowly turned her body, and presented her thick, jiggling rear to you. Naturally, even this careful movement had been enough to jostle drops of milk from those two gargantuan milk jugs she called a chest. It was clear just how much nature intended the dairy cow to be with child, for her already wide flanks had only further spread out in preparation for her future childbirth.

Fluttershy staggered her legs, and reached as far back as she could to try and spread her drooling sex for your long-awaited entry. But there was just far too much rear and thigh, and her velvety lips were put beyond her own reach.

"See? I... I can't reach! So please put it inside me..."

She looked more like she was preparing to give birth then get a fat cock stowed away inside her body, like her babies might start sliding out right then and there. You moved forwards, lining your hips up with hers and...

There was the most obscenely long, loud, slurching noise as inch after inch of hot cock slid into pony-bovine pussy. The gravid, yellow mare let out an overjoyed moan as her pussy took in every inch you gave it. You returned to one of your favourite hot little love dens, sliding all the way to the base. You began to energetically thrust in and out of her, sending her lewd, breeding body jiggling. Customers were crowding around, wanting to purchase milk, but Pinkie and Babs would have to take care of them until you were done with this majestic little creature!

You held her plump ass with both hands, giving it a nice, firm slap as you took her to very familiar heights of pleasure. You gave Fluttershy the naughty bareback dick she was always lusting for.

"Mm, so how about it, Fluttershy? You want another set of calves once you've eased these ones out? And another after that? We can keep you pregnant for as long as you think you can handle it!"

"Ahhhhn, yes! Do whatever you want to me! I... mmmh! I always want to be round with calves! I make more milk and your cock always feels the best! Please! Make... mmm... mooore babies in me!"

The sweaty, fuck-drunk barnyard animal looked up at the perfectly coiffed, cool and composed Rarity. Despite being worlds apart at that moment, they both had the same joyful look in their eyes, each girl perfectly content with the life Floots had chosen. Her tongue all the way out of her mouth as she panted like a tuckered-out Pomeranian. Her teary eyes were bleary and unfocused.

Fluttershy squeaked out, "I'm just a cow! I'm his cow! I'm your cow! I'm everyone's cow!" Her cute-as-a-button cow-tail was swishing like mad as she greedily accepted her fate with the sort of relish normally reserved for a double-decker hayburger.

Rarity's eyes lit up with delight. With Fluttershy's mouthwatering, heavy tits hanging out in front of the unicorn, her breast-obsessed assailant had free reign to do whatever she wanted to them. She wasted no time grabbing the pervy moo-cow's perfect curves, fingers sinking greedily into her breasts.

Fluttershy's previous warning of how sensitive they were went completely unheeded as Rarity massaged them with nimble hands. She paused to suck an entire nipple into her mouth. "That was positively sinful, darling! I guess now we know what happens when you attach a pair of perversion-stuffed titties to the shyest girl in Ponyville and make them ooze gallons of cream for everyone! Mmh! You're going to be a... A perinatal pervert!"

Fluttershy's blush grew even redder. "A-ah, my chest! Rarity, time you say something lewd about my boobies, they um... They get all tingly, so if you could..."

"Ohoho, darling, please! I haven't begun to say lewd things! I haven't said how these breasts will soon be nourishing your children. Or how they'll only grow bigger and fatter from this ridiculously chesty size as they inflate with milk! And I certainly haven't said that you'll become even more of a lewd-bodied cow as you get fat and pregnant from his seed!"

Fluttershy could only cry out as those beach-ball mammaries of hers were at Rarity's mercy! Her hands flailed, finally gripping the window frame around her. It was hard to remain standing properly, what with the way she was flushing, eyes fluttering closed and thighs squeezing together as her pussy was pounded into again and again. She sucked in deep breaths between gasps of pleasure.

Rarity released her nipple from her glossy purple lips with a wet pop. There was a brief moment of relief from the titsy cow as she popped free, only for an eyelid-squeezing moan to follow as the tongue lashing started. Rarity had all the confirmation she needed that her friend was the kind of perverted cow who could grow much larger tits. "I can't wait to see it!"

"Ah! T-they might... I might... get too big, though!"

"Breasts can never get too big," Rarity whispered in her dear, sweet friend's ear. She pinched both nipples at the same time and gave the Pegasus a ravishing kiss she wouldn't soon forget.

Fluttershy gave in, and mooed as you and Rarity used her together. It was all too much for the cuddly bovine, who would be happiest just making gallons upon gallons of milk and serving as breeding stock for the barn's owner.

The large, thick head of your cock pushed deep into her entrance over and over, stretching her to her limit. Your thick, fleshy head was swollen up, and it went into full-siege mode against her cervix. You began to huff in her ear as you got closer and closer to cumming and filling her up. "Of all the cows in my ranch, none of them ever get as fat-breasted as you, or so helplessly eager and submissive to a hard cock! You're a sex addict! A breeding and birthing addict! You'll probably cross your eyes and cum just from the pleasure of having babies!"

"Y-yes! Ahhn, I can't ever be too round with calves, too -ah!- full with milk! Ooh, I want a big family~" Fluttershy confessed, when her tongue wasn't lolling out of her mouth and she wasn't panting like an animal already fucked senseless by your broad cock, she regressed to the baby-crazy breeding cow that she was happy to be. She mooed herself silly!

As you drove your manhood into her again and again, Fluttershy's enormous, taut tummy rippled with the excited squirms of her calves. Her incredible milk tanks bounced atop of it as they bloated larger. Those nurturing breasts were as packed full of warm cream as they could be, and they sprayed droplets of her fresh milk all over the barn's floors, walls and even herself.

When your grip tightened on her twin, pillow-like cheeks, she knew that you were about to deliver a load directly into her drooling sex, just like the one that had made her this way. She clenched her inner walls, milking you tightly inside her while sounding off another long moo as she lost herself to the pleasures of your rough cock. She felt her already impossibly large bust hang lower and lower still, as Rarity continued to bathe what she could reach of her in soft gropes and licks. The poor yellow mare was a horny wreck, completely overwhelmed by the pleasure from both ends. She felt herself getting so close to cumming that she could barely think straight!

That was when she felt her oversized nipples rub along the floor. She let out a gasp of intense pleasure upon having realized she had let herself moo without restraint, and now every thrust of your rock-hard length into her puffy marehole was pushing her forward and grinding her milky nozzles into the ground below. Shy was at her breaking point now, she didn’t care about how big she got, she simply felt too good to care anymore.

"Mmmoooooo!~" Burgeoning breasts gave one last wickedly-loud creak as they went through one last growth spurt that made the ones preceding it look like a splash in a puddle. Her huge titties went on full-auto, hosing down both the crowd, who immediately began trying to catch it in their milk jugs, and the inside roof of the barn. Fluttermilk would be dripping down from the ceiling beams for hours after that little display!

You groaned in her ear, driven to orgasm, your hot and hard cock loudly pumping semen into her baby chamber. The pulses of your semen made a loud gulping sound as you drained your plump nuts into your most-loved Fluttershy.

As ripe with as many calves as she had in her, it might be a little hard to tell she still had a few months to go. Especially when you considered the size of that glossy, gravid sphere hanging from her frame.

Perhaps it was a good thing she wasn't close to delivering. The way you used your manhood on her, she often risked being sent into labor near the end, only to get knocked up again as she nursed the little ones!

A random swing of the orgasming cutie’s breasts caught Rarity, and the poor unicorn yelped as she was slapped, tumbling back onto the grass. She landed with a thud on her hands and knees, dazed and a little worse for wear. “Oooh...”

Rarity cradled her full-to-the-brim milk jug to her chest and grinned. “I guess this is what they call a workplace risk, teehee~”

She crawled on her hands up to the barn window and rose up to take a closer look at Fluttershy. It looked like her titsy friend had suffered a workplace accident as well: she was resting her head on her hands, eyes rolled back and her tongue hanging out. She was drifting away in some milk-filled bovine sex-Heaven and her brain was clearly out to lunch. A steady flow of clear goo dripped from between her trembling thighs, while her breasts continued to ooze milk. She was sweating, drooling and tears were in her eyes. Flutters had been fucked completely silly~

Rarity pinched her cheek, giggling at the brainless display on her pleasured friend's face. "Don’t worry, I won’t press charges. Just as long as you keep looks like this on her face, mmhmhm~"

You picked up a second full milk jug and handed it to Rarity. She took it graciously, turning her head to the side slightly. "What is this, darling?"

"Just my show of thanks for helping Fluttershy! And, mm, if you'd like to have a look on your face like that later, why don't you drop by after work sometime?"

Rarity steamed at your suggestion, her ears sizzling and the female love-trap between her thighs going "Squish~" appreciatively. "W-Well, far be it from a lady to turn down such a kind gentleman's offer... I suppose I could, ahh, work you in. Into my schedule, I mean, hoho~"

You gave her a warm peck on the cheek, then helped Fluttershy get comfortable in the corner. Customers were crowding denser by the moment and it was about time you went and gave Pinkie and Babs some much-needed help with their orders!

Author's Notes:

Working with Spindles and taking his suggestions on the flow/content of the story was a lot of fun! We were able to touch on a lot of themes we're both enthusiastic about, so hopefully that enthusiasm and idolatry of the female body shows through in the writing!

There's a second chapter planned, so please look forward to it~