Size of the Sun

by Megapone

Rating: mature
Tags: Slice of Life, Anthro
Length: 15617

Celestia tends to grow into a giantess when she gets horny. Chrysalis, who plans to seduce her, doesn't know this.

Chrysalis has a plan: By seducing Princess Celestia, she can conquer Equestria without even launching a single attack. Unfortunately, it's Celestia's best-kept secret that her size is linked to her arousal—in other words, she tends to grow out of control when she gets horny, and Chrysalis's homegrown aphrodisiac more than does the trick.

As she spirals into an uncontrollable cycle of growth, lust, and orgasm, it's up to Celestia's fellow princesses to keep the situation under control. But can Twilight, Cadance, and Luna keep Equestria safe when there's a growing goddess ready to crush it beneath her swelling assets?

A commission for CrowMagnon

Published 1970-01-01 00:00:00 UTC
Last updated 2015-08-18 01:00:02 UTC

Growing Pains

Chrysalis had it all laid out.

She’d been scheming—though she preferred to call it plotting—to take her revenge on Equestria ever since that silly little princess of love had banished her two years back (not “defeated”, she maintained sullenly; turning love magic against her was clearly cheating). Finally, she was back, and she had a plan.

This time, she didn’t have an army. No; she’d learned her lesson. She wasn’t going to be anywhere near as clumsy as she’d been the last time. This time, she was going to go straight to the source. Changelings had always been better at seducing than conquering anyway. So, she’d reasoned, why not cut the nation’s government off at the head? If she played her cards right, Princess Celestia was as good as hers.

Obviously, a changeling couldn’t just show up at the Canterlot gates unannounced, and especially not their Queen. So Chrysalis had morphed herself into a particularly (she thought) attractive-looking stallion, a few inches over six feet tall, with an athlete’s build and a bulge in “his” crotch that just barely bordered on the obscene. Nopony had ever said that the Queen of the changelings wasn’t vain, no matter her form.

Gaining entrance into the city itself had been laughably easy. The last time she’d entered, she’d done so under the cover of night; she’d wanted to avoid any awkward questions (or witnesses). She’d been lucky, then, managing to steal away that foolish “Princess Cadance” without much difficulty. Chrysalis doubted, though, that getting in undercover would be that simple a second time. And besides, this time, she wanted Canterlot to know that she was there.

Or at least to know that Gleaming Blade, suitor to the Princess, was. She’d spent a whole night coming up with the name and a suitable backstory. While she didn’t have too much experience with pony cultural traditions, she’d memorized her little character and then congratulated herself on a job well done. She’d almost been miffed when the guard at the gates had taken one look at her “papers,” stamped them without even reading to the end, and then lazily waved her through. She’d worked hard on those forgeries!

Still, what was important was that “Gleaming Blade” had managed to get into the city without any complications. When she learned that she’d been accepted as a petitioner to the Day Court, she’d all but cackled in glee. Such a meaningless gesture, Chrysalis thought, a monarch deigning to listen to the moans of her subjects. Then again, she couldn’t deny that it was helpful for her own plans.  Suitors to Princesses Celestia and Luna, it seemed, were a fixture of palace life. Most, of course, were kindly turned away (though usually not without a night or two of fun in apology in Luna’s case. Even immortal alicorns, ponies said, had needs, though she’d never heard of Celestia taking one up on an offer. Odd.).

Chrysalis just nodded and grinned as the ponies around her gossiped about their Princess. Other “suitors” may have failed, yes. But none had had a changeling’s secret weapon. Between her natural love magic and the potion she’d packed away in her bags—a powerful aphrodisiac that was sure to get even Celestia more than interested in her—she was sure that her plan was foolproof.

Celestia had it all laid out.

With a slight curve to her lips, she eyed herself in her bedside mirror. One creamy white, slender hand traced a line down her hips. She found herself cupping her hand around her wide, foalbearing hips, then opening it again as she moved it down toward her thick, muscled thighs. The fabric of her dress rippled quietly beneath her fingers, but she could feel the warmth of her coat and Cutie Mark as if it were pressing right up against the palm of her hand.

She moved her hand back and put more weight on her left leg, allowing her right side to lift up an inch or so into the air until she was standing on tiptoe. Her smile broadening, she slowly rotated until she could see her long, slender fingers tracing along the contours of her rump. Whereas the most other ponies could usually aspire to was a “bubble-butt,” as a Princess, Celestia possessed a rear of truly awesome magnitude. It stuck out a good three or four inches beyond her slender waist, and she gasped when she gave it a light pinch. Her smile turned into something resembling a smirk.

She began to massage her thick, jiggling rump. It felt so good to feel her supple, warm flesh sliding between her fingers. Even with her body half-turned like this, too, she could just barely see the top of her breast shelf in the mirror. Her breasts, a pair of massive L-cups, bounced softly as her other hand fondled her protruding bust. She could feel her nipples, now erect, twitching against the fabric of her bra and bodice. With a low, throaty moan, she felt a surge of warmth playing up her spine, felt her dress growing tighter around her hips—

Hastily, she cut it off there. Her hands dropped to her sides, and a light blush appeared on her cheeks. As the Princess of the Sun, her power had a tendency to...run away a bit when her emotions were roused. Arousal, she supposed, wasn’t quite the best idea when she still had a full day’s worth of meetings before her. And to start growing in the middle of her chambers, right where anypony could see? A frown creased her cheeks. No; that wouldn’t be a good idea.

So instead, reluctantly, she turned away from her mirror, her breasts still bouncing lightly against her chest. Her custom-made bra did a good job of containing them for the most part, but she’d always found the motion they made when given a degree of freedom to be highly entertaining.

That described most of her body, really. At seven and a half feet in height, with a slender, toned body and a bust and butt most mares would kill for, Celestia was a stunner. When set free, every bit of her body jiggled, throbbed, and bounced. Held within a dress, though, every bit of her glorious figure was barely contained—hinted at, certainly, teased, but concealed.

In a way, really, it was no surprise that she was as big as she was. Even as a younger mare, Celestia had been entranced with her body. Her ascendance had merely provided the...tools for that body to reflect her opinion of herself. If asked, of course, she’d vehemently deny that she was narcissistic in any way—but, then again, a clear, innocent mind did not tend to grow a six-foot-two unicorn into a busty, seven-foot-six alicorn.

Her secret, she’d once supposed, was that she was always aroused.

Once the dress had stopped feeling tight around her, and she felt she’d gotten control of herself once more, she went to the door and called for her butler.

“Day Court first?” she asked. She was sitting in her usual oversized chair in the Royal Dining Room and sipping at a cup of coffee. As the first draught of hot liquid trickled down her throat, Celestia closed her eyes and savored the feeling of caffeine seeping into her bloodstream. Now that was what she’d needed.

“Yes, Princess.” Her butler, a youngish unicorn stallion by the name of Star Light, beckoned for the chef’s assistant to bring out the next course. Celestia brightened when he removed the metal top from the platter, revealing a platter of eggs, a muffin, and a good bit of jam. She thanked him, and set about tucking her napkin into her collar. Most ponies would put theirs into their lap, but with a bust as big as hers, she’d learned quickly that it was best to place it higher up.

“After that,” Star went on, inspecting a piece of parchment levitating beside him, “you’ll have a meeting with the visiting Saddle Arabian dignitaries, followed by lunch with the Headmistress of the School for Gifted Unicorns. After that, you’ll take tea with the Canterlot Homeowners Association, and attend a meeting of the Financial Committee in the Lower House.”

Celestia nodded vacantly, her full lips pursed as Star rattled off the next three things she’d be expected to do. She didn’t mind her official duties, not really, and it was hard to resent them when Luna had leapt back into the fray with such enthusiasm after returning from the Moon…

Still, she remembered that flicker of warmth, of pleasure she’d felt while tracing her figure in her room. She stifled a happy shiver. When was the last time she’d let herself loose? The last time she’d really pleasured herself? It must have been a good two weeks ago, Celestia recalled, in that abandoned valley near the Everfree. A smile crossed her face. She could still remember her bust heaving, her muscles spasming with pleasure as trees crumpled beneath her weight, her fingers leaving gouges in the soil deeper than a normal pony was tall as the clouds grew closer with each passing breath.

Reluctantly, she let the memory go. Perhaps some other time. Today, as were most days, was a day for responsibility. For official functions. And the first, she supposed, was the Day Court.

She finished off her eggs and dabbed at her mouth with the napkin. Then, pushing away her chair, she stood up and nodded down at Star Light. “Very well,” she said. “Let’s go see today’s petitioners.” Hopefully, she noted privately, something interesting would happen.

Chrysalis didn’t enjoy waiting.

The petitioners—she mentally labelled them as “desperate peasants” while taking care not to label herself as such—were each given a number and told to wait for their turn to address the Princess. Queen Chrysalis, however, did not wait. She was not patient. She abhorred the very thought of allowing the petty moanings of lowlife peasantry to impede her glorious plan of invasion!

She’d just about made up her mind about demanding a proper audience as befitted a conqueror—er, suitor—of her stature when she noted the stallion guard watching over the rest of the petitioners. The very tall, very muscular, very imposing guard. Just one of his arms looked around as thick as her normal-sized waist.

Chrysalis sat down and waited her turn. Fortunately, it only took another twenty minutes before her number, twenty-four, was finally called. It was for the best, really; she’d been about ready to declare war right then and there, and damn the consequences.

“Good morning,” Celestia said, smiling down at the handsome stallion walking in. Her smile faded when she realized that he was less walking than strutting, but she kept it on her face all the same—if not for the stallion’s benefit, then for the benefit of the other petitioners and the rest of her Royal Court who were in the room with her. It wouldn’t do for Twilight, who’d been seated in a throne beside her to learn about the petitioning process, to get the wrong idea about treating one’s subjects. So, as she’d done for centuries, she smoothed over her reaction and said, “Welcome to the Day Court, master…?”

“Gleaming Blade.” The stallion gave an impressive bow, the lapels and pins scattered across his dressy suit glinting in the light. “Might I say that you are truly more beautiful in person than I could have ever imagined, Princess.”

Chrysalis struggled not to grit her teeth as the words slipped out of her mouth. She hadn’t enjoyed suppressing some of her more virulent language while masquerading as that other Princess, but this...drone-worthy flattery absolutely grated on her, each syllable dripping with false honey and sycophancy. At least it be over soon.

Celestia’s forehead creased. Oh, dear. This would be one of those petitioners, wouldn’t it?

“To impress upon you my love and devotion”—Chrysalis almost choked on the words—”I’ve brought you a gift, Great Princess.” Royalty always loved a little embellishment, she knew from experience. Some extra flattery wouldn’t kill her.

“Oh?”

“Indeed.” Rummaging through “his” pockets, Gleaming Blade produced a ribbon-tied box. “The finest chocolates in the land,” “he” boasted. “A token of my affections.”

Celestia nodded to one of her guards, who took the box and carried it up to her. “Thank you, Master Blade,” she said, inspecting the box. “It’s truly appreciated.” As the stallion nodded and made his way to the side of the room, Celestia popped open the lid and, after inspecting the chocolates inside, lazily popped one into her mouth.

From behind her disguise, Chrysalis grinned. She’d done it. Celestia had downed the potion. Soon, her special potion would go into overdrive, focusing Celestia’s growing lusts toward a very specific pony—her.

“Mm,” Celestia murmured, feeling the silky-smooth chocolate slide down her throat. She had a soft spot for sweets, and a gift of chocolate was just the thing to brighten her morning.

She turned to Twilight. “Would you like one, Twilight?”

Twilight, about a foot shorter than Celestia in her own throne, shook her head. “No thanks. Spike made a really big breakfast.” She patted her stomach and grinned.

Celestia grinned back. More for me, she told herself, and popped another one past her lips before refocusing on the task at hand.

As the next petitioner came in and began to talk, though, she found her mind drifting—specifically, to thoughts of sex. She found herself eyeing the rugged physiques of her guards, of the way her bust stuck out in front of her—even, she noted with some surprise, glancing over Twilight’s alicornized figure with no small amount of approval.

This was wrong. She needed to pay attention. She was the princess, not some two-bit mare. But all the same, she found herself closing her eyes, her slender fingers drifting down between her legs. Her full lips rubbed together as her fingers found her swollen, puffy labia through the fabric of her dress. Her nipples were stiffening against her bra, the heat in her loins growing almost unbearable as she shifted in her throne.

It took Twilight a moment to realize where the moans were coming from. She glanced to her side and paled when she saw that her mentor was softly rubbing the space between her legs as she grinded her back against her chair. “Um,” Twilight whispered, “Princess Celestia?”

Celestia stifled a moan. Oh, gosh. This felt so good. “Yes, Twilight?” she murmured dreamily.

“Should you be doing, ah, whatever you’re doing?”

“Doing what?” Celestia’s fingers hit a particularly sensitive spot just above her thigh, and her eyes all but rolled back in their sockets as a wave of heat and pleasure surged up her spine. Oh, yes. She’d needed this.

Ponies in the crowd had started to notice. A low murmuring was spreading through the crowd as more and more came to realize that, yes, the Princess of the Sun was indeed masturbating in the middle of the Royal Court. More than a few shifted uncomfortably; glares, stares, and dropped jaws were par for the course. But Celestia just smiled drowsily and kept at it, massaging her warm, throbbing clit as her panties moistened.

Twilight swallowed—and then stared. Surely she was imagining it, but Celestia looked a bit...taller than she had a second ago. A bit bigger. It must have just been the way her back was rubbing against the throne, pushing her very impressive bust up a few inches more—but then there was a sizeable r-r-rip and Celestia’s bodice ripped right down the seam.

“O-ooh.” Celestia moaned, shuddering as ripples of warmth filled her body. Her dress was suddenly incredibly tight around her body, but she didn’t care. She flexed an arm and the sound of ripping, popping fibers filled the air; she flexed her growing chest and her dress simply split right down the middle.

Her long legs got longer, her thighs all but exploding from their restrictions as seven-foot-six became eight-foot-ten. By now, Celestia’s growth was evident to all but the most blind of onlookers, and more than one had begun to back away toward the door.

“Ooh, yes,” Celestia moaned, her whole body shivering as she surged up another two feet. Her dress was in tatters now, the fabric barely managing to cling to her breasts as the bottom half simply fell to the floor. Her overstretched panties were visible for the whole court to see. Damn propriety, Celestia thought, her lust washing over her like a tidal wave. Her skillful fingers continued to go to town on her needy clit. She needed this. She wanted this. And it felt so go-o-oood.

She stood up from her throne on unsteady, growing legs. Now at nearly twelve feet in height, the top of her horn reached almost halfway to the height of the throne room. Celestia shuddered as her first orgasm hit her, her pleasure peaking and sending her crashing to the ground. She landed on her elbows and knees, and the ground cracked slightly beneath her. She kept her hand firmly by her crotch, though, still masturbating fervently as she passed fifteen feet and surged onto twenty. Her moan of pleasure all but shook the room, her heaving bust dripping with sweat and arousal as the last tatters of clothing burst from her glorious form.

Chrysalis soon found herself backed into a corner by the growing goddess’ massive ass, each heaving butt cheek nearly as tall as she was. Impossibly round, and spotted with a pair of Cutie Marks bigger than the changeling queen’s head, Celestia’s ass was an enormous spectacle that both aroused and terrified her.

This wasn’t supposed to happen. She certainly hadn’t added a growth serum to the love potion—what had gone wrong? Chrysalis wanted to find a drone to punish; she needed to find someone to blame, some way to escape, to get out of here and rethink her plans.

She might have, too, if a growing and horny goddess hadn’t noticed her creeping along the edge of the wall.

Celestia noticed the attractive suitor in the edge of her vision and instantly found her every thought focused on him. Goodness, some part of her whispered, isn’t he attractive? Fun, too. “Come here, sweetheart,” she found herself purring as she reached out a massive hand to seize him around the waist…

Chrysalis grunted, squirming as the twenty-five foot Celestia seized her, rendering her helpless in her massive grip. “Look at you,” Celestia cooed, stroking Chrysalis’s chest—and then “his” groin—with a thirteen-inch finger. “I could just eat you up.”

Chrysalis’ eyes opened wide. Oh, no.

Fortunately, though, it seemed the busty goddess had other ideas. With a flicker of her horn, Celestia slipped “Gleaming Blade” out of his clothes, leaving him bare for all the world to see. Chrysalis was too terrified to unmask herself, so Celestia was perfectly happy to push the “stallion’s” crotch against her own and start rubbing—at least until Chrysalis’ leg actually slipped inside of Celestia’s enormous pussy.

“Ooh,” Celestia said, her back arching as she used Chrysalis like a sex toy. “Now that’s good.” Her breaths came faster, her chest began to heave. The heat in her loins intensified until she was regularly pumping Chrysalis in and out of her marehood, growing with every “thrust” until she’d passed thirty feet and the tops of her ears were scraping against the ceiling of the throne room sitting down.

With a cry of pleasure, Celestia threw her head back and moaned, her orgasm hitting her with the force of a freight train. Chrysalis just let out a muffled scream as waves of femcum washed over her, Celestia’s wildly convulsing walls drawing her in before spitting her back out. She hit the wall, thoroughly drenched in Celestia’s juices, and blacked out.

From her position beside her throne, Twilight felt like she was dealing with the shock rather well. “Don’t panic, everypony!” she shouted, straining to make her voice heard over ground-shaking moans of her rather over-enthused mentor. “I, uh—just file out the doors!” Sweat was running down the sides of her face. She watched Celestia pleasuring herself, blanched as her “extra-large” mentor actually seized a pony from the crowd to do so, and struggled to hold onto sanity as Celestia’s first orgasm overtook her.

“Please!” she shouted, her own chest heaving as she struggled not to hyperventilate. “Just—uh—don’t panic, and, uh—”

“Twilight Sparkle!”

“Yes, ma’am!” Twilight blurted, leaping to attention. When she recognized the speaker, though, her cheeks flushed. “Luna! What’s going on!”

Princess Luna stood by the throne room’s heavy twin doors, her chest heaving and her eyes wide. “It is an old habit,” she bit out, staring at Celestia’s growing form with awe and a slight amount of fear. “One she told me she’d broken. But if she has truly slipped this far into lust, Twilight Sparkle, then—”

A bolt of night-black magic lanced from her horn as Celestia’s arm, as thick around as an entire pony, brushed against one of the room’s pillars and sent it crashing to the ground. Luna blasted the falling architecture into dust, and then telekinetically flung a huddled group of ponies away from the blast zone and into the hall.

“Evacuate the palace!” Luna hollered. “Get everypony safe! My sister has gone  out of control!”

In a flash of magic, Twilight appeared by Luna’s side. “But—how can I do that?” she asked. “I don’t—I didn’t—” She winced as another, particularly loud moan on Celestia’s part split the air, the growing goddess adding another few feet in size. By now, she had to be nearly fifty feet tall; even leaning back against a wall with her hand between her legs, the tops of her ears were still brushing against the throne room’s ceiling.

“Find Shining Armor!” Luna unceremoniously flung another group of ponies out of the way of Celestia’s massive foot. “Perhaps he can create a shield strong enough!”

Twilight’s eyes lit up. Of course! Shining and Cadance were visiting from the Crystal Empire—they’d be able to help for sure! “You got it, Pr—Luna,” she said. With a final, gawking glance at Princess Celestia, she teleported away.

Luna growled under her breath and summoned up her magic. “And I,” she rumbled, “shall stay behind to deal with my sister.”

It wasn’t long before Twilight ran into Shining—in this case, quite literally. “Oof!” she grunted, immediately rubbing her forehead from the impact.

“Twily!” Shining’s eyes were wide. “What’s going on? I heard something happened to Princess Celestia!”

Twilight gripped him by the lapels of his coat. “I don’t have any idea how, but she’s growing into some sort of lust-driven giant! She’s going to outgrow the palace at this rate! You have to help me evacuate everypony!”

“You got it.” Cadance, a few feet behind him, looked rather ashen, but also determined. “What can we do to help?”

“Get everyone out of the palace,” Twilight said. “I can help. And then Luna wants you to try to shield the rest of the city if needed.”

Shining nodded. “Done. When and where should we start?”

A rumble echoed through the castle walls. A crack snaked down the left wall, and then—SMASH! An enormous foot, taller than any of them, crashed through into the hallway. Luna was visible through the rubble, still frantically trying to prevent as much structural damage as she could. Shining and Cadance gaped at the big and growing Celestia, who now looked to be a good sixty feet tall. The tops of her shoulders were rubbing against the ceiling of the throne room, with cracks spiderwebbing outward from the point of impact. They could actually see her growing, her entire body swelling as her massive hands went to town on her enormous, puffy clit.

“Now!” Twilight hollered. The three took off running.

Inside the throne room, Celestia just moaned even louder. The room itself wasn’t long to contain her. Already, the cracks along the ceiling had spread more than a dozen feet in any direction. Her head was bowed low to her chest, her heaving breaths forced against her enormous, pillowy bust. She let out another cry as another orgasm swept through her—and her growth redoubled with the pleasure.

The ceiling crumbled into rubble, the stone coming crashing down around her huge and growing body as the growing goddess passed seventy feet without breaking a sweat. Flashes of magic burst around the floor above as the three other alicorns teleported helpless servants and guests out of the hazard zone. Celestia, caught in the throes of growth and pleasure, paid no mind to the architecture crumbling around her as another growth spurt hit. She moaned, low and throaty, her heaving bust swelling up as she passed eighty—no, ninety feet in height.

The next floor was nowhere near as tall as the courtroom had been. It only took a few more smaller spurts, each of around four or five feet each, to put Celestia’s growing body close to bursting free. Her body spasmed in pleasure, and, seizing forward with the force of her orgasm, she caught herself on her hands and knees. Still breathing heavily, and overcome with the sensation of growth, Celestia pushed herself to her feet—and broke right through the roof.

It crumbled around her just as the ceiling had before. Ponies all around upper Canterlot, already somewhat unnerved by the shouts and rumbling coming from the palace, began to shriek and run as their massive Princess’ head emerged from the top of the East Wing. Celestia blinked down at her panicking subjects. A sliver of lucidity slipped across her mind as the last throes of her orgasm finished.

Far, far below, a woozy Chrysalis felt her hold on her transformation evaporate. Groaning, and cradling her aching head, she slowly came to. Why wouldn’t her head stop swimming? Why did it feel like someone had been hitting her head with a mallet? And what was this enormous shadow stretching over her?

She glanced up and saw Celestia’s massive figure towering over her. The princess’ dripping labia winked down at her from its place forty feet above. Chrysalis followed the curves of the princess’ legs up past her hips and big, bouncing ass, past her incredible bust, and finally up to her smiling, sighing face…

With a dramatic sigh, Chrysalis fainted again.

Beyond the walls of the palace, Celestia was finding that much of Canterlot was having the same idea. “My little ponies!” she called, her voice booming out over the city. She glanced down at the shapes whirling around her feet, and then out over Lower Canterlot. A shiver went down her spine when she realized that the wall around the palace only came up to thigh height on her now. Carefully, she lifted up a foot and attempted to place it on the other side of the wall. “There is no need to fear—”

Unfortunately, she still wasn’t quite used to her new size. She’d also neglected to fully take in her surroundings. As a result, as Celestia lifted her leg above the wall, her thigh brushed against a particularly tall crenelation. Her tight, warm muscles instantly spasmed at the physical contact, letting a small rainstorm of alicorn juices cascade over the ground below. Celestia just stifled a moan and stumbled. She landed on her knees in the middle of the wall, her massive legs gouging out a huge hole in the stone. The ground shook beneath her enormous weight, by now nearly two hundred tons.

At over one hundred feet in height, and nearly two-thirds of that kneeling, Celestia found her face at just above the heights of some of Canterlot’s taller towers. She bit her lip as lust and concern battled it out in the depths of her mind. She was still so horny—so huge—and she needed to get huger. It was a raw, compulsive need, a burning that extended beyond her loins into what felt like her very soul. Her hand trembled above the city streets, her body still steadily adding on more size at the rate of a foot every few seconds.

“Oh, dear,” Celestia said, biting her lip. She didn’t want to hurt any of her little ponies—but she was still so incredibly horny. And at this size, there just weren’t many things that could satisfy her…

Her resolve wavered just for a moment—and the lust flooded back in. “Just one little tower,” she told herself, reaching forward to snap the building off at the base.

Far below her, a panicking Twilight saw her mentor reaching for a tower. “Shoot!” she gasped. She vanished in a poof of magic.

“No time to talk!” she informed the elderly mare who’d been watching her window in a kind of religious awe. “We’ve got to get to you out of here!” Another zap of magic set the two of them outside on the streets, and a third put Twilight back in the building.

The tower shook as Celestia got her hand around it. Twilight did double-time, struggling to evacuate the tower as the gigantic goddess ached with ever-increasing need.

“Ah,” Celestia said, eyeing her new “toy” with a lazy, lusty grin. “Very nice.” She wasted no time inserting the spire inside of her burning pussy, which, around seven feet in height, wasn’t quite large enough to take the rest of the tower’s girth inside. But that didn’t stay true for long.

“Aah!” Celestia moaned, falling back onto her elbows as pleasure washed over her. Another section of the wall crumbled beneath her, and the roads started to crack beneath the weight of her magnificent body. She could feel herself growing larger and larger to make room for her toy. It slipped a little further inside each second, the tightness becoming almost unbearable as Celestia’s desires raced against her size. One hundred feet and ten feet became one hundred and fifteen. One hundred and twenty. One hundred and thirty—

All around her, ponies watched in awe as their princess added dozens of feet to her enormous figure. Her groans of pleasure shook the nearby buildings, the thumps of her thirty-foot hips shattering the streets. An idle twitch of her arm smashed through a (thankfully evacuated) tower; a spasm of her foot ripped through a pavilion.

Somewhere below Celestia’s aching thighs, Luna snarled as she dodged a crashing building. “Damnation,” she growled. “There’s only one way to stop this.”

Dealing with the more powerful, more mercurial of their celestial pair had always had a tendency to drive Celestia into an emotional frenzy whenever their magical resonance got too high. Luna had never experienced the same, but she was more than used to her sister’s habit of growth whenever things got a bit...heated.

She swooped below Celestia’s thrashing heel, which by now was taller than she was. Her sister was still growing steadily, passing one hundred and forty feet. One hundred and forty-five, now, and still growing, her enormous, pillowy breasts growing with her as her bust grew large enough to fill the entire Palace Ballroom with its mass.

Once she was set off, Luna knew, there was no stopping her. The Sun was a powerful, volatile thing, and its energies would continue to grow inside of Celestia until she found sufficient release. She’d already come to orgasm at least a half-dozen times, though; Luna winced as an earth-shaking groan of pleasure rocked the ground below her. There had to be some way to maximize her pleasure without anypony getting hurt.

Fortunately, with all of the ponies around, it wasn’t long before Luna came to an idea. She alighted beside Twilight, who’d been staring wide-eyed at the destruction Celestia had left in her wake.

“Princess Luna!”

“Princess Twilight,” Luna said. She inclined her head at the younger mare. “Is the palace evacuated?”

“Nearly. Cadance is just finishing up the rest.”

“All done!” Both princesses turned to see a third alicorn swooping down on them; a glint of magenta magic beyond the edge of the crowd showed that Shining Armor wasn’t far behind. Cadance hit the ground running and slowed herself to a stop. “We’re all clear.”

Her smile turned to a frown, though, as she turned to face Luna. “Aunt Luna,” she said evenly, “before we go any further, you need to tell us what’s going on here.”

“Yes!” Twilight burst out. She stepped closer to Luna and then paused, as if uncertain of whether to go on. At Luna’s nod, a torrent of words burst out. “Well, what’s wrong with Prin—Celestia? Is she sick? Has she been cursed or something? How can we stop her? How can we, well, help her?”

A particularly low, throaty moan rumbled the ground beneath their feet as the gargantuan goddess added another dozen feet to her size. Twilight’s cheeks blushed a bright red, and she hastily averted her eyes toward the ground.

Oh, dear. Luna pursed her lips. It appeared that Celestia had not, ah, taken Twilight Sparkle into intimacy. In the old days, it had been common, though she’d refrained from asking upon her return out of politeness. But this level of apparent discomfort was...unexpected.

She sighed, then winced as Celestia’s thrashing legs brought another building down. Most of the citizenry was out of the way, so they were fairly safe for the time being. But time was still at a premium.

“As you surely know,” Luna said, carefully, “as all mares do, my sister has, ah, needs.”

Twilight blushed even redder. Cadance just raised an eyebrow and nodded.

“However,” Luna said, “due to her emotional codependence on the Sun and its energies, it is rather easy for a state of a heightened emotional and physical sensation to lead to a resonance with the power she controls, leading to an influx of energy and, therefore, size, into her person.”

Twilight blinked owlishly.

“She gets big when she gets horny,” Cadance supplied. Twilight’s mouth formed an ‘o’. Then her cheeks flushed further, until she was as bright red as a cherry tomato.

Luna cleared her throat. “Approximately. So, Twilight Sparkle, this is no curse or spell. This growth is a part of my sister—albeit one that she usually tries to control.”

“Control?” Twilight said.

“She refrains from sensual pleasures,” Luna clarified. “She usually cannot afford to ‘let loose’ in a public area such as this. Since I’ve returned, I’ve noticed that she’s taken up a habit of doing so in far-off, isolated regions of Equestria. Of course,” she said, frowning, “in the old days, our increased stature—and, occasionally our gigantism—served to bolster the respect that ponies had for their monarchs. Nowadays, I understand that much of that respect has sadly declined.”

Twilight’s mouth was moving silently. Luna caught the words “refrain” and “pleasure.”

“So she can’t do anything?” Twilight asked. “That sounds awful.” Cadance was nodding.

“She avoids arousal, yes,” Luna said. “Unless she chooses to—or is made to—‘let go.’”

“Made to?” Cadance cut in. “But you said that this was something she chose to do.”

“Usually. But the Celestia I know would never have allowed herself to go out of control in the middle of court. No,” Luna said. “Somepony is to blame.”

Celestia let out another earth-shaking moan. Twilight actually jumped when the ground rumbled beneath their feet.

“Well...is she done?” she asked. “She hasn’t, um, grown in a while now.”

“Nay,” Luna said. “This is but a lull. If she had finished, she would be shrinking now. I fear that my sister has many more feet—or even miles—yet to grow.”

Twilight and Cadance exchanged a look. “Miles?” they said in unison. Luna looked grim.

“The best way to keep her size manageable is to help her achieve maximum pleasure,” she said. “Once her lust has been sated, her growth will cease. Until then, however…”

“She’ll keep getting bigger until she’s all sexed out,” Cadance said. “Got it.”

“So what do we—“

Twilight stopped. Her eyes got as big as saucers. “Oh, no. You can’t mean—“

“Yes,” Luna said. “We will have to assist my sister in her pleasure-making. It is a necessary thing,” she added, seeing Twilight’s obvious discomfort, “though I understand if you wish to step out. All we must do is help my sister maximize her pleasure; personal participation is not required.

“However,” she went on, almost slyly, “in my time, it was a tradition for the princess to take on a student and consort. I am also sure that she would greatly appreciate any of the efforts of her prized student in achieving our goals.”

Twilight’s mouth opened, flapped a few times, then closed. Her expression morphed into a kind of firm, though rosy-cheeked, determination. “I’ll help. What do we have to do?”

Luna told them. By the end, Cadance was nodding along.

“Are you sure?” Twilight asked.

“I must be,” Luna said. “Now go!”

The three alicorns dashed off in separate directions. Each had her mission: to gather up as many ponies as they could to please their growing princess.

Luna gathered a small squad of earth ponies and teleported them around Celestia’s enormous figure. Cadance led a team of a few dozen pegasi in pleasuring Celestia’s massive clit. Twilight, still blushing madly over the idea of actually sexually pleasing her longtime mentor, nonetheless managed to assemble a small army of unicorns to magically massage Celestia’s enormous, pillowy breasts.

Celestia just groaned with incalculable pleasure as she felt the sensation of so many tiny hooves massaging her body. Biting her lip, she peered over her erect nipples, each one nearly two feet in length, and eyed the ponies massaging her stomach, thighs, and hips.

“Ooh,” she moaned, her whole body shuddering. Thankfully, nopony was shaken off, and a few quick levitation spells ensured that nopony got crushed. “Now that feels good…”

Tiny voices rang out in her ears as her unicorn servants squished her heavy jugs together. Far from being afraid of her, they seemed almost...worshipful? They loved her size, they loved her power, they loved her raw, oozing sexuality. Celestia found herself panting as the hooves and wings of nearly two dozen pegasi worked her throbbing marehood. She let out a cry, her back arching with pleasure—and spotted Twilight Sparkle, giving into lust to help save her mentor, madly humping her swelling nipples.

That set her off. With another groan that shook the whole palace, Celestia doubled over and began to surge in size again. This time, she managed to get one foot onto the ground—and then slowly drew herself up, her orgasm surging within her as she soared past two hundred feet in height, finally settling at around two hundred and twenty feet. Now, the top of the palace’s tallest towers just barely reached her chin, and the rest of her little ponies looked almost like ants beside her feet.

Where once her inhibitions had restricted her pleasure, the sight of her subjects pleasuring her—in many cases, with their entire bodies—allowed Celestia to finally give into temptation. For the first time since she’d first broken through the palace, she allowed herself to feel her size: now almost two hundred and thirty feet of raw power, lust, and virility. With a long, drawn-out sigh, she embraced the sensation of growth, let it curl around her like a lover’s arms.

And as she inhaled, it filled her completely.

A piercing cry split the air as Celestia felt the Sun’s power rushing into her. She clutched her generous hips in her opposite hands, her wrists rubbing against her toned belly. Her massive, pillowy breasts suddenly surged in size. Relative H-cups became relative O-cups, her jugs swelling until her forearms pressed deep into her supple titflesh.

A leg over one hundred feet long crashed into another wall, bringing it crashing down to the earth before Celestia doubled in height. The comparatively tiny ponies below watched in awe as their hoofball field-sized princess crushed the massive architecture beneath her as easily as a child knocking over a sand castle. She was four hundred feet tall now, adding on more and more feet in height by the second.

Far below her, Twilight watched her growing mentor with awe. She’d fallen off of Celestia’s bust just as the princess’ growing nipples had surged as large as she was. Now, she was standing a few dozen yards away from Celestia’s ankles, the Princess’ forty-foot feet gouging out deep canyons in streets barely wide enough to contain them. Her growing body cast a shadow large enough to cover a good fourth of upper Canterlot. As Celestia added another hundred feet to her height, almost as easily as breathing, Twilight’s eyes only grew bigger.

“How big is she going to get again?” Twilight breathed to herself.

“Miles, right?”

She whirled. “Shining!”

“In the flesh,” he said. He grinned tiredly. “Cadance brought me up to speed. If she keeps growing like this, I’ll probably be brought in before long.” He jerked a thumb over his shoulder. “I already shielded one of the barracks from her royal derriere.” They both winced as a moaning Celestia, her body swarming with more and more ponies trying to pleasure her, crashed back down to Earth.

“I hope that wasn’t it again,” he said.

“Y-yeah.”

“Not that I would mind getting a view of a flank that big.”

“Shining!” Twilight said. “That—that’s Celestia you’re talking about.”

“Give me a break,” he said, chuckling. “I’m married to the Princess of Love. A stallion gets used to thinking along those kinds of lines when you’ve got a wife for whom a dozen-pony orgy is just another Tuesday evening.” He shrugged as Twilight’s mouth dropped. “And given the circumstances...I’d say ogling an ass that wonderfully huge is more than acceptable.”

Struggling to ignore her brother’s lecherous smile, Twilight yanked her gaze away from—well, if she admitted that she’d had her eyes locked on Celestia’s forty-foot Cutie Mark for the past fifteen seconds, that’d be the same as admitting that Shining was right.

Then again, no other pony but her had been humping Celestia’s nipples like there was no tomorrow just minutes before. Her cheeks flushed madly, but with her thighs already damp with arousal, Twilight was happy to just give a noncommittal grunt while hoping that Shining didn’t notice.

“Welp,” he said. He gave her a quick hug. “Sounds like Cadance is calling me. Better make sure the market district isn’t completely destroyed.” He snapped off a salute and grinned. “Later! And don’t forget—enjoy the show!”

Twilight turned back to her growing mentor, who’d added on another fifty or sixty feet in the last minute alone. She tried to forget the throbbing piece of meat she’d felt against her thigh when he’d hugged her.

He was her brother, for goodness’ sake! But...she’d never known he was that big before. And suddenly, given the context, dozen-pony orgies with Cadance didn’t seem too unappealing…

Twilight slapped herself back into reality. This was no time to be daydreaming about sex and possibly incestual orgies.

She had a giantess to pleasure.

Growing Pleasures

“O-oh, yes.” Celestia’s moans and half-gasps echoed through the emptied streets of upper Canterlot. Her massive body jerked and twitched as, with each passing moment, her pleasure swelled within her. “O-ooh.”

Her massive wings, each one more than three hundred feet long if she extended them fully, quivered in anticipation. She loved it all: the tightness, the power, the feeling of more and more and more.

She could feel her little ponies eagerly lapping at every exposed corner of flesh on her body: her huge, throbbing nipples; her warm, spasming clit. A few ponies with a more interesting fetish had even taken to humping her feet, while a good dozen others had begun to massage her enormous, pillowy ass. Celestia felt her eyes open wide as she felt one pony’s body prodding up against her huge puckered asshole, then moaned as another squirmed a few feet into her marehood.

“Ooh, yes,” she moaned, rumbling in pleasure. “Yes! Please your princess!” Dreams of lust, fantasies of power and pleasure she hadn’t dared exercise in a millennium leapt within her as her blood sang with energy. With a cry that split the skies, she threw her head back and came, a waterfall of feminine juices rivaling Neighagra Falls in size cascading from her spasming marehood. All beneath her were drenched in sweet alicorn nectar.

Her voice hitting a high note of pure, ringing pleasure, Celestia let the growth take hold again. She stumbled, a shock wave of carnal joy riding whiplash through her spine as she nearly doubled her size again, going from six hundred and fifty feet to nearly a thousand feet in height in mere seconds. The ponies beneath her watched in awe as she stumbled again, her gargantuan foot falling outside of the city limits and finding purchase on the ground below.

Still shuddering as the heat from her last orgasm turned to the mounting ecstasy of her next, Celestia groaned and leaned her back against Canterlot Mountain. A small avalanche began between her shoulderblades and was swiftly stopped when the cascading boulders reached her big, growing ass. Her growing hips and rump stuck out massively around her tapered, toned waist, and her now relative T-cup breasts hung almost all the way down past her stomach, her twenty-foot nipples quivering in the warm night air as her breasts smushed against her chest.

Back down on the ground, Luna was panicking. She’d expected Celestia to at least have the good sense to leave the area by now, but if anything, her sister looked ready to fall back across the city. Her wings flared out behind her and she swooped toward the ground.

“General Armor!” she said. Her fall broke into a light jog, and she stopped a few feet away from the shorter stallion. “We’ll need a shield!”

Cadance was with him. “Working...on it!” Shining grunted. His eyes were all screwed up, and flickers of light purple magic were flickering around his horn.

Cadance’s grip around his shoulders tightened. “You can do it!” she said, pulling him toward her chest. “Come on, Shiny!”

A tired grin twisted Shining’s mouth. As Celestia stepped fully down to the base of the mountain, the top of her head just barely visible over the city walls, his horn flared. Luna watched, impressed, as a pink bubble shimmered into existence around the city.

“Astounding,” she said. “I saw your work at your wedding, but I must say again that I’ve never seen a proteomancer of your caliber.”

Shining grunted and offered her a smile. “Thanks,” he said. “That all depends on whether I can keep it up, though.” He blew out a breath and all but collapsed against his wife, the magic around his horn flickering out. “It’ll sustain itself for now, but it anything starts to actually damage it—“

Right on cue, the ground shook beneath their feet. Cadance’s eyes flew open wide. “Celestia!” she said. “We need someone to monitor her.”

“Of course, niece.” Luna clapped a hand on Cadance’s shoulder. “Stay here with him. Make sure he sustains the spell. If Celestia gets as big as I fear she might, his magic may well be tested.” Cadance nodded. Her wings flaring wide behind her, Luna leapt straight up into the air. She caught a residual thermal and glided easily down toward the edge of the city.

It was incredible, really, how much of Celestia was still visible, given that she was standing at the bottom of the mountain. Her earth-shaking groans still rent the air, though Shining Armor’s bubble reduced their volume significantly. Both her hands were back at her crotch, masturbating fervently as she added dozens of feet to her figure by the second. Her forearms, turned up toward her face, squished against the bottom of her enormous jugs, tonnes of titflesh oozing out around her biceps.

From her position just above and behind Celestia’s shoulder, Luna could even make out her older sister’s nipples quivering in pleasure, fully erect in the warm morning air. Every pump of Celestia’s fingers against her crotch matched with a thud of her broad back against the mountain behind her. Small avalanches began around her shoulder blades and huge, plump ass and hips. Luna watched in awe as her sister swelled up until her shoulders were fully above the city below.

The beating of wings reached her ears. Luna glanced over her shoulder and saw Twilight flying toward her, looking out of breath. Luna let herself drift down onto a roof, and Twilight followed.

"Enjoying the show?" Luna asked. She gestured toward her sister's enormous form. "It has been too long since I have seen Celestia truly embrace herself like this."

Twilight's cheeks blushed less, now that she'd all but openly humped the massive princess' breasts before, but they blushed all the same. "I...I guess," she said. "It really is something. I just, um, was wondering why she has to get so into it."

"Pardon?"

One of Celestia's low, rumbling moans split the air. Her massive form suddenly surged upward, adding hundreds of feet every second. She soared past one thousand feet, reached one thousand five hundred without breaking a sweat, and flew toward two thousand with the glee of an overeager filly.

Twilight shrugged helplessly. "That."

A smile curved Luna's face. "Ah," she said. Twilight's fingers, she noticed, were twitching toward her crotch. The bulge of a puffy, damp cameltoe pressed against the underside of Twilight's clothes, and she knew instantly what Twilight was asking.

She wanted to know why Celestia allowed herself such incredible pleasure—and whether it might be acceptable for her to follow. The poor filly wanted to allow herself to enjoy this, but some restraint, some measure of propriety still lingered. Luna's smile widened.

She knew how to help.

"It's unavoidable, really," Luna said, casually gesturing toward her sister's growing form. "A power like the Sun's is barely containable, and as a princess of this land, my sister must embrace her role as its matriarch. Really, hers is an expression of the power and fertility of all of the ponies beneath her; in a sense, she is this land." As Celestia's towering shadow fell over them, Luna stifled a giggle. "In more ways than one, perhaps.

"Given that this is something so innate to her," she went on, "is it truly so odd that she might embrace it? Such power, such size, energies coursing through her body as she grows beyond mortal comprehension?" Luna shrugged. "What pony could deny that?"

"I...guess," Twilight said. She still sounded doubtful. Another moan of Celestia's set her cheeks burning anew.

"Sexuality," Luna said, not unkindly, "is an innate part of every pony. It is only an invention of the modern age to deny it. Watching my sister now, embracing her size, her lust—it must be intoxicating, no?" It certainly was for her, now that she’d assured the city’s safety. It'd been far too long since she'd seen Celestia let loose like this, and she didn't doubt that she was just as turned on as Twilight.

Celestia's body thumped against the mountainside, and she groaned in pleasure. Up and up she soared, her enormous body growing past three thousand feet, never stopping as it added on a hundred feet in size every second. More and more ponies had gathered by the edge of the city to watch her, some slipping through the bottom of Shining Armor's shield to press themselves against parts of her massive, growing body.

Twilight swallowed. "A-a little bit, yes," she admitted. She bit her lip, her fingers twitching. Luna noted that her nipples were erect beneath her shirt, and saw a bit of dampness spreading through her crotch. In the distance, Celestia was kneading her fifteen-hundred-foot tits, each one hanging down nearly to her waist. Twilight’s pupils were dilated, and she was breathing slightly heavily. Luna saw Twilight's thighs rubbing against each other, the younger mare obviously struggling to keep from giving into pleasure.

Luna was more than happy to make the decision for her.

She swept the younger mare up in her arms and pulled her to her chest, their busts squishing together as a seven-foot Luna leaned down and took Twilight's mouth in her own. Twilight seemed shocked at first, but then she melted into the kiss, her mouth and tongue attacking Luna's as their bodies pressed hungrily together.

Satisfied, Luna pulled out of the kiss. Her arm still lingered around Twilight's waist, hand resting comfortably on Twilight's forty-inch hips. "Did you enjoy that?" she asked gently. The ground shook beneath them as Celestia surged up another two hundred feet.

"Yes," Twilight said, breathlessly. She reached up around Luna's neck and pulled her head back down for another.

As her sister and student were making out thousands of feet below her, Celestia was equally breathless. Her hips pounded against the mountain again and again; by now, she was vigorously humping its side as she grew and grew and grew. Now over four thousand feet in height, she was nearly as tall as the mountain itself.

A small army of pegasi had gathered below and between her incredible asscheeks, each one more than happy to pleasure their titanic monarch. Celestia’s eyes rolled back toward her forehead as she came—and the growth hit her once again.

As the earth shook beneath her, she more than doubled in size. Hundreds—no, thousands of feet—flowed onto her enormous body as easily as breathing. Up and up she went, her head pushing past the lowest cloud layer as she surpassed five thousand, six thousand, seven thousand feet in height. A mile and a half. A mile and three-quarters. Two miles—

Beginning from a thousand feet off of the ground, Celestia’s quarter-mile foot came crashing down onto the farmland below. She groaned, her hips shaking as the side of her waist rubbed against the peak of Canterlot Mountain.

And for miles and miles around, the earth quivered and shook.

Rainbow Dash grunted as she heaved the crate onto the back of the Apple family wagon. “Whew,” she said. “Think that’s the last one.”

Big Mac looked up from his spot behind his family’s marketplace stall. “Eeyup,” he said. “Should be.”

Dash wiped her forehead and grinned. “What a workout. Thanks for asking me to help out.”

“Thanks for helpin’,” Mac drawled. “With AJ visitin’ Brae, just one pony and all this work don’t really add up.” He coughed, brushing his hands off on his shorts. “So I appreciate it.”

“Hey, no sweat.” Dash flexed her bicep and gripped it in her other hand. She grinned wolfishly. “I’d never leave my friends hangin’.” She paused, smirked. “Y’know, actually—”

She let out a sudden yelp and tumbled as the ground shook beneath her. Big Mac tried to catch her at the same instant that her wings flared out. Instead of either being caught or darting up into the air, Dash instead found herself with one wing smushed under Big Mac’s chin and the other twisted awkwardly beneath her arm. The two of them let out a pair of grunts and collapsed to the ground in a heap.

“The f-fuck,” Dash slurred, “was that?” She tried to keep herself from blushing. The fall had finished with her collapsed on top of Big Mac’s prone form, her ample chest rubbing up against his big, beefy pecs. Completely failing not to flush, she twisted her hips to the side and froze when she felt a rather sizeable bulge rubbing up against the inside of her thigh. She planted the palms of her hands on the ground on either side of Big Mac’s torso and pushed herself halfway up.

Big Mac shrugged. Dash’s head twitched to the side when she heard somepony holler out:

“Over there!” A wide-eyed, quivering stallion was pointing at something in the distance, past the edge of the marketplace. “O-over there!”

The two of them turned to look. Dash’s eyes widened, and she heard Big Mac gasp. There really wasn’t any other reaction to be had.

For all its reputation as a backwater town, Ponyville was actually one of the closest settlements to Canterlot itself. On a clear day, a pony on a tall roof or on the edge of town could see all the way to the base of the mountain. The peak, except on days when it vanished into the clouds, was always visible as the tallest object for miles around. Except, it seemed, for today.

At first, Rainbow Dash wasn’t quite sure what she was looking at. A thick mass of white had covered the front of the mountain; at first, it just looked like winter had come early. Then she saw the “mountain” twitch and realized that, not only was it only one of two white masses, but that the original mountain was still visible behind it.

Dash felt her throat go dry. She heard Mac gulp. Their gazes moved up...and up, and up. She looked up past the top of the mountain and swallowed when she saw that the mass of white just didn’t stop—it kept going, up far past the top of the mountain.

It took a moment for her to recognize the massive shape as a person. It took another moment for her to recognize the person in question.

“Princess Celestia?” Dash whispered, shock dripping from her every syllable. Below her, Big Mac whinnied in surprise.

The Princess—if it was her, that is, and not some giant monster that just looked like her—towered over the landscape. The mountain itself just barely reached the tops of her thighs, and as Dash watched, her nostrils flaring, the monstrous Celestia opened her mouth slightly and slid the inside of her leg across the mountain’s peak. A good five seconds later, Celestia’s moan, a low, rumbling sound that echoed through the air, reached Ponyville. Dash’s pupils dilated, and she felt her heart beat faster.

A titan of size and power, Celestia loomed above the mountain and farmlands below her like...well, like a goddess. Rainbow Dash gulped, a heat stirring in her loins as she watched Celestia’s massive breasts sliding past one another as the princess rubbed her enormous clit along the mountaintop.

Dash took a deep breath. A feeling of warmth, of awe, and of lust filled her lungs. Just looking at that titanic figure, she could feel something stirring within her and setting her mind and nerve endings alight. She’d never seen anything of such raw size and sexuality before.

She’d never been more turned on in her life.

Celestia’s whole body was trembling as she lowered herself onto the peak. Her breaths were coming in short, sharp spurts. She steadied herself, squatting, her bare feet gouging out deep canyons in the earth below. Her lips quivered as the very top of the mountain brushed against her aching pussy.

It’d been so long since she’d done this. Too long. A rough-and-tumble in an unseen valley, a lustful tryst with an unsuspecting tree...none of that compared to the sheer, unrelenting eroticisim of fucking one’s self with the peak of a geographical landmass.

A few hundred feet of Canterlot Mountain slipped inside of her dripping, needful cunny. Celestia whimpered as her thighs squished against her quads. Her big, soft ass pressed against the side of the mountain, leaving deep depressions anytime she shifted her weight. It felt so good to feel the mountain stretching her already; it was so much better than her own fingers, however skillful they may be. She closed her eyes and gave a little cry as she forced herself a good thousand feet down the mountain, her pussy winking madly as it clenched around the full size of the summit.

She stroked her belly gently, moaning under her breath as she felt the burning tightness inside of her. She was at the limit of what she could take, and hadn’t even pushed her way down more than a quarter of the mountain. “Yes,” Celestia groaned, savoring the girth of her impromptu dildo. “Ooh, yes.”

As a side-branching peak brushed against a particularly sensitive part of her cunt, Celestia’s whole body shivered and—once again, began to grow. She moaned deeply, humping the mountain as she grew and grew and grew, passing two miles and nearly reaching three. Her marehood widened, opened, gaping impossibly wide as it swallowed more and more of the mountain below.

Shining Armor watched, mouth agape, as a pussy the size of Canterlot Palace winked down at him.

“This isn’t happening,” he breathed. “Holy crap, this isn’t happening.”

A surge of feedback burst out from his shield, and he shuddered. Bolts of electricity lanced down his horn, and he felt his magic spasm. Earlier, he’d prayed that his magic would be enough to protect the city from Celestia’s incredible weight. Now, it looked like it was being put to the test.

If this was a test, though, it was one that he was failing.

Shining Armor groaned audibly, twitching as his magic struggled to hold up millions and millions of tons of weight. All around him, similar groans filled the courtyard. Instead of pain, though, these reflected pleasure; more than one citizen, rather than rioting, fleeing, or panicking, had broken down under the sight of the massive Celestia pleasuring herself with the city itself—or rather, as close as she could come to the city, seeing as Shining’s bubble stuck out just far enough from the side of the mountain to prevent her from descending over it. Moans of pleasure, of orgasm, and of mindless sex filled the air around him.

Shining let out a cry of pain as Celestia’s growth suddenly surged, adding on another five hundred feet and untold thousands of tons as easily as breathing. The part of the shield directly above them began to groan, cracks spiderwebbing across its surface.

“I—can’t,” he wheezed. “She’s just—too big.”

He felt Cadance’s hands on his shoulders. “You can do it,” Cadance said seriously. “I believe in you.”

He tried to grin. “Sorry, Cadance,” he said. “But against something that huge, just one pony can only do so much…”

Cadance frowned worriedly, then winced as a particularly large groan set a canyon of cracks seeping across the center of the shield. “There must be something.”

Then her eyes lit up. “That’s it! Just one pony!”

“Honey, what’re you—” Shining found himself cut off suddenly as Cadance mashed her lips against his. He all but melted into the kiss, his tongue dueling with hers—then pulled out of it violently, sputtering.

“What the hell!” he said. “You could’ve broken my concentration! And then what would have happened to you!” His eyes were wide, wild, afraid.

“But I didn’t,” Cadance said. She pointed up at the sky. “Look.”

Shining did. He gaped. Several of the smaller cracks were healing, and even some of the bigger ones looked less severe. His magic felt...steadier. Stronger. Deeper. He met Cadance’s eye.

“Our love served us a source of power once before.” Cadance cracked a smile. “What’s the harm in trying once more?”

Shining thought again of the incredible weight above him—and then pushed it out of his mind. He couldn’t think about that. He had to trust Cadance. He offered a shaky grin in response. “Okay,” he said. “It’s worth a try.”

His throbbing erection, of course, had absolutely nothing to do with the decision.

This time, when her lips met his, he gave into the kiss completely. Her lips were warm against his, her tongue soft and wet. He let his arms snake around her waist, groaned as he felt her nipples squishing against his broad chest. She leaned forward and touched her horn to his. Suddenly, power surged through him, electricity crackling between the tips of their horns as they kissed.

In the back of his mind, Shining felt the cracks recede even further and smiled to himself. Maybe Cadance was right. This could work out.

It had to.

Shifting her hand to Mac’s thigh to better push herself away, Dash froze when she felt the inside of her thumb brush against a large, throbbing bump in the stallion’s pants. Her legs quivered faintly, and she felt a sudden wetness between her legs.

She swallowed, unable to tear her eyes away from Celestia’s heaving, massive figure. Watching a giantess larger than a mountain pleasuring herself with said mountain had never been high on her list of fetishes—but maybe, she was starting to think, she’d been missing something.

“Fuck,” she said. “That’s fucking hot.”

She could hear Mac struggling to keep his voice from shaking. “E-eyup,” he said. His erection throbbed even harder against her thumb. She could actually feel a spot of dampness through the fabric of his pants.

“How the hell did she get that big?” Dash breathed. Maybe it was the natural outcome of the question she’d wanted to ask Mac earlier, or maybe it was a natural—or magical—consequence of seeing such a gigantic, sexual titan bestriding the earth. Whatever the reason, she could feel her arousal and lust battering against the sides of her clouded mind like waves crashing against a shore. She wanted the sex that Celestia’s massive body so casually oozed out, needed it more than anything else in the world.

And maybe, just maybe, Big Macintosh was willing to provide.

She felt his weight shift beneath her as he shrugged. “I—I dunno,” he said. His low, masculine voice suddenly sounded incredibly hot.

Dash licked her lips. Her thumb and forefinger had begun to trace tiny circles along the edge of Mac’s bulge; as she spread her fingers wide and let her palm rest directly on the python now visibly snaking down Mac’s pant leg, she nearly gasped at its sheer girth. Mac gave a cute little gasp as she gave his stallionhood a squeeze.

“Fuck,” she said again, unable to look away as the distant Celestia positioned herself above the mountain. “What must it be like? To be that big, that huge, that fucking sexy—” She didn’t even realize that she’d spoken the last words until Big Mac gulped and said, somewhat shakily:

“Yeah.”

“Kinda…” Dash’s fingers left Mac’s bulge and moved upward to trace along the outline of his abs through his shirt. Fuck. She’d always known how big he was—no matter how hard he tried, Applejack had said, Mac had never really been able to find a shirt that fit him properly—but now she marvelled at being able to feel his steel-cut abs through the overstretched fabric. Her fingers roamed up another foot or so to the bottom of his pecs. Her fingers curled around it, felt that steel-thick slab of beef, then absentmindedly made their way toward his nipple. Her own nipples, she realized, were achingly stiff and damp. “Kinda turns you on, don’t it?”

Mac shook slightly beneath her. “E-eyup.”

She paused, then glanced down at him. His pupils were as dilated as hers, and he was panting slightly. In that instant, a bolt of electricity seemed to zap between them.

And then she was moaning, grunting, snorting as she tore at his clothes, with him tearing at hers, rolling, touching, squeezing as the two of them gave into their lust completely.

Beneath them, the ground shook.

Celestia was growing again.

Shining let out a groan somewhere between pleasure and pain as the giantess above the city nearly doubled in size. The weight on his shield went up by an order of magnitude—and just like that, he felt it weakening again, the spell retreating into a splitting headache.

“It’s not—working!” he groaned, pulling away and gritting his teeth. “I—I can’t handle it.”

Cadance stared at him, wide-eyed. “You’re sure?” He nodded. She took his cheeks in her hands, then knelt her forehead against his. “Then...that’s that.” Her voice was soft and small. “I’m all out of energy myself.”

Shining chuckled, shaking his head sadly. “At least there’re worse ways to go,” he said. “Getting crushed beneath the ass of a rampaging goddess is, as far as dramatic deaths go, pretty damn hot.”

Cadance giggled, her hands wrapping around his waist once more. He groaned as he felt her squeeze his tight ass, then wrapped his fingers through her hair and took a good, long sniff of her scent.

“If that’s how it’s going to be,” she murmured, nuzzling into his shoulder as he stroked her mane, “then we should at least enjoy the moment.”

Far above them, Celestia’s mountainous marehood was slowly drawing into position above the city. Given her size, her lack of speed wasn’t surprising; any “normal” speed movement may well have broken the sound barrier. Great globs of femcum fifty feet across dripped down onto the bubble below, its bright pink surface shaking with each collision.

It took only seconds for them to strip off each other’s clothes. By the time they were done, Shining had taken Cadance in his arms, his throbbing erection pressed tight up against the side of her thigh.

“Gods,” he murmured. His finger trembled as it drew small circles on her back. “You turn me on.”

“More than that?” Cadance asked, nodding up at the titanic figure above them. Shining cracked a smile.

“Always.” Then, his teeth latched gently onto her earlobe, he squeezed her rear and eased himself inside of her.

Cadance let out a cute cry as Shining entered her. His warmth was one of the most familiar feelings in her life; she clung to it, embraced it. Her warm insides spasmed, wrapping themselves around Shining’s length as he entered her again and again. His stallionhood, larger than most any other stallion’s in the nation, filled her more completely than anything she’d ever known before. She could hear her own voice crying out, shaking with joy and pleasure as he stretched her with his girth.

She felt herself shaking, her breasts heaving as she felt herself go over the edge. “Oh—oh—ooh!” Her whole body shook, lurching in Shining’s hands as her orgasm hit. She jerked forward and latched onto his bare shoulder, her lips suckling onto the bare skin she found there. He just groaned, his tool throbbing inside of her, and withdrew for another thrust.

Far above them, Celestia’s monstrous marehood had paused in its ascent. The image of the princess’ titanic ass, a pair of round, soft globes so large as to blot out the Sun, filled the entirety of the Canterlot sky. A long, low moan deep and rich enough to measure on the Richter scale shook the ground beneath them.

And then she began to descend.

Cadance’s breaths came short and choppy, her lungs feeling like they were burning as Shining speared her on his member again and again. She could feel her spasming cunny filling with his precum. She let out a cry each time he bottomed out inside of her, his heavy, churning balls slapping against her thighs with each thrust.

Her body twisting, grabbing, panting, Cadance shifted her weight and threw her arms around Shining’s shoulders. The ground was beginning to darken around them now, Celestia’s descending marehood the only thing that mattered anymore—to most ponies, at least. To Cadance, Shining’s member was her whole world, his warm precum the ocean that filled her warm, aching marehood.

She let out a whimper as she felt him bottom out inside of her, then met his lips in her own in one final, heavy kiss. She took his tongue in her own and squeezed him to her chest as he pulled out and thrust into her one final time—

Shining let out a grunt, a roar of pleasure as his shaft bulged impossibly wide inside of her. Cadance cried out, moaning as his swelling girth stretched her out wider than she’d ever been stretched before. Ropes and ropes of thick, hot cum started to flood into her, his tool spattering every square of her insides with globs of its hot, creamy batter.

Cadance was screaming, and Shining was screaming too, their pleasure mixing in a single hoarse cry as their conjoined orgasms blotted out the rest of the world. Their bodies shuddered and lurched as one, Shining’s cock throbbing as more and more of his seed erupted inside of her. She felt her stomach beginning to swell, her womb filling up with more and more of his cum, his heavy balls slapping against her rear as his musk and scent filled her lungs. She grabbed a hold of his mane and pressed herself even tighter to him, their worlds merging as pleasure soared within them.

Their horns touched. Lightning crackled. Shining’s voice swirled with the roar of his magic as the force of their orgasm, the force of their love, joined with his spell. His horn blazed with power. Far above them, the shield glowed a bright, joyous pink. The cracks were receding fully. The wounds were being healed, the bastion standing tall once more.

And then, as Shining’s next load of cum began to splatter against Cadance’s walls, the shield did something unexpected.

It began to expand.

Celestia was in heaven.

She couldn’t remember the last time she’d allowed herself to get this big. She’d nearly breached a paltry mile a century or so ago, but after reports had flowed into the capitol about giant monsters around the mountains of Vanhoover, she’d resolved to keep to the sub-thousand range. Being hundreds of feet tall had its perks, admittedly, but it was absolutely peanuts compared to pleasure that came with a size measured in miles.

Celestia squeezed her heavy breasts, which by now were hanging a few hundred feet (“inches,” to her) below her waist. They stuck out in front of her by about a mile each, blotting out the light for acres of farmland below.

Her marehood spasmed, and Celestia groaned as another wave of pleasure stirred at the base of her spine. Canterlot Mountain felt so good inside of her; she’d just bottomed out on top of it. She savored every twitch of its crags and peaks inside of her, slowly pumping her hips up and down to keep the sensation of fullness. Her massive thighs, which were half-covered by the part of her rump that had folded over her haunches, her fat, rounded ass-meat bulging obscenely behind her hips.

Unfortunately, that sensation of fullness was short in lasting. Just as Celestia felt the mountain bottom out inside of her for a second time, she felt the growth coming again. The Sun’s power sang in her veins as more and more magic swelled up inside of her chest, pushing her to greater and greater heights. She swayed, stumbled, her magnificent plot thudding to the ground as her city-sized feet were splayed out across the countryside.

She let out another moan, her body shuddering as the growth rode rampant over her. She passed four miles without breaking a sweat; then five; then six, her size nearly doubling again as the force of her orgasm rode through her. Her massive plot expanded across the farmland below, covering and crushing everything in its path.

Or at least, it would have, had a strange pink “carpet” not suddenly flowed out from beneath her. Celestia barely had the time to register its appearance before the pleasure surged inside of her again, pushing her past seven miles to eight. Even sitting down, she was head and shoulders above the clouds, and her magnificent breasts sat proudly in her lap. She cradled them in her arms, her lips twitching when she found that she couldn’t reach all the way around them anymore.

It was impossibly, incredibly hot.

But she still wanted more.

Shining Armor’s shield had done its work. Twilight and Luna, eyes wide, watched in awe as it spread out across all of Equestria. From horizon to horizon, the whole land was engulfed in a strong, glimmering light.

Twilight yelped as she felt a warm suddenly surge around her body. Then she stared in amazement as a shimmering pink bubble formed around her, then “popped” into a form-fitting shell barely paper-thick. She lifted a hand and marveled at how light it felt.

“Captain Armor has done good work,” Luna said. She held up a fist and grinned. “If these are the shields I expect them to be...then I suspect he’s given me a rather interesting idea.”

“What?” Twilight said. Luna leaned down and whispered it into her ear.

When she finished, Luna left Twilight blushing, but also beaming. “Let’s do it!” she said excitedly.

After stealing a kiss from Luna’s lips—the Lunar Princess felt a surge of glee in her chest at helping her sister’s student to open up so easily—Twilight opened her wings wide and took off. A second later, she vanished in a flash of light. Luna followed.

Across the surrounding area—starting in Ponyville, and some nearby villages but spreading out as Celestia grew to cover them—they roused the awestruck and often horny townsfolk to help pleasure their growing princess. Dozens of lustful ponies, driven by their peaking arousal and love for Celestia, took to the skies and roads. That soon swelled to hundreds, and then thousands, as Celestia grew and grew, her titanic form swelling to cover the entire countryside.

All wanted to see Celestia grow. And all wanted to help her get there.

Celestia’s titanic form writhed in pleasure as she passed twelve miles in size. Her marehood spasmed again and again, the sheer sensation of growth more than enough to keep her arousal in overdrive.

Lying down as she was, her feet stretched almost halfway toward Ponyville, and her head had begun to stretch toward the northern woods above Canterlot. The mountain itself was lost somewhere in her cavernous marehood, her gigantic rump covering the countryside for a good mile in all directions. As she groaned, shifting her weight as her arousal peaked again, her swelling rear rolled over farms, outposts, and houses alike, growing and covering everything in its wake.

More and more ponies, brought from all over Equestria by Twilight and Luna, had eagerly leapt onto her gigantic form, eager to pleasure her. Celestia’s lips twitched, her eyes squeezed shut, as thousands of tiny bodies rubbed, humped, and massaged her most sensitive spots. A small village had gone to work rubbing and squeezing one of her nipples. She hefted her breast in a hand, squeezing her titflesh between her fingers and moaning as a surge of pleasure soared up her spine.

How amazing this felt, she thought to herself, to be lifting so many of her subjects on just a nipple. How wonderful it was to know that so many were on her body right now. She didn’t know, really, what they were here for, but memories of Twilight humping her bust flashed through her mind. Her cheeks flushing, Celestia let out an earth-shaking groan, her back arching as the memory of her horny student sent her into orgasm again. A flood of marecum burst from her spasming walls, leaving a new, sweet-scented lake down the road from Ponyville.

She panted, her pale cheeks flushed a rosy red as she turned the memory over in her head. Twilight? But she’d never...hadn’t even thought of doing anything like that. Well, she’d thought of it; it hadn’t been unknown; but she’d never...quite…

The image of Twilight’s busty form, of her big, juicy rear just turned Celestia on even more. Another moan, low and throaty, shook the countryside as she more than doubled in size to thirty miles in height. Earthquakes erupted across the land with every shift of her toes; now at several hundred trillion tons, Celestia held enough power in her little finger to destroy all of Equestria if she chose.

But she didn’t; she couldn’t. How could she, when it had given her this much pleasure? She rolled over onto her stomach, then gasped when she felt her weight driving her bust into the ground. Deep craters, each one at least five miles across, were left in the earth below. Her massive breasts, now large enough to prop up her entire upper body and some of her hips, throbbed in time with her marehood. Celestia cried out in pleasure, humping the ground of Equestria itself as her sensitive tits echoed with sensation.

The pleasure drove her up to new heights; she passed forty miles and leapfrogged over fifty. Sixty miles became seventy. Her body covered all of the Equestria heartland; just one of her toes could have swallowed up a small-sized city. But she wasn’t about to stop there.

She was enormous, some part of her mind foggily thought. Far larger than she’d ever been. Even in the old days, she’d never dreamed of getting this big.

Why hadn’t she? This feeling was like nothing else she’d ever experienced. Celestia smiled to herself, her fingers tracing small circles around the outside of her breasts. She began to rub her thighs together, her thigh gap vanishing completely as her country-covering hips widened and her similarly sized butt swelled up toward the heavens.

But she wasn’t exactly country-covering. Not yet, at least. As she felt the growth beginning in her again, though, Celestia had a feeling that that was about to change.

The efforts of her subjects had long since ceased to provide any real stimulation, at least beyond her knowledge of their existence. But now she truly grew past them—past their entire world—as her growth slowed, paused, and then tripled in pace. She passed by one hundred miles, then two hundred, barely stopping for breath as her titanic body grew and grew and grew, covering most of northern Equestria as her breasts and thighs grew out to crush whole cities beneath them. Only Shining Armor’s lust-fueled shield protected them; without it, Equestria would have been ground to dust beneath Celestia’s nation-sized ass.

She was visible from space now, the very top of her horn poking up into the lower atmosphere. Something deep in her body rumbled, and she exploded with size, growing to a thousand miles in height in the blink of an eye.

Now a full million times larger than a normal pony, some part of Celestia’s mind pondered slowing down. But the power of the Sun was in full runaway mode, and it wasn’t about to stop here. Celestia groaned, holding up a hand as her body shook with the force of another orgasm. Far, far below her, she could see the island of Manehatten. It and a few cities dotted the ground, tiny beneath even one of her fingers. Her wings flared wide, sending hurricane-sized gusts of wind through the atmosphere as her lust returned with a vengeance. Her hand flexed into a claw, gripping the land around Manehatten as she rode her orgasm out to the finish line. She doubled her size again, moaning and squirming as her mane dragged across the surfaces of at least a dozen cities.

Had she been standing up, the atmosphere wouldn’t have even reached her shins. Celestia could more than see the curve of the planet now; at nearly three thousand miles in size, she felt like she could reach out to the Moon above her and grab it. In reality, it was still many times further away, but she was so big now, and the planet so small, that it felt more possible than ever before.

She groaned, sitting up, as her rear swelled outward to crush the continent beneath her. Her feet dipped into the ocean at Equestria’s western shore, the water lapping against the tops of her toes. She gently humped the mountain range lying beneath her crotch, the slight bumps barely providing enough stimulation to set her off. But that was okay. Her growth was more than doing the job.

She began to grow again, her body crushing wide swaths of the planet beneath it. She was officially longer than the planet was around, now; she could curl her body around the equator and meet her toes on the other side. The sensation of grinding her body against the Earth, rubbing it between her nearly planet-sized cleavage, was almost too much for her to bear.

Celestia shifted her weight until she was sitting once more. Her massive plot covered nearly a third of the surface of the entire planet, one enormous asscheek swallowing up whole continents as she grew past thirty thousand miles. Now heavier than the planet below, she felt her growth slowing, almost stopping.

But she wasn’t done yet—not nearly. Her vision blurred, her blood pounding in her ears as she felt the planet turning between her legs, rotating her to face the Sun. She felt the celestial body calling out to her, teasing her as she grew larger and larger to meet it.

The world fell away behind her, apparently shrinking as she grew large enough to fit it comfortably between her breasts. She floated in the void, drawing toward the Sun as she grew larger and larger to meet it.

It was huge, bigger than even she could comprehend at her current size. She could feel it teasing her through the connection they shared, encouraging her to grow, to get bigger, swallowing her up in the twin sensations of growth and lust. She felt it fall into her arms, a raging ball of white-hot fire that, somehow, merely tickled her, the contact setting off every pleasure nerve in her body. She humped it furiously, cumming again and again as she drew the Sun ever closer, the growth singing out in her planet-thick veins as she grew past, really, anything she’d ever dreamed—

—she was awash in an ocean, a sea of pleasure and growth, swelling to ever-larger sizes, her rump, her tits, her every body part throbbing and surging with glee as she got bigger and bigger—

—she was cumming again and again, planet-sized drops of femcum splattering from her clit as she felt her orgasm strike her again and again—

—and then, with a final, shuddering sigh, Celestia passed out.

When she awoke, her head was hurting. She blinked blearily. Her tongue felt like sandpaper, and her hands were raw. Otherwise, the most pleasurable feeling had invaded her body: a warm, pleasant afterglow, seeping through her veins like honey. Celestia moaned softly as her vision resolved.

“Hello, sister.” That voice sounded familiar. “Enjoy your nap?”

Celestia blinked again, groaned, and swallowed. “Luna?” she murmured. “Wh-what…”

“You passed out,” her sister provided helpfully. “I can only suppose that your combined size and pleasure overwhelmed your conscious mind.”

“Size…” Celestia frowned, trying to get her thoughts in order. The image flashed through her mind of Equestria, shrinking below her as she grew bigger and bigger, past unfathomable heights...of the Sun, steadily growing larger, and then smaller beside her… She shivered with sympathetic pleasure.

“I was...enormous,” she said, surprised at the sound of her own voice. “Luna, how big was I?”

“We don’t know.” This time, it was Twilight who was speaking. Celestia glanced over and up at her faithful student, then flushed slightly when she realized that she was still unclothed. The remnants of her dress undoubtedly lay in shreds somewhere in the wreckage of Canterlot Palace. Still, she told herself, the whole world had just seen her in the nude.

The whole world. “And—was anypony harmed?” Alarm bells suddenly went off in Celestia’s head. “Oh, goodness. I didn’t think—“

“Nopony was harmed,” Luna said calmingly. “You can thank Shining Armor for that.”

“You’re sure?” Luna nodded. Oh, thank goodness. Celestia felt her shaking hands settle. “Still,” Celestia murmured, holding her head in her hands. “Being that big...I must have been…”

“When you pushed off of the planet, we saw you right up next to the Sun,” Twilight said. “From there…” She shrugged. “Everything was kind of overwhelming after that.”

Celestia worked her tongue through her lips, trying to moisten them. “Well,” she croaked. She swallowed, then smiled. “Well,” she said again, her voice stronger and smoother, “that was certainly…an experience.”

“I’ll say.” Shining Armor peered around his sister’s shoulder and grinned lecherously. “You sure gave Equestria one heck of an eyeful!”

He yelped as Cadance swatted him. “Don’t be rude to Auntie,” she scolded. Then, with a thoughtful look on her face, she said, “Although...the next time we have one of our parties, I’ll make sure you’re invited.” She gave Shining’s rump a little squeeze, her other hand still patting her cum-bloated, sloshing tummy. “Seems like my husband has a thing for bigger mares, and more ponies—or more pony—always makes for a merrier time.”

“My thanks,” Celestia said evenly. She smirked wryly. “I’m glad you all enjoyed the show.”

She leaned back and groaned. Her muscles felt wonderfully loose; she was more than content to bask in the remnants of her afterglow. She couldn’t even remember how many times she must have orgasmed. “It’s been far too long since I allowed myself that amount of...enjoyment,” she said, raising an eyebrow at Luna. “Perhaps I should have taken your advice sooner.”

“Perhaps,” Luna said. “And it would appear that your growth has broken down other boundaries as well.” She eyed Twilight meaningfully.

Celestia smiled. It was odd, really, how she’d never really allowed herself to notice how cute her little student was. Well. Not so little anymore; once she grew into her princesshood, she’d undoubtedly tower above her brother. But in any case…

“It would seem so,” she said carefully. She met Twilight eyes and smiled, not unkindly, and made a mental note to talk to her privately later.

Celestia cleared her throat. “I must apologize, though, for my actions. I really did make quite a sight of myself.” She looked a bit abashed. “I do hope our subjects don’t mind.”

“Mind?” Cadance snorted. “They certainly don’t.”

“Oh?”

Luna beamed. “In fact, they were more than happy to aid you in your pleasure. It would seem that Equestria is still as eager to see you grow as you are to do so.” She waggled her eyebrows suggestively. “I’ll wager that more than one stallion has discovered a liking for tall mares because of you.”

“Really,” Celestia said.

“Really,” Luna echoed. A smile twitched at the corner of her mouth. “I daresay quite a few of your subjects will be more than happy to help you reach such heights again in the future. From what I’ve heard, everypony loved seeing you that big—in more ways than one.” She winked. “I daresay we’ll see a notable uptick in fertility rates for a few weeks after this.”

“Oh, dear,” Celestia said. Then she sighed and folded her hands in her lap. “Well, in any case, that’s a relief.” She looked thoughtful. “Though I do wonder why I began growing in the first place.”

“I thought it was odd,” Twilight said. “That you would just start, erm—“ she blushed “—masturbating in the middle of the court.”

“Indeed,” Luna said. “Perhaps a reaction to some kind of food?”

“I had some...chocolates, I think.” Celestia’s nose wrinkled. “From a suitor, I think.”

Luna gave a long, deep belly laugh. “Aha! So there’s our answer. Some poor stallion thought to gain the princess’ favor through her marehood...and wound up with a giantess on his hands instead!”

Celestia laughed as well. “I’m sure he didn’t get what he expected. I wonder if he’s well?”

“I’m sure he is,” Luna said. “You have Prince Armor and Cadance to thank for that.”

“Still,” Celestia said, inclining her head in their direction, “I can’t help but wonder…”

Somewhere in the wreckage of Canterlot Palace, a stallion stirred.

With a pop and a flash of green flame, he disappeared, leaving someone else behind. Groaning, her every bone aching, Queen Chrysalis of the Changelings stared down at her dripping body with some mixture of shock, disgust, and raw fear.

Then she remembered the gigantic princess she’d seen above her earlier and nearly fainted for the fourth time that hour.

What had she been thinking? It was clear that Equestria was no place for any self-respecting changeling. She was power-mad, not suicidal. She’d been made a fool of. The mere fact that that prissy little princess had been able to grow to such ludicrous sizes, but had allowed herself to be “defeated” the last time the changelings had invaded…

Chrysalis’s hands shook as she cleared her wings of the remnants of Celestia’s hot, sticky marecum. As far as she was concerned, Equestria was off-limits. Out of bounds. Against something like that, what could even she do?

She took off into the air, slightly unsteadily, and tried to make her way through the city’s airspace as quietly and as quickly as possible. Maybe the changelings could invade another, safer country to gain the love they needed. Yes. That was it.

Perhaps Gryffonia. Or the Dragon Empire. Much, much safer choices.

Whatever the case, Chrysalis told herself, she could not conquer Equestria. A shiver went up her spine, and she angled for the Badlands.

The instant she got home, she headed straight for her Breeding Room and had her drones rail her for hours, crying out in pleasure each time a shaft penetrated her, and privately imagining them to be the snow-white fingers of a massive pony monarch.

As she lay in her twelve-foot bed, drone seed slowly dripping from her cunt, Chrysalis silently wondered whether Equestria might be interested in a diplomatic marriage. She shivered as she remembered the feeling of being used in that way again. It was so disgusting, so peasant-like, so beneath her...and yet so incredibly hot.

No invasions necessary, she told herself. Just a ring, a wedding, and a mare larger than her wildest dreams. A smile on her face, and a full-sized pillow clutched to her chest, Queen Chrysalis slowly drifted off to sleep.