Rarity reclined in her seat with a blissful smile on her face, eyes closed. The backs of her eyelids were tinted orange from the sunlight that filtered through them, and her hair fluttered in the wind.
"You look relaxed. Can't say I'm surprised."
The moment ended, Rarity turned to face her smirking friend. Rainbow Dash was behind the wheel of the olive green, open-roofed Jeep they'd rented for the duration. Grass and trees whizzed by as Rainbow steered the car along a dirt road to their destination, a small cloud of dust kicked up its wake.
Rarity returned Dash's smirk with one of her own. "Just what do you mean by that? We're on vacation, it's supposed to be relaxing."
"That's why I said I wasn't surprised," Dash replied with a roll of her eyes. "It's just that I don't really 'do' relaxed. Right now, I'm excited. This trip is an adventure! You know I've never been to Giraffrica before."
"I had inferred as much," said Rarity. "I'm just glad you agreed to come; not even Pinkie could make the time."
"Yeah, well, nobody's faster than ol' Rainbow Dash! Of course I had time."
Rarity giggled at that. "Only you, darling."
To be frank, it was painfully obvious that Rainbow had far different goals for this trip just from looking at her outfit. She wore a bright red t-shirt with her trademark lightning bolt design, tan cargo shorts, hiking shoes, and heavy black shades. Rarity, meanwhile, had an elegant yellow sunhat tied under her chin to go with a matching dress. Not to mention all the sunscreen and moisturizing lotion.
The budding fashionista had proposed this quick getaway to her friends as a stress reliever. Canterlot was a fabulous city, to be sure, but the continuous bustle could get a bit stressful over time, and a few hours at the spa didn't always cut the mustard. An exotic locale such as Zebrabwe, deep in the belly of the continent, would work wonders, and perhaps also provide a bit of inspiration for her work.
When Rainbow never broke the silence between them, Rarity elected to simply push all thoughts from her mind and watch the scenery roll by. Flat tallgrass savannah slowly gave way to a smattering of gentle hills, plants casting long shadows under the pristine sky. Soon after that, the ground gave way to her right, a cliff face descending into a wide valley that stretched nearly to the horizon. The magnificence of the view stole her breath, the vast, untamed wilderness utterly captivating with its primeval splendor.
Glancing to the side, Rainbow whistled in appreciation. "That is one insane view."
"I'll say," Rarity confirmed.
But, as with all things, it was not to last, and the road curved away from the valley, towards the rural settlement that was their destination for the day. As they got closer to the village, named Wundugu, Rarity sent friendly waves at a few walking passerby. But the locals, their skin striped in bands of medium and dark grey, seemed universally despondent, the most enthusiastic only showing a small hint of curiosity as Dash drove past. Rarity frowned, wondering what was putting everyone in such a sour mood.
Eventually, they arrived, the informal border marked only by the presence of the first building, and Rainbow parked the car in a spot of dry grass. Energized and impatient, she didn't even open the door to exit, instead vaulting straight over with a whoop. Rarity shook her head at her friend's antics, daintily stepping onto the ground as the Jeep's manufacturers intended.
As Rarity gathered her things from the backseat, Rainbow tapped her foot impatiently. "Can you hurry it up, Rares? I want to get exploring already."
"So do I, Dashie, give me a second."
Once she was ready, Rarity followed along behind Dash as they made their way into Wundugu. "Say, did you notice that those guys looked a little down in the dumps?" Rainbow suddenly asked.
Rarity's eyebrows rose. "Why, yes, I did. I was thinking we might politely inquire as to the cause, assuming the mood extends to everyone here."
Dash snorted. "Me too, but I wouldn't have put it like that, hehe."
Scanning this way and that as she walked, Rarity tried to absorb every detail. The homes, while quite small compared to her usual standards, nevertheless appeared well-built. Some were made of wood, the rest bricks of dried mud. People stopped what they were doing to stare, given how rare visitors must have been. A good number wore the old remnants of clothing clearly made elsewhere, while others donned elaborately patterned garments of local make, their colors only slightly faded from the sun.
But it was their faces which confirmed her fears, and hurt a little to look at. Nobody smiled, each and every man and woman vacant and despondent. Even the children, a small gaggle of them sitting in the dirt, tiredly kicking a rock back and forth. Looking more closely at that group, Rarity noted the boys didn't bother to wear shirts, and she gasped. Their ribs were visible beneath the skin, a sure sign of malnourishment.
"Shit, I didn't think it would be this bad," Rainbow whispered.
Rarity pursed her lips and nodded. Resolved to get to the bottom of this, she approached a knowledgeable-looking old woman leaning on a wooden cane and cleared her throat. "Hello, ma'am. We just arrived in Wundugu a few moments ago, and I couldn't help but notice that, well..."
"You all look miserable," Dash finished, bluntly. "What's the deal?"
The woman let out a dry croak of laughter before responding, her speech heavily accented but understandable. "The river," she said, pointing behind her.
Rarity looked. There was indeed a streambed, the brown earth darker than its surroundings. But if there was a river flowing once, it sure wasn't now.
"No rain, many months," the elder continued. "Crops die. Animals leave. We suffer."
"That's terrible!" Rarity exclaimed, Rainbow nodding in agreement next to her. "I dearly wish there was something I could do to help you all, but what?" she wondered aloud.
Rainbow smiled gently. "She really would do absolutely anything if it could work," she told the woman. "Right, Rarity?"
"Of course I would, in a heartbeat," Rarity declared.
Suddenly, a purple glow flared into being at the base of Rarity's neck, and she stumbled back a step in surprise, dropping her purse. Her geode was glowing, and far more brightly that usual!
As the equally surprised elder stared, Rainbow blinked in confusion. "Uh, I'm not seeing any big, floating diamonds. What's going on?"
"I don't know," Rarity said. "It's doing that on its own!"
However, Rarity realized that she had perhaps spoken too soon. She could feel a building warmth in her chest, the likes of which she had never before experienced. It wasn't a bad feeling, far from it, in fact. But almost immediately, it did turn unpleasant. Rarity was finding it harder to breathe as something constricted her lungs. She shot an imploring look at Rainbow, a silent plea.
Rainbow, though, didn't make eye contact. Instead, she was looking somewhat lower, a faint blush forming on her face. "Uhh…"
Following the aim of her stare, Rarity slowly tilted her head down. It was her breasts. They were larger than she remembered, the pliable flesh visibly straining against their confines. As she watched, stupefied, breathing shallow, they pulsed and swelled, spilling over the edges of her bra before the straps gave with a loud snap, relieving the pressure. "Pardon my language, but what the fuck!?"
Rainbow didn't answer, her mouth busy flopping open and closed like a fish as she removed her shades.
Rarity groaned, half at Dash's reaction and half in pleasure from the rush of blood and faint tingling in her tits as they kept on growing. Her twin ivory mammaries had passed the size of basketballs already, their weight pulling down on her back as the expanding globes tore her dress' V-neck open lower and lower, revealing more cleavage every second. "Don't just stand there, do something!"
"W-What do you expect me to do?" Dash asked, wide eyes still transfixed by Rarity's swelling bust. "This is like what happened with Sunset, and she couldn't stop her magic then!"
Rarity whimpered in desperation, lips quivering. She cradled the undersides of her boobs, one in each hand, the supple flesh spilling down around her palms as her knees twitched under the strain of supporting such weight. As they surpassed the size of prize-winning watermelons, two things happened. First, her dress finally gave out, exposing Rarity's impossible orbs in their entirety. Her aroused nipples were bright pink, a tantalizing contrast against the white of her skin. Second, they became too heavy to hold, Rarity collapsing to the ground with a shout.
As her breasts surged beyond the size of yoga balls, Rarity's fear turned to awe. Her rack was surely the largest in the world now, guaranteed to command attention from any and everyone. And attention she did have, as the commotion, combined with the sight of her bared chest, had drawn the equally awed stares of everyone else in the village. Not a single Zebrabwan could resist ogling her, many beginning to mutter hushed words amongst themselves.
At the thought of the shameless public display she was making, Rarity's pussy began to ache with lust, bombarding her system with even more pulse-pounding hormones in recognition of her single greatest turn-on. Not like she needed anything more, though. The best part was that, along with her arousal, her growth didn't seem close to stopping. If anything, it was accelerating. Soon, her breasts were so big that her forward vision was totally obstructed, and her panties became laden with hot wetness.
No longer able to contain her feelings within, Rarity moaned aloud, the sweet music unmistakable as anything but erotic in nature. She groped at the back of her tits wildly, squeezing and kneading them to produce a flurry of amazing sensation. "This feels so good."
"The houses..." the old woman tentatively said.
Hearing somebody else speaking snapped Rainbow Dash out of her reverie, and she shook her head back and forth to clear it. As Rarity kept fondling herself, her boobs grew past the size of minivans, each torpedo advancing on a nearby abode. "Oh, shit," Dash said. "Rarity, snap out of it for a sec! You need to move, before half the town gets crushed! Use your geode!"
Blinking a few times, Rarity chuckled sheepishly as Rainbow's words registered. "Whoops, of course." Reluctantly pulling her arms to her sides, Rarity conjured a large hexagon of violet crystal underneath her, which she then levitated a foot into the air, spun around, and flew to Wundugu's edge. Rainbow trailed in hot pursuit, sticking to Rarity's side as many of the natives followed at a more subdued pace to keep watching in reverence.
When her magic cut off, Rarity's boobs hit the ground with a resounding thud, their mass jiggling vigorously as they settled. "Fuck, my girls have never felt this amazing before," She uttered, tenderly caressing then with circular motions.
Now that nobody was in danger, and shivering from fresh need herself, Rainbow closed the distance between them, pulling her own shirt over her head and showcasing the sports bra underneath. Without a word, panting heavily, she started groping Rarity's immeasurable softness along with her.
"Rainbow, what are you doing?" Rarity casually asked. "I'm sure you're absolutely spellbound by my body, and I definitely don't mind the extra attention at this point, but this is a bit forward, even for you."
Rainbow knelt down and draped herself onto Rarity's back. "I know we've never shot for 'benefits' with our friendship before, but thanks to you, I'm, like, really horny. You're clearly super horny, and we've literally shared a body before. Just roll with it."
Unable to argue with that logic, Rarity didn't resist as Rainbow doffed her hat and stripped the remains of her dress the rest of the way off, revealing Rarity's slim back and heart-shaped ass. Then, she pulled Rarity into a kiss, their tongues and lips pressing over and into their eachothers' recklessly. Normally, these sensations would occupy her full attention, but the thrill of their makeout had to compete against that of her boobs swelling.
Rarity couldn't see them in their entirety anymore, but she sure could feel them, and guessed each one was about the size of a mansion at the moment. Each of her nipples throbbed with sensations that completely dwarfed those in her pussy as the stimulation grew along with her tits. She felt a momentary displacement of the fat tissue on her far left, followed by a crunching sound, the combination confusing Rarity for a second. Then, she realized that was probably their car, pulverized beneath the tons and tons of mass she was gaining every second. This thought send a fresh spasm through her, Rarity moaning in euphoria into Rainbow's mouth.
When they finally separated, Rarity shot Rainbow a pleading look. "No more foreplay," she said, breathlessly. "I want you to fuck me, claim me, in front of the whole town. I want to be completely and utterly overwhelmed, overwhelming in a grand display of sex and scale, and damn the consequences. Can you do that for me, Rainbow Dash?"
Gulping audibly, Dash was struck by the sheer level of arousal on Rarity's face. All traces of the composed young lady had vanished, replaced by an expression of sheer sexual desperation. Saliva dripped down her chin as Rarity writhed in place, panting heavily like a bitch in heat. Seeing this transformation in her friend, even so more than her gargantuan tits, cranked Rainbow's own carnal desires up to eleven.
Rarity wailed her approval into her own cleavage as Rainbow wordlessly yanked down her panties and slipped a hand under her round, white butt to stroke at her cunt. Her walls clenched as Rainbow slipped a finger inside, another working at her throbbing clitoris like an electrified jackhammer.
"Oh, oh, oh!" Rarity groaned, lost in a hurricane of sensations. Every time she thought it couldn't get any better, it did, Rainbow's talented ministrations and her own ever building breasts surpassing prior limits. Her pussy continually oozed honey down her thighs and across Rainbow's fingers as her boobs kept escalating in size and sensitivity.
"Holy shit, Rares," Dash said, reluctantly pulling away. She did this for two reasons, so she could unceremoniously remove the rest of her own clothes, baring her toned body and her far more commonplace, cute little boobs, as well as take in the sights. Rarity's bustline had eclipsed everything else in view, casting all of Wundugu into their shadow. The villagers didn't seem to mind, some of the men sporting raging hard-ons visible through their pants, while others were actually bowing in worship and chanting in their native tongue.
Rainbow moaned, approving of everything about this, the situation, Rarity's dominating hugeness. As she brought her fingers to her lips, slowly tasting Rarity's sensual juices, Dash shoved her other hand down to her own pussy, muscles tensing as she masturbated.
However, even without an attending partner, this was nothing compared to what Rarity was experiencing, as her already hyperinflated titties became more and more and more. The smothered the land, hot, sweaty weight cracking the earth. Trees and bushes were broken to splinters a dozen at a time, bulldozed by her expanding boobs and sending great jolts of pleasure across Rarity's skin. Though, at this point, it would be more apt to say that Rarity was her boobs. What had once been her entire body was now a tiny, tiny fraction of it, her torso now a mere speck against the ivory backdrop of two veritable mountains. And mountains they were, each breast now reaching over mile into the air at their sloping peaks.
"Mmm... gah! Ha!" Rarity exclaimed, toes curling. Each little motion she made sent a subtle ripple rolling up the surface of her boobs.
Latching onto a sudden, perverted idea, Rainbow clambered over Rarity's head and dove right in, wiggling between her breasts upside down. The heat and pressure from Rarity's mounds enveloping her whole body was exquisite, and, ever loyal, Dash wanted to repay the favor. Conveniently, her head was now lined up with Rarity's pussy, and as the blood rushed to her head, Rainbow ate her out feverishly, desperately lapping at ever corner of her womanhood. Rarity, for her part, just kept on producing an endless string of throaty moans and high-pitched squeals, her breath washing over Rainbow's own cunt as her boobs ballooned ever larger.
Something new was happening deep within Rarity's tits now, a sensation of pressure. The pressure built inexorably within each of them, a sublime fullness. In an instant, she understood: this was milk, and it was the ultimate purpose of this new magic. Rarity was a creative spirit, designing unique styles. Only this time, she would be creating piping hot, liquid sustenance. So, so much of it, to fill the needs of the people for years to come with a product of her own self make. And produce she did, the tightness in her boobs growing even more quickly than their overall size, begging to be released. It was all she could comprehend now, Rainbow's blue hips and thrashing legs going completely unnoticed. Rarity's willpower went entirely into maintaining her sanity as her breasts sloshed and churned with untold gallons, the milk creeping forwards to her aching nipples with unbearable slowness.
Rarity could feel the wind caressing the skin of her boobs high above as her growth maxed out, the very clouds breaking apart into mist before Rarity's titanic assets. She was totally at the mercy of her body, her divine tits, and wouldn't dream of having it any other way. Rarity's heart worked in overtime, beating faster and faster as her hips bucked wildly against Rainbow and her own boobs in desperation. Said breasts were over three miles tall now, and even greater in length, the front-most part of her underboob having reached the valley. A not-insignificant portion of that length came from her nipples, each one the size of a volcano at over a thousand feet of hard, sensitive flesh. And, like volcanoes, they were preparing to erupt.
Shaking in anticipation of a monolithic climax, Rarity's eyes rolled back into her head, tears running down her cheeks from sheer pleasure. "Ahh, Rainbow, don't stop! Watch me, everyone! I'm gonna cum my fucking brains out for you!"
With a wordless scream that burned her lungs, Rarity burst. Her boobs orgasmed with an explosive rumble that shook the ground. Miles away, milk blasted out of Rarity's nipples in a sudden deluge. The thick, white cream rained down in roiling streams into the valley, obliterating great swaths of greenery on impact. The unbreaking torrent of milk washed over everything in a tsunami, inundating the landscape with Rarity's white-hot gift.
She came and she came, Rarity no longer able to form even the most basic of thoughts under the thrall of the most mighty orgasm the world had ever seen. She was a being of size and pleasure and giving, and she couldn't fathom ever stopping. Rarity's boobs generated far more milk than her already impossibly massive tits should feasibly be able to hold, the volume of creamy output flooding an area exceeding the size of her breasts a hundredfold. They just kept going and going, her climax nigh-on apocalyptic in scope, waves of milk roaring into every corner of the geography.
It felt like an entire lifetime had passed for Rarity when the flow of milk from within her finally began to taper off. In actuality, she had merely been cumming for over two hours straight, which was still frankly insane. Rainbow had long since righted herself within Rarity's cleavage, unable to look away from Rarity's string of blissful expressions as she brought herself to multiple climaxes of her own over the course of those hours.
When the shine of Rarity's geode finally dimmed, she instantly fainted, her breasts slowly shrinking back down. Once they were small enough, they stopped supporting her own weight, and both she and Rainbow fell to the ground in a satisfied heap.
In the end, Rarity's magically-enhanced tits had filled the entire valley to the brim with her nutritious gift. The newly-christened Lake Rarity spanned nearly six hundred square miles, and became one of the largest bodies of 'water' in Giraffrica overnight. The only people who complained about it were cartographers and environmentalists. The rest were too busy marveling at the spectacle of a lake of milk. Looking across the vast sea of white, one would be forgiven for thinking that the entire world had been oversaturated with the stuff.
As it turned out, there was magic inherent in the milk too, since it never settled or spoiled. The people of Wundugu joyfully drank their fill from the lake, any and all thirst forever slaked. They began to worship Rarity as a goddess of life and beauty, starting a new religion which rapidly spread around the globe once word got out. Worshipers carved super busty idols bearing her likeness and painted pairs of white circles on their foreheads in her honor. The area that had been smooshed beneath her boobs was consecrated as holy land, and a great temple was built there, people making pilgrimage to show their devotion and drink of the divine nectar. Others possessing less fealty and more lust simply masturbated repeatedly to the event, footage of which had been recorded by a spy satellite and later leaked to the public. Yes, Rarity had gotten so big as to be visible from outer space.
Rarity, once she had recovered from her mind-shattering episode, accepted her new position with humility, not allowing herself to take undo advantage of her worshipers and refusing any excessive tributes. Rainbow Dash, roped into the role of prophet, not so much. Still, that's not to say Rarity didn't change at all, and she reveled in the constant attention. She still crafted stylish clothes, to be sure, coming up with new sets of robes for the priests and nuns of her faith to wear every few months. However, the outfits she made for herself were far more dazzling and revealing than before, as befitting a goddess. Even in the coldest places she graced with her presence, she always made sure her breasts were exposed, so that they could be properly idolized. The new normal for her in terms of their size was in the watermelon range, each pert tit frequently carrying fine gemstones upon their bouncy surface.
And, well, who would she be if she never answered any prayers? There were plenty of people struggling around the world, after all, and Rarity was both able and willing to help them all.
