Aspects and Domains

Aspect of Fertility

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It is now known that alicorns have not one, but two domains of power—a primary and a secondary. At least one is realized upon ascension (for that is what triggers it in the first place) but the second may lay dormant for decades, centuries, even millennia before it awakens. The reason why this happens isn’t fully understood, but one theory is that it is a safety mechanism of sorts, a failsafe of destiny that waits until the time is right. Certain magics or states of mind have been found to contribute to this protective dormancy, and these barriers may be active without even the alicorn’s knowledge. In fact, before this writing it was not even postulated all alicorns have two domains, and as a result, some have gone impressive spans of time without realizing their true potential.

However, it also should be noted that in these instances of extended inactivity, the alicorn’s second domain was not found to be lacking. It may never actually be known for certain what awakens a secondary domain, but it is this author’s theory that, like primary domains, secondaries merely require a simple trigger, requirement, or catalyst, to be released.

If this is the case, then that trigger could range from something as complex as creating a new spell, to something as simple as adopting a certain mindset.

On the Physiology of Alicorns, Chapter 6, by Princess Twilight Sparkle

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It was a peaceful summer evening in Canterlot. Princess Celestia was lounging alone in the royal bathhouse after a grueling day of meetings and legislature, her cares slowing melting away under the soothing warmth of an incredibly hot bath. She was wearing a modest one piece swimsuit for posterity’s sake, and her tall frame was tightly snugged up with only the slightest bit of cleavage showing. Her hourglass figure was on full display, however, and her large thighs were gripped lightly by the strong elastics while her cutie mark just barely appeared visible through the fabric.

Celestia let out a long, drawn-out sigh. It had just been one thing after another today—whiny delegates, entitled nobles, pompous ambassadors, stubborn civilians, confusing messes of paperwork, on and on and on. She hadn’t even gotten a chance to eat lunch she’d been so busy, and it was looking like it was going to be more of the same tomorrow. Even the sun had been difficult to raise and set today, and the whole mess of a day had left her limbs feeling like lead and her mind stretched out like taffy.

“Urrrgh…” Celestia slumped back and tried to force herself to relax. She hadn’t even said good evening to Lulu before fleeing to the bathhouse and kicking everypony out. She hated skipping out on one of the only times a day they got to spend time together, but right now she needed to be alone. She just wanted to soak and forget about everything that’d happened today, and the only reason she’d see anypony was if they had a bottle of wine with them.

It wasn’t usually this bad. She’d never been able to deal with days like this very well, but this was just ... the perfect storm of suck. Nothing had gone right at all, nopony seemed to be willing to work with her, and to top it off she didn’t even feel right. Oh sure, she could handle one or two sticking points in her daily routine like anypony else, but today was different somehow. It was hard to explain, but the best way she could describe it would be that she felt... floaty, and while she’d normally just take a good long nap to sleep it off, her mind was too restless right now.

“Why do I feel so off,” Celestia muttered. If she didn’t know better she’d say she was getting sick, but alicorns didn’t have to worry about things like that. She and her sister were always in the pinnacle of health, their state of being remaining the same year after year, a pair of constants in a world of change. Well, actually, it was more like a quartet of constants now with Twilight and Cadance, wasn’t it? But that wasn’t something to be unhappy about. The more the merrier, as far as she was concerned.

Celestia stared up at the ceiling with unfocused eyes. “Night and Dreams, Love and Sex, Friendship and Magic… and me, with the Day.” She couldn’t be happier that those three had grown into their power and now held mastery over their dual domains, but a small part of her wondered why she still had only one. She was technically their lesser now because of it, and while none of them would ever admit such a thing (or likely even see themselves as such) it didn’t stop it from being the truth.

“How quickly things can change...” Celestia wasn’t sure how she’d feel if any of them did try to claim superiority over her, but the longer she thought about it, the more that she realized... she wouldn’t care in the slightest.  She might even welcome it, in fact! She’d had the throne to herself for one thousand exhausting years, so if somepony else wanted to take the reins from her, they could have it with their blessing.

“Maybe this is a sign,” she thought aloud. “A sign to let things change. I’ve been doing this for so long, and carrying this burden by myself has gotten so old… do they even really need me anymore?”

This was the first time Celestia had ever thought such a thing. She’d always felt like Equestria had needed her, but now with three other princesses around, she might actually be able to let the others take some of the load off. She should talk to them and see what kind of responsibilities they’d be interested in taking; maybe then that way she could take a step back—

And of course, as fate would have it, that thought process was exactly what destiny had been waiting for.

It started as the sudden sensation of her belly being stoked with warmth. Initially, she mistook it for an errant water stream glancing her body, but then her plot began to feel squeezed, as if certain parts of her body were crawling forward of their own accord. The stretchiness of her swimsuit began to be tested, her already bountiful hips becoming pinched and tugged on. Wiggles and thumps fluttered in Celestia’s belly that sent a shiver through her, and on reflex she groaned lovingly while her womb rounded out in front of her. The one piece began to tightly grip her blooming shape even more, following her increasingly-pronounced curves as she grew outward in every direction, and every tickle she’d feel in her her tummy would make her shiver and coo.

Celestia’s mind grew foggier as the process continued on. The strange flush of warmth flowed through her as her already bountiful hips started to lift her out of the water. Her meaty, ivory thighs were now softening, pounds of new celestial plot slowly leaking out of the swimsuit at a rapid rate, the whole piece of clothing riding higher and higher on her rounding curves. The elastic stretched and pulled even more, her cutie marks creeping out to be on full display, and shortly after her widening thighs pushed the fabric up to past her hips. More and more of her cleavage began to reveal itself as her breasts began to grow as well, and it wasn’t long before her modest swimsuit left very little to the imagination.

Celestia could feel something twitch in her chest as whatever sensation had been rolling around in her hips pushed north. A groan came from her throat as It gently flushed into her bosom, making the teats that protruded from her elastic swimsuit begin to twitch. There was a foreign sensation welling up behind them, something aching and begging for release. Unconsciously she kneaded them through the suit, allowing a wetness to leak through that wasn’t from the bath. With every soft stroke her breasts stretched larger and firmer, the areola getting round and puffy as they swelled against her palms through the suit.

She felt a sudden twinge that jerked her forward, and a milky liquid began to flow out at last. It soaked her fingers right through the suit, her teats shuddering in her palms as the valves opened wider and wider. Her mind and body went abuzz as her tits swelled their way through the alphabet, the neck of her suit gradually being pulled down to reveal more of her snow white flesh, her bosom rocking about with each hardy shake of growth. Her arms were lifted and pulled forward with every healthy release, but every time she milked herself, her breasts would only feel fuller.

“Oohhh…” The long sultry words of pain and pleasure leaked from her mouth. Her plot was  becoming tightly pinched now, a sensation only made worse with every throb of her growing womb. Every beat of her heart jittered her insides, every shake pressed her belly just a bit bigger, causing the swimsuit to grip her rear that much more. Celestia’s grunts and moans echoed through the bathhouse, the roundness of her midsection becoming ever more apparent as the strengthening surges sent waves through the water. Slowly her belly pushed its way forward as an obtuse mound from her silhouette, the mound of freshly grown ivory landscape slowly rising up from the tub’s water line like an island out of the ocean. Suddenly, she squeaked in surprise as a bug bite pressed against her swimsuit at her writhing stomach’s highest point. Said bug bite then began to wiggle with such intense vigor that it pushed outward with a faint POP,  and her now-protruding navel surged in size from the internal pressures.

Celestia’s entire being was ablaze with pleasure. Her body’s growth kept shifting about underneath the suit, her belly being rubbed and pulled and rubbed and pulled. More and more of her voluptuous features were emphasized as the fabric molded onto her engorging girth, her belly button pressing hard into the highest point like a mighty peak. Her breasts were squeezed and smooshed as milk leaked out from every crack it could find, and her belly just kept pushing out ever-farther, eventually starting to peek out from parts meant to wrap around her crotch. Her plot was reddening and chafing under the grasp of the suit, and her mountainous tits were threatening to burst free from the confines that dug so deeply into her canyon-like cleavage. With every passing moment the pressure inside the womb grew greater, greater, and still greater, the ambient magic radiating off her in visible eddies that licked at the air like tongues of flame.

SNAP!

Celestia’s suit began to rip, slowly, ever so slowly as her belly continued to burgeon forth. It was like a great yellow thong now, tugging and pulling at her plot until the crease dug deeply into her rump, a sudden jerk wobbling her hips and letting the fabric split right down the middle. Her foal-bearing hips spread even wider thanks to the new room, and the two tight remnants of her elastic swimwear were pressed deeply into the pillowy flesh of her butt. Pounds upon pounds of hefty flesh piled onto her ass and flanks, lifting the enraptured mother ever higher while she hummed her approval. The very summit of Celestia’s belly pounded and pulsed with her heart, steadily rising higher and higher as the water splashed out of the tub from her girth’s heavy sways and thumps. There was an untold number of internal movements visible on the surface of her belly, sending rapturous feelings through her that were only becoming more intense.

S-SNAP! SNAP!

Now the sides of the suit were beginning to rip, each tiny tear allowing even more of her belly to billow forth. They were like a hundred little snowy peaks across her fabric-covered girth, and they only seemed to grow as the tiny mountain ranges of plump flesh pressed together and tore through. Every thump separated more strings as her grand womb gradually filled the tub, and she could only moan as the motions catapulted her senses into euphoria. Celestia’s breasts slowly expanded to properly rest atop her girth, somewhat at least. Her massive areola that had to almost be the size of her head now shredded the fabric and let her teats stick through two ‘small’ holes. Her milk was finally allowed to run free and began to bathe her body in constantly flowing streams. Then the two remaining straps on her plot gave way, allowing her curvaceous hips to break free at last, growing firmer by the second as her entire form shivered and swelled.

Celestia sighed dreamily. Her legs were wiggling and rubbing against each other while that heavy girth pressed down upon her warm lap. Cutie marks emblazoned with the sun were continuing to swell on to greater sizes as her hips and thighs got wider and wider. She cried out in a cracking voice as her belly punched forward again, the remaining strings of the suit being pushed to their limit and digging into the small of her back. Her womb was alive and moving with life now, each little one pushing and pressing for more room inside her, and holes began to open up all over the remains of her swimsuit to let her white flesh bleed through.

RIIIIIIP!

Her body gave a mighty throb, her form flexing with the force of an uncontrolled climax. The muscles stretched over the womb that could swallow the entirety of her personal guard tingling with visible strain as it vibrated in the water. The rolling waves of pressure swimming through her thickened flesh as her gut burst forth from its confines in a storm of yellow confetti, spreading far and wide with the strings finally let loose. The suit flew apart in pieces across the room in a storm of noise, her belly swelling until it was a large jiggling island in the ocean of her bathhouse. Celestia could feel her insides churn with life and movement as her heavy breasts sat atop her unbelievable womb. Her butt was pressing up against the far wall of the pool now, barely peeking over the edge as it grasped and wrapped itself around whatever or whoever she would sit upon.

Celestia rested there in the water, softly and carefully stroking herself while the warm waves lapped against the shores of her swell. The massive bathing pool was now more like a private tub for her bulk now, and as the seconds passed even it began to feel a tad snug. A strange tightness was building inside her, along with a sudden nipping across her taut skin that made her twitch all the more. She let out a short groan and felt her marehood become flushed and hot; something was happening inside her, something warm and tense and wonderful, steadily building itself up more and more to heights far beyond anything she’d ever thought possible.

Celestia began kneading at her belly, growling in pleasure from the the strange tightness that continued to assail her. Her inner muscles coiled and flexed as the young in her womb rolled about, briefly distorting its spherical shape with their jostling movements and leaving her a sweaty, panting mess. She could feel her pussy clamping down, trying to squeeze the cock that wasn’t there, her arousal climbing with the pressure to further fog over her clouded mind and make her moan with desire. She imagined a titanic stallionhood being thrust inside her, filling her over and over and over again, rutting her relentlessly for hours until it she felt it flare and pump her full of so much seed—

Her womb began to rumble.

“OHHHH!” Celestia’s pleasure-filled scream echoed through the bathhouse as she came. Her entire belly quivered as the pressure reached a fever pitch, and then something inside her throbbed with such a force that it lifted her out of the water. The firmness of her belly changed from a soft orb of life to a ball of steel, and it abruptly rose from the water before crashing back down like a meteor.

KA-SPLOOSH

Water sprayed out in all directions, soaking everything and mixing with the constant spray of dairy from her titanic breasts. Celestia felt the sheer weight of her girth bearing down on her and let it fall completely, now standing properly instead of having her belly rest on her lap. Her womb was so great that she didn’t need to bend over at all to let it rest in the confines of the pool, and it was only becoming greater with every passing moment. A mix of water and love honey ran down her godlike curves as she found her footing, and once she did, she wasted no time in plunging three fingers into her desperate cunny. She could feel the fluttering kicks of her young drumming against the iron walls of her womb, and their swirling movements only served to turn her on even more.

There was another punch of tension, followed by an intense wave of heat that roared through her body. Celestia moaned as a pure liquid warmth seeped into her womb, flooding her core and making her first orgasm roll right into a second. The air was shimmering with magic, surges upon surges of energy flooding into her divine being, almost as if the sun itself were filling her up with incandescent power. Her muscles clenched down hard as orgasm after orgasm ripped through her, and on reflex she pushed her legs apart and leaned back to thrust her belly skyward once more. She felt the weight of her tremendous girth bear down on her, but the magic infused the rest of her body as well, strengthening it like a thick salve of tingling oil.

Celestia began to rise off the ground. She cried out in joy as the magic lifted her up, the seemingly unending waves of power flowing into her. The energy crawled up her back and filled her core, allowing every part of her to now expand with wild abandon. Her arms and legs lengthened, her torso thickened and widened, and in moments she’d doubled, no—tripled in height. Her head was only a few feet from the far wall of the bathhouse, her womb was rising high into the air, and even though the ceilings of the building were high, the amount of space available was rapidly dwindling.

Celestia smiled as her fingers gradually crawled forward to grasp at her womb. She held its warm, throbbing mass in her arms and cooed, then spread her angelic wings and embraced it as best she could. She could feel the lives within shifting and wiggling around, never staying still for an instant, but even as she watched them move she could tell her body was not done. Before long she noticed a completely new sensation creeping in, one that was building with such intensity that it dwarfed everything else she’d felt thus far.

“Oh, yessss… Morrrrre~” Celestia’s vision blurred and she went cross-eyed, her deep, throaty moans steadily becoming louder as a massive influx of squishy heat bloated her belly even further. The tender surface of her stomach stretched further and further, and all the while she groped and stroked herself in ecstasy, her fingers and feathers brushing through her softening fur. Her endorphin-soaked mind flew high above the clouds while she groaned and swelled, the power building up even more, her muscles creaking as they fought to contain her increasing mass.

The energy crept into Celestia’s voice now, lacing her cries with a faint, lingering echo. The poolside chairs shook and clattered from the sudden reverb before being pushed away by her growing form, the ceiling and walls rattling as if being assailed by an earthquake. But even at her giant size her womb still towered over her, its heft so great that it made the pool beneath look like a hand sink. And it wasn’t even done growing yet. Celestia could feel it shuddering, tensing up for another go, the thick heat pouring into it and making it sway back and forth.

 “Yes… YES… YES!” She swooned and screamed with joy, her breasts jetting out cream like a pair of waterfalls. Her entire body was jolted with a sudden force, and every muscle went on edge as she was abruptly frozen in place. Bursts of white light shone from her eyes while a series of tightening pulses rumbled closer and closer together inside her womb, and each one made the power inside her grow stronger and stronger. The bathhouse walls were shaking harder now, the foundations of the pool cracking while the ceiling tiles fell from the rising magical tremors. Celestia’s body shuddered from one last twitch that lanced through her entire sublime form, and then finally, all was still.

“Haa… haa… haa…” Celestia could barely even catch her breath. There was so much power inside her that she felt like a bomb ready to blow, and all she could do was hang there in midair revelling in the sensations. All she needed was a little spark to set off everything off, a catalyst to catapult her into godhood, and while she could tell this was the calm, she had no idea what, how, or when the storm would finally strike.

Fortunately, she didn’t have to wait long.

ZAP

A white-hot lightning bolt struck Celestia’s cutie mark. It travelled up her spine and flooded her mind with pleasure before fusing with her soul. Once there it then flared out through her body in a corona of light, the glow suffused her entire being as if it were one with her flesh, building, bunching, flowing from her core like a single massive ball of burning heat. All the while the surface of Celestia’s womb was shuddering, roiling, wobbling with newfound might as she jerked and thrust her gut into the air over and over. The hot mass broiling in her core gathered itself in full, then slammed its full force into her prodigious womb, injecting it with godly power and making her explode in size.

“AHHHHHHHH!” Celestia could only scream as her advancing form crushed every obstacle in its path. Her hooves pushed up against the far wall and began to break through it. Her horn impaled a row of lockers and then crashed right through into the changing room. Her breasts were releasing gallons upon gallons of milk as they grew, enough to fill the pool she’d been resting in several times over. Her rump was rammed against the wall and yet still kept expanding, her entire form pulsing, pounding, rising, thundering. She could feel the walls and ceiling beginning to bend and give, unable to hold in the sheer might of an ascending goddess, and she could only loudly voice her approval as the sensations translated into the biggest and longest orgasm of her entire immortal life.

The royal bathhouse was shaking. Its walls distended and bulged until it was the shape of an egg—and this egg was jittering like it was about to hatch. There was a scant moment of final resistance, and then with a deafening BOOM, the building shattered into a cloud of debris and dust. A massive white orb filled out the space the structure had left behind, slowly encompassing the entirety of the foundation and then some, eagerly bloating over the sides as more and more young came into being. Celestia could feel the untold hundreds growing inside her, the feelings and sensations of so much budding life making her shout and moan as gush after gush of marecum poured from her pussy. She grew and grew and grew, her breasts coating the surrounding area in thick streams that could flood a city street, her rump swelling until it threatened to cover all of the royal gardens, her body getting so large that she was eye level with the castle’s tallest towers.

On and on and on it went, Celestia growing bigger without end, her womb becoming more and more pregnant. The ponies of Canterlot looked on in awe as they beheld their ruler’s majesty rise up before them, and many of them fell to the ground in reverence. Celestia could feel the power inside her endlessly pushing her to new heights, and while she approved of it greatly, she felt like something was missing somehow—

And in the instant she thought that, there was a CRACK like a cosmic whip. Something pulled the scruff of her neck, and Celestia’s divine form vanished in a blinding flash.