Tiara woke up a in half-daze, sitting on a warm, comfortable... hay... bed. Her nostrils flared as they took in the scent of hay, old barn wood, and all sorts of other farmyard smells. The Apple family farm, her first instincts told her. Then she realized that, no, she was still in the game. The last thing she'd been doing was swimming in a sea of Silver's cum, and this new locale was undoubtedly another of Silver's fantasies.

Idly, she brushed a speck of dirt off her thigh, then froze as a spark of electric pleasure ran up her spine. She wrapped her hand slowly around the warm, fleshy appendage rising up proudly from her crotch, shivering as it throbbed in her hand. A real, honest to Celestia dick!

And the twin watermelons hanging off her chest! She cupped them both, silently amazed at how big, how hefty her new endowments were. And how good it felt to grope them. She sighed in pleasure as one hand drooped down to her new cock, while the other continued playing upstairs. They were so... so huge! She always did like them big, and had told Silver Spoon so as often as she could, but these felt almost like-

"Diiiiaaamooooond!"

-like udders.

The door to the stall - she was in a stall, she realized now - swung open. "Well, well, good to see you up and about this early!" Silver grinned widely, her voice thick with an exaggerated country twang. She had returned to her normal proportions - smaller than Tiara in every way. She was wearing a wide-brimmed straw hat, a set of loose-fitting denim overalls, and (as far as Tiara could tell) nothing else. "That's good! 's time." She hefted a bundle of rope and faux-leather strips, tossing it to Tiara. "C'mon, get up, time to put on your harness and move y'all to the milkin' machines!"

"-M-milking machines?-" Diamond sputtered. "You can't be serious, Silver! Acting like I'm some kind of... some kind of cow! How is that hot?" But as her mouth protested, her body obediently waddled its way over to a waiting Silver.

"Ridiculous!" she said as she wiggled herself into the harness, her enormous, udderlike tits jiggling and swaying enticingly as they waited for Master to strap everything on. Now that she thought about it, they did feel awful full with... with cream, she supposed. As did her swollen pink balls, positively sloshing over with seed. "This is why I don't let you take charge more often, Master."

"Hold yerself still," Silver responded in her clearly fake drawl, completely ignoring Tiara's complaints. She fiddled with the thick straps as she wrapped them around the cowpony. They covered Diamond’s whole body - like some kind of bondage gear. Starting from a thick collar around her neck, it plunged down her front, splitting into four straps that looped around and under her breasts, before returning into one that trailed down to split again at her crotch, encircling the base of her cock before looping under the cleft of her hefty balls and into her asscrack like a thong, and then finally coming out up her back all the way to her neck where it terminated by rejoining the collar. Silver grabbed Tiara's hands roughly and held them behind her back, wrapping them tightly with more leather straps atatched to the one that ran up her back. Atatched to the front of the collar was a thick, heavy rope that Silver picked up. "And none 'a your nonsense. I don't wanna hear any complaints. Y'all remember what happened the -last- time I let you skip mornin' milkin' time."

"No!" Diamond gasped, suddenly remembering the last time Master had let her skip morning milking. Oh, she'd felt so full and on edge she'd thought she would burst! She shivered in her restraints, heavy tits wobbling to and fro. "Fine! Whatever, Master. You can be in charge... for now."

Oh, but when this was over, Silver would pay. How dare she try and... try and domesticate her like this! Why, if it wasn't for the promise of that sweet, heavenly milking, and Master's sure, strong hands on her aching, overfull tits, and her throbbing, needy cock she'd be showing Master who was boss already!

Silver hefted the rope, gently but firmly leading Tiara out of her stall. "Now, today we're gonna be tryin' somethin' a little different," she said in her drawl, taking Tiara out of the barn. "See, yer production's been goin' up lately. A lot. Yesterday, you made so much milk that I just couldn't do it by hand without losin' a lotta the product. At five milkin' sessions a day, that's a lotta money we're losin' out on." Tiara noticed that she was being led to a very large metal warehouse, easily twice the size of her barn, that she could swear hadn't been there the day before. "So today I ain't gonna be milkin' you by hand. Instead, we're gonna be tryin' out our brand new milkin' machine."

"A new one?" Diamond thought back briefly to the last milking machine Master had tried her out on: a sad little piece of equipment that could barely drain her faster than she could produce. Was that the sort of thing Silver was going to try again? She snickered, even as she followed obediently at Silver's tug. That was why she'd win this contest of theirs, in the end. She was the big, productive, milky cow, and Master was a loving little farmer who always thought too small.

Though, Diamond had to admit when she saw the new machine, Master wasn't completely clueless. The new machine was a mass of straps, pipes and pumps, leading into dual rows of towering steel vats - one for her milky knockers, and the other for her endlessly productive balls. Each vat was bigger than Diamond's own stable, and the milking barn itself was nearly the size of a city on the inside. Diamond gulped, squirming awkwardly in her harness. Had all this always been so... big?

"Eeeyup. Brand new, state-of-the-art. Just came in yesterday. Accordin' to the brochure, they can take pretty much anythin' you can throw at 'em." Silver had, at some point, slipped a long strand of straw into her mouth, and was chewing and sucking on it idly. "Supposed to be real gentle, too. No risk of hurtin' the cow. Now, come on, girl, it's time to get y'all strapped in for a nice milkin'." Silver led Tiara to one of the vats. In front of it was a long iron bar that extended from one end of the cavernous building to the other, slightly below knee height. At regular intervals along the bar were thick, padded foam covers. "Kneel," Silver ordered.

For a moment, Diamond thought of resisting, but not half a moment later, she remembered how important it was to listen to Master precisely while she was being hooked up. If she didn't listen - or, dare she think it, disobeyed! - during this crucial time, she could be hurt. And she was Master's precious moo-moo. The lifeblood of the whole farm! There was no way she could let herself get injured and disappoint Master for some... petty grudge.

"Hmph!" Diamond grunted, kneeling as told. She would listen for now, especially since everything felt achey and sore - tits full to bursting with milk and balls brimming with rich, gooey cum. She needed the milking, but she vowed to find some way to turn the tables soon enough.

The machine was comfortable at least, filled with suspending straps and padding to make her positioning as easy as possible. Master had clearly spared no expense on this one. She looked at the pumps, the only parts as yet unconnected, then expectantly back at Master. "Well?"

"Good girl," Silver said, lightly tousling Diamond's silky hair. "Now, remember, this bit might feel really good, but I need you to hold yer milk in and try not to cum until all'a the pumps are on. We don't wanna waste anything on premature release. And remember..." She deftly straddled her moo-moo. "...Try not to squirm too much. Makes it a lot less comfy for me~" With that, she sat down on Tiara's immense cow ass, leaning forward until she was parallel to Tiara's torso, her tits, not insignificant (though still barely even a fraction of the size of her moo-moo's), pressed firmly into Tiara's back as her slender arms slowly maneuvered their way around her bulky, feminine form.

She picked up a pair of transparent plastic domes, each just large enough to perfectly contain one of Tiara's big, milky nipples with about an inch and a half of empty space left over for the milk, with a diameter that left about a quarter of an inch of space around her areolas. On top of the domes were long, thick, transparent tubes that rose up and up and up, vanishing into the darkness of the building's impossibly high upper levels, before presumably coming back down to feed the milk into the massive vats. At the base of each dome was soft, slightly sticky padding, designed both for the cow's comfort and to keep the pumps on until the suction was activated. Silver gently placed the cups over Tiara's fat, leaky teats, and then gently but firmly pushed them into her soft, pillowy milksacks. "Remember, girl,” she gently whispered into one of Diamond's ears as she grasped the third pump. “Keep yer milk in 'til I've turned the pumps on."

This pump was much larger than the ones used for her nipples, a good foot of plastic cylinder before it tapered into a dome at the top. Again, the bottom was padded with a black, rubbery soft substance. Enough to envelop her cock down to the medial ring. With her free hand, Silver grasped Diamond's meat at its base, and again, she whispered, "Don't cum yet, girl," before sliding the pump onto her penis. "There we go, girl," she cooed, one hand gently running feminine fingers through Tiara's luxurious mane - the other was still firmly grasping the base of her enormous cock. "That wasn't so bad, now, was it?" Not giving Tiara a chance to respond, her free hand darted to a switch on the side of the vat and flipped it.

And then the machine turned on.

Diamond gasped, wriggling and writhing in her restraints as Master's strong, practiced hands groped at her most sensitive bits. Though Diamond was nearly half again as big as her Master, years of arduous farmwork (and a steady diet of her moo-moo's nutritious milk) had made Silver surprisingly... strong for her size.

Diamond bit her lip, refusing to moan even as the gentle suction of the pump's rubber seal worked its magic on her engorged nipples. Swear to Silver Spoon, she was so pent up right now that even this was nearly enough to get her spilling. Master would certainly be surprised when she found out that her fancy new milking machine was no match for her precious moo-moo. Already the dome over her throbbing cock was filling with cloudy pre, her swelling balls provoked to ever greater excess by Master's teasing touch.

"Hope you didn't spend too much on it, Master," she half-sang as Silver circled over to the switch. Oh, what a surprise it was going to be for her. "I'm only going to break it and make another m-oooh!" Diamond's brain short-circuited as the switch flipped on, the pumps activated, and a rhythmic suck-suck-sucking at her sensitive teats and cock pulled the floodgates wide open.

"You were saying, girl?" Silver couldn't help but smirk, grinding her crotch against Tiara's back. "Just relax. The pumps are on and you can cum all you want now. Here, lemme help y'all with that~" She squeezed the base of Tiara's cock, gently pumping the thick rod of dusky flesh. "Gooooood girl," she purred, bringing her free hand from the switch to one of Diamond's pendulous udders, giving it a gentle rub in small, concentric circles on its side. "Do y’all like that, girl? Are ya’ gonna make lots ‘a high quality milk ‘n cum for Master?"

"Guuuuuh..." A long, lewd, lowing sort of moan escaped from Diamond's lips as the pumps worked their magic. The plastic cylinders filled with gallon upon gallon of heavy cream and gooey cum. And yet, even as the machinery worked at full speed, Diamond's assets seemed not to shrink but to swell. Heavy pink tits, sensing the challenge, filled with more and more milk to replace what was lost. The twin vats before her filled with startling speed as she gushed and gushed, her balls churning with far more cum than a single milking could ever hope to even come close to emptying.

Master's hands were an added delight, a gentle, practiced touch to underscore the relentless sucking sensations of the pumps. It was too much. Too good! Diamond squirmed, bucking against her restraints, trying to escape Master's touch, but if the straps hadn't kept her bound, the toned muscles flexing just beneath Master's shining gray fur could have kept her easily under control.

Everywhere she tried to turn, there was more touching, more milk, more cum, more everything! She tried her best to hang on to the lone scrap of sanity, the desire to beat Master at her own game, but deep down Diamond knew that if it kept on for much longer, this would break her. Then she would be little more than a happy moo-moo endlessly fucking and producing for her Master's pleasure.

"Ah!" She bucked again, the cum vat filling at double speed as the thought filled her head. Oh, but that would be hot...

"I take it y'all're enjoyin' this, then?" Silver grinned, and then her hand darted back to the switch, hovering over it teasingly. "Tell me, how d'y'all feel about takin' our first break here, girl? Give y'all a little rest, chance to calm down a bit before we start the milkin' in earnest?" Her hand inched closer and closer to the switch, before darting slightly away again. "Or maybe we can go on just a li'l longer. See ifn' we can't break y'all a bit~"

"Nnnnnng..." Diamond grunted, summoning up the last of her will. "N-never!" Still, within her luscious pink tits, her swaying, gurgling sack, she could feel oceans of milk and cum brewing. Vast seas of virility and fertility, all of which had to be funneled a gallon at a time into the milking machine. The longer Master left the machine on, the more she'd be subjected to this amazing, mind-blowing torment.

She had to stop and catch her breath, find a way to turn the tables! "B-break, please!" she sputtered. "Break!"

"Break it is!" Silver flicked the switch, turning off the pumps and offering Tiara a temporary break from her torment. She gently ran her fingers through her moo-moo's hair. "Don't want to accidentally break my prize cow, after all~"

Silver rose off of Tiara's back, lifting a leg over the enormous cowpony. "Mnnn, gimme a moment," she stretched, raising her arms above her head and yawning luxuriously. "There, that's better. Got a crick in m' neck there. Here, lemme just get y'all some feed, girl." She turned and pulled on a lever Tiara hadn't noticed earlier. Had it even been there before? Tiara didn't really know for sure, being just a cow. Whatever the case, it caused a large, stainless steel trough filled with her feed, specially formulated by Silver to nourish her precious moo-moo. "You eat up, girl. I'm just gonna grab a drink. Feelin' a mite thirsty."

"Thirsty!" Diamond grumbled, snapping up some feed. "I’m the one who’s been doing all the work." She chewed and swallowed, savoring the taste as it went down. Delicious, delicious feed. The highest quality, with the most nutrition, for maximum productivity. She could feel her udders gurgle appreciatively with every pound of it she downed. "Yes, girls," she murmured. "That's it."

The vats before her were already nearly full, fit to burst if the milking went on any longer. Diamond sniggered. Maybe that was why Master had been feeling thirsty, all of a sudden. She'd have to down an awful lot of the product if she wanted any hope of keeping her milking machine working.

"Better drink up, Master!" she called teasingly as Silver returned with a large silver flagon. "Don't want your brand new machine to overflow before the next round ends!"

"I don't think there's any danger of that, girl," Silver responded absently. She held the flagon underneath a large nozzle set into a small machine in between the two tanks. A complex series of pipes wound out from of the back of the machine, leading to the two almost full tanks. She lifted a lever, and a thick white liquid flowed out. Silver idly held it out, just slightly out of Diamond's range of movement, but close enough that she could smell it. Creamy and musky and rich, topped with a thick, foamy head. She lifted the flagon up, holding it to her own snout and breathing deep the powerfully sexual aroma of the cocktail of cum and milk. "Mmm, y'all've really outdone yourself this time, girl. I might go so far as to declare this the best batch yet. A'course, can't quite say that without givin' it a bit of a taste test~"

Silver threw back the mug, chugging down the rich liquid - though it was so thick and viscous that calling it liquid was hardly accurate. It tasted as overwhelmingly sexual as it smelled, the sweetness and feminine richness of the milk swirling and merging with the musky, slightly bitter virility of the cum. Silver idly grabbed one of her breasts, giving it a gentle squeeze.

It burned on the way down. But it was a good kind of burn. Like a finely aged whiskey.

Silver lowered the flagon, having drained it completely. "Ahhh, yeah. That hits the spot. Gimme just a moment and we'll be ready for round t-" Silver's sentence was interrupted by a loud, angry groaning noise from her stomach. "Ah! There we go."

"Drink up~" Diamond said, watching captivated as Master downed the whole thing. It felt... silly, with her goal to show Master who was really boss, but watching her owner enjoy herself like that was almost a point of pride. She was Master's loving moo-moo, after all, and it was only right that Master should drink her moo-moo's milk to grow big and strong. Not to mention that it was a bit of a turn on, little droplets of the thick, sticky concoction spilling as Silver guzzled it greedily, soaking into her fur, staining her overalls with the products of Diamond's own lusts. The whole sight was nearly enough to make Diamond hard by itself.

But, as Diamond watched, she couldn't help noticing something awful strange. Master had always insisted on wearing overalls just a bit too big for her, and little else besides, but nearly halfway through her drink, her overalls looked almost like they... fit. A rubbery, stretching sound filled the barn as inch by inch, gulp by gulp, Master grew upward and outward. Big, gray-furred tits began to strain against her milk-and-cum-drenched overalls, the outlines of healthy pink nipples peeking up over the dark blue denim. Already, it looked like Master was nearly as big as Diamond herself, and she wasn't even finished.

"H-hey!" Diamond tried to object. When she wanted Master to grow big and strong drinking her milk, she hadn't meant it quite so literally! Then a metallic, creaking sound caught her attention. Diamond's jaw dropped as she looked back to the vats, only half full of milk and cum... if that! But how? Vats didn't just suddenly double in size!

"Mm!" Master smacked her lips loudly, drawing Diamond's attention again. Vats weren't supposed to double in size... but then, neither were Masters. Silver looked almost ten feet tall, her thick, muscular body bulging out of her shredded overalls at every possible seam. "So tasty! Such a good little moo-moo, making such delicious milk for Master~" She sighed. "I think I might have another!"

"Hey!" Diamond shouted, rustling to break free of her restraints. No way was she going to let her little Master get bigger than her! "No fair! I should get a drink, too!"

"Silly moo-moo. Dairy cows don't get to sample their own product. Still, I suppose you have been a very good girl today." She smirked, striding over to the milk dispenser in significantly fewer steps than it had taken to get there. What little was left of her clothing strained against her bulging musculature and enormous frame. Her straw hat, previously oversized, now looked almost comically small on her head. "Tell y'all what. I'll give ya' a lil' free sample. As a reward for makin' so much milk 'n cum for your master."

Silver produced another lever that Tiara hadn't noticed before, giving it a good hard yank. The stainless steel food trough retracted up into the dark ceiling, being immediately replaced by another, identical trough - this one empty of feed. There was a chute, leading to the trough from just underneath the cream dispensing nozzle. "Here ya' go, girl." Silver lifted the lever that had dispensed the cream once more, a small amount of Tiara's fluids flowing its way down to the trough. "Drink up. Y'all've earned it~"

"Yes!" Diamond almost squealed with glee, greedily dipping her muzzle into the trough. Silly Master! Letting her get a trough-full of warm, creamy milk all to herself. And it was delicious, too. Tingly and warm and filling, like liquid sex... which she supposed it was. She'd been bigger than Master to start and this was far more than Master had gotten with her first taste. Master might've had a little growth spurt, but she was about to get fuckin' huge.

And she could already feel it! A pleasurable, blooming feeling in her tits, in her balls. The same rubbery stretching sound that had filled the barn when Master had grown. "Ooh~" Diamond moaned, only barely pausing in slurping up even more. This was going to be big. She was going to get titanic, big enough to break right out of her straps and show Master who was really in charge on this farm.

Except... as the minutes passed Diamond noticed her perspective wasn't inching any higher upwards. Her tits felt heavier, yes, and fuller, but where was the muscle? The size? Even the straps of the milking machine seemed to be stretching easily to accommodate her new proportions. She groaned as she felt her udders brew up a hot batch of fresh milk and her balls churn with fresh cum. By Silver, they felt so full now. But she didn't want to feel full, she wanted to feel huge! What the hay was going on here?

"How's it taste, girl?" Silver shouted jovially, giving Tiara a good firm smack to her backside, sending delicious ripples of motion through her enormous bovine ass with the force. "Now, I believe I was about t' get myself some seconds." She grinned, licking her lips hungrily. "But first," she hefted the flagon. It had, initially, been fairly large, but now, after her growth spurt, it was hardly as impressive. "This is hardly adequate, don't y'all think? One moment." She pulled the lever again, giving Tiara another trough full of cream. "Why don't y'all have another helping while I go get m'self a bigger glass." Without giving the cowpony a chance to respond, she turned and left once more.

"H-hey!" Diamond shouted. But it was pointless to struggle now. Even if she did have the strength to break free of her restraints, her 'assets' had swollen to nearly double size. Deliciously pleasurable and full, but not that easy to move around. "I'll show her..." she grumbled, turning back to the trough. Maybe she simply hadn't drank enough of her output yet. Perhaps her billowing bust and balls were only the first stage of a massive growth spurt for the rest of her! She dug back in greedily, slurping up as much milk and cum as her greedy muzzle could take in. "Have to get big. Have to get huge!"

Silver returned a few minutes later, with an enormous metal barrel hefted over her shoulder. "Here we go. 's a bit big right now, but I'm sure I'll grow into it. How're y'all doin, girl?" Silver didn't stop to allow Tiara to answer, pulling a lever that caused the chute to retract, and placing the barrel under the cream dispenser. "I figure half full for now's good. We'll see where we can go from there."

"Doesn't matter," Diamond said to herself, in between mouthfuls of sticky, gooey cream. "Gotta get bigger. Gotta outgrow Master!" And, in a way, she certainly was outgrowing Master. The straps creaked and strained as bubblegum pink titflesh ballooned outward, the fuzzy sack of her scrotum not far behind. Puddles of dribbling milk and oozing precum spread across the barn's floor as Diamond's assets responded appreciatively to their growth. Still Diamond continued to drink, determined to believe that the rest of her growth would follow suit soon enough. Devoted to the belief that her drinking would grow her into a fucking goddess, bigger and better than Master could ever be... and not an ever more productive moo-moo, filled with even more milk and cum to further fuel Master's own ascension.

"Good girl! Y'all're just about ready for round two to begin!" She hefted the barrel, half full of Tiara's cumulative fluids, before pausing. "In fact..." Her hand darted out to the switch, once again turning on the milking machine. "Let's have a race. See ifn' you can fill these tanks faster'n I can make 'em bigger~"

"Faster than you can… what?" Diamond barely had time to finish the thought before the pumps switched on again and her brain shut down. Her eyes rolled back into her head and a long, throaty moan escaped her as the pumps suckles eagerly at her thrice-sized udders. Tits and balls both had grown fat off the products of her last milking, and now they were paying it back several times over... with still more to come. Diamond's open, lolling mouth easily took in quarts of creamy goo as the fresh production leaked back into her trough. Rubbery, stretching sounds echoed through the barn as Diamond's assets bloated still bigger, the double-sized vats filling at ever greater speeds.

"Oooh, confident, are we?" Silver grinned. "Well, I guess I'd best take this seriously then." She hefted the barrel - absolutely enormous, even relative to her increased size - and brought it to her lips. "Bottoms up!"

The barrel's shape made it difficult, bordering on impossible, to actually get all the liquid into her mouth. Twin streams of white liquid ran down the sides of her face, soaking her fur and what was left of her overalls with milk and cum. Her throat undulated rhythmically as she drank deep, savouring the sweet flavor of Tiara's product.

Her stomach once again made that loud, wet noise, and then came that same rubbery groan as Silver grew. Her overalls, already stressed to the limits, violently exploded as her body surged bigger and bigger. Her pace picked up by the sheer virtue of the barrel's relative size slowly diminishing - the bigger she got, the smaller it was, the faster she drank and grew. The time it took her to go from ten feet to eleven was the time it took her to go from eleven to fifteen, and from fifteen to twenty before she finally finished her barrelful, tossing the empty container aside like an empty soda can. And, all the while, there was a metallic grinding sound as the tanks creaked and groaned their way larger and larger and larger right along with Silver.

"Mmmm, more," she groaned. With one hand firmly massaging one of her enormous grey-furred breasts, she reached down and grabbed the nozzle. "More!" she shouted, violently ripping it off entirely, unleashing a high pressure spray of milk and cum. "MORE!" She silenced herself, shoving her mouth over the spray.

And more she would get. Diamond's orgasm redoubled at the sight of Silver bursting through the last shreds of her overalls, the vats filling with a healthy helping of milk and cum even as they creaked their way to the size of whole city blocks. She moaned, bubbles rising from the trough as she continued gulping down as much as her throat could manage. This was her purpose, she realized. Not to outgrow Master, but to help her grow. To be the fattest, most productive moo-moo there ever was so that Master could grow, and grow, and grow! It was her job to make Master grow big and strong, to make her a goddess over not just the farm, but the world, the galaxy, the universe. The impossibly large vats nearly spilled over with a surge of milk as Diamond imagined the whole planet cradled between Master's perfect tits, caring for all her worshippers just as she cared for her favorite moo-moo.

And her ascension was progressing faster than ever. Silver looked in total ecstasy, one hand buried between her thighs while the other worked to stabilize the high-pressure hose. Dozens of gallons of the delicious, nutritious milk-cum mixture poured down her throat, giving her nearly a belly before her growth kicked in. Lustrous gray fur shone perfectly in the light, her ever-expanding body soaked in the excess of Diamond's output. Silver was outpacing even the vats now, her long, toned legs straddling ever more of the massive container as she rose heavenward. Her eyes were locked thirstily on the vat's nearly overfull brim, counting down the seconds until the hose would no longer be enough to sate her…

Twenty became forty became eighty and beyond. Silver groaned and moaned around the hose, which also grew along with her - though it was only barely managing to keep up. Silver frowned as she passed one hundred feet - she was so big that even its output wasn't quite able to keep up with her raw size. "Well," she cooed, "I can see a way to fix that~" She stood, her body so vast that Tiara was barely the size of one of her toes. The milk tanks reached just below her waist, still creaking and groaning and growing at a much slower rate than Silver. She grinned, and then placed her hands on both sides of the massive metal cylinders. She licked her lips as the metal creaking sound changed. It was louder, more insistent. The tank - had it always just been the one tank? Tiara could have sworn there were two separate tanks, but it was so hard to think about things that weren't helping to make Master huge - slowly began to tear away from the base. "Hup!" There was a loud, ear-piercing screech of metal tearing as suddenly Silver lifted the vat to her lips. "Bottom's up!"

Thunderous gulping sounds filled the barn as a waterfall of liquid sex flowed down Silver's throat, her belly ballooning outward as it filled with enough milky cum to flood Manehattan. "Ah!" Silver sighed as she let the now empty vat drop with a heavy crash. A thick, corded arm rose up to wipe away her milk mustache. "Now that right there hit the spot!" She hiccuped, her giggles rumbling deeper and deeper as she shot up nearly half again her tremendous height. "Every growing mare needs her milk, after all!"

Diamond only groaned as a titanic hand scooped its way under her, freeing her from the milking machine with a booming -pop!- "Such a good moo-moo," Master said, raising her up. Though she was more breast than mare at this point, Diamond couldn't help but notice that even one of Master's perfect, pendulous tits far outclassed her... and beyond, as another growth spurt rumbled through Silver's body. From the size of Master's bloated belly, she was bound to get far bigger still.

"Y'all have earned a rest," Master said, slipping Diamond into her cavernous cleavage. The earthshaking rumble of her heartbeat reverberated pleasantly through Diamond's body - a nice little reward for doing so much to make Master grow. "You just stick in there and get comfy, so Master can find you later on." Silver licked her lips as she grew again and the masses of warm gray flesh cradling her moo-moo tripled again in size. "Never know when she's going to want another drink straight from the tap!"

"Always," Diamond murmured, feeling exhausted all of a sudden. Making so much milk and cum made any cow-pony tired, and she'd have to get plenty of rest so she could make her goddess even bigger. As the titanic Silver stepped out of the barn and into a world far, far smaller than she was, Diamond shut her eyes and dreamed contentedly of Master.