Twilight stood in the middle of the Forbidden Chambers.

She looked around the circular room. Not counting the entrance blended into the wall so smoothly it basically disappeared, there were six other doors arranged symmetrically and drawing a six pointed star on the floor, just like their cutie mark. Each on of the doors had engraved one of her friends' cutie mark, plus one with Twilight's, all made of the same stone as the walls. A soft dark marble that caressed the skin of her naked feet. Enchanted to remain warm and softened if needed, as well as vanishing any dust or dirt that may make its way down there. Not that anything could

The chamber was nigh indestructible and impenetrable for anything less powerful than herself. And over a millennia, there was no creature left who had even a fraction of the power Twilight possessed. She licked her lips at the thought. The only thing really restraining her was her own conscience.

But at any moment, she could just burst out of the chambers up to Neo Canterlot and turn the country, even the world in her plaything. Every living creature an extension of her will, every body available dedicated to her pleasure. And why not? She sacrificed so much to be powerful enough for them. Every pony born in the last millennium owed their existence to her. In return, she didn't owe them anything.

Twilight snapped out of her power fantasy. She didn't realize when she hung her tongue or began stroking herself. She giggled, amused by the thought of anyone outside ever discovering the truth. As the Princess of Equestria, she was so calm, collected and caressing, every pony looked up at her as a leader and a role model. She was their guardian goddess. But down there, in her marble chamber, Twilight Sparkle could be as depraved as a demon. She kept smiling, still caressing her body over with her hands and wings, as her tongue hung down to her neckline, marinating herself in her own lust.

That was her more honest face. That's why she always smiled when indulging herself down at the chambers.

That little daydream actually gave her inspiration for her first visit of the week. Applejack's chamber was made specifically to contain power. It wouldn't matter how much power either of them released inside of it, the room would compensate for that. And Twilight felt a need to play with power. Even if she had become power itself, she wasn't the only powerful creature around. She made sure her friends all could match her, each in a different individual way. Maybe even top her if they worked together.

Or if Twilight willing let them take her. She couldn't stop herself recalling the times she let any of them do as they wished with her body. If she was lust, then she was also her friends' lust. They all had such wonderful desires that made her droll, and harden, and sweat, and crave, and need. Steadying herself out her fantasizing and self pleasure, she walked over to the first door with three apples engraved over it.

It had the same lock enchantments from the entrance. But inside the chambers, Twilight had no inhibitions, so her presence alone was enough to trigger the power and lust spells with just a touch of her fingertip over the door. It slid out of its frame and to a side, leaving the way open for her to cross.

Inside the chamber, it looked like an open field. Twilight looked up as the door behind her vanished, having to put a hand over her eyes to cover them from the shinning of the sun. The sky looked so big and endless, as the green around her extended beyond her sight. It was like back at Sweet Apple Acres, which invaded Twilight with nostalgia for those simpler days. She kneeled down to feel the caressing of the grass on her palms. Some of it was tall enough to tickle her ass and penis as she lowered her hips.

Twilight began to walk, slowly calming down from her pleasure haze, allowing one of the main spells in the chamber to act on her body. It brought down the more complex thoughts and emotions for anyone inside it, bringing them down to a primal state of calm. As such, her steps became slower, letting herself enjoy the mix of warm sunlight and fresh breeze over her naked body, permeating her fur and feeling it on her skin. The sounds around her of threes moved by the wind, rustling leaves and carrying the vegetation's aromas for her to smell, as the grass beneath her feet caressed her with every step.

On her way, she found a three with fresh apples. She took one, smelling it carefully before taking her first bite. The sugary juices and the firm texture of the fruit filled her mouth. She chewed it very slowly before swallowing, taking in every sensation before going for a second bite as she kept walking. Here eyes half closed as every sense on her body was stimulated one way or another. The lust came back, but different. Twilight didn't crave excess anymore. She just wanted to feel pleasure.

After she lost track of time walking, the softness was finally interrupted by a rumbling. Twilight finished her apple and stood at the edge of the grass, where the working fields started. There, working the endless land by themself, was her first success on display. Twilight sat down on the grass to appreciate the body she created for her friend.

Applejack body was changed in order to resist anything time could throw at them, which made them outright invulnerable. They stopped wearing any clothes by the first decade of the change, not really needing any of its protection, and slowly forgetting about their modesty as an effect of shedding their mortality. Though, Twilight didn't stop at just making them invulnerable. Instead, she also made Applejack's body to be able to nourish itself from any nutrient and energy it could catch. Be it the simplest of meals, or even the light of the sun. Through the last millennium, they had grown strong without limits.

The sounds alone they made were huge. Breathing from Applejack was outright seismic. A sigh for them could as well be a hurricane. Their heartbeat could be heard by the naked ear. It was deafening for mortal ponies. Not to talk about their body overall. Their muscles rubbed as they moved, making a stretching noise just from opening and closing their powerful hand. Just stepping on too hard could trigger earthquakes or worse. Outside of their chamber, Applejack would be a natural disaster unleashed.

It changed their body's shape too. they had so much raw energy inside them, that their mental self image reflected on their body. In order to accommodate themself, as well as their own desires, Applejack also developed other features that showed of the power they now wielded. The first apparent change were the two bovine horns adorning their head. At first they insisted they gave a practical use of the strength of their head and neck. They said the same about their feet becoming hooves, and their tail became thicker and less equine. But as the changes went on and their body resembled more a minotaur and more androgynous, it became apparent they were embracing a new identity too.

Their fur also became shorter and thinner, leaving their impenetrable skin open to the elements, and a perfect view of their muscles in motion as they pushed the gigantic plow through the field. By the strength they displayed so casually, those muscles should be overdeveloped and take over their body. Instead, they all grew in harmony with the rest of their body. It didn't keep its feminine outline, becoming androgynous the more they grew. Instead of a thin waist, they showed off a set of abdominal muscles that could crush the hardest stones, giving their torso the appearance of a brick wall. In comparison, their ass and breasts didn't grow too much, but were kept large and firm by the titanic pectorals and gluteus muscles underneath them. Size that extended across their arms and legs, which they kept flexing and pushing to work on

Applejack needed to be constantly working, spending the energy. Otherwise, their already limitless strength would burst out in more destructive ways. And despite how much they changed physically and mentally, they were still fundamentally Applejack. So they gladly took over an eternal workload that would provide a useful outlet to their ever-growing power. It was even their suggestion to start with a barren wasteland when Twilight made their chamber. Since their own earth pony magic would provide with sustenance for the land, and they needed any extra work anyways, Twilight only create a flat landscape of nothing but earth and a solar cycle.

In just a few decades, they worked the empty space into a fertile and varied land, shaped as a perfect recreation of their old home, always expanding along their strength. They cultivated literally every plant species in existence, sending the products to the outside through Twilight's magic. By the first century, Applejack alone provided the entirety of the continent with food, and enough surplus to share with the world. Now, at the thousand years mark, there was not even a need to work the land outside, as long as Applejack's endless strength kept holding the world.

Twilight couldn't wait anymore.

She stood up and flew over, lading on front of Applejack. Her friend's face lightened up as soon as they saw her, letting go of the giant plow that buried itself in the land from its weight, and grabbed Twilight for a hug. They didn't even try to restrain themself, knowing Twilight could take it. On her part, Twilight was immediately engulfed by Applejack's massive arms. As an alicorn, she towered over every mortal pony, doubling them in size. But that was nothing for Applejack, who tripled her height alone. So, as her friend pressed their naked bodies together, it was like a regular pony hugging a doll.

Being trapped by muscles on all sides overwhelmed. The arms behind her back and on her sides, and the wall of pecs squeezing her breasts and abs pressing her penis against her own abdomen. She tried to move her hips as to rub herself on those abs, hard and warm as inside a volcano. But Applejack held onto too tightly. Until her friend decided otherwise, Twilight wasn't moving in any way. Not that she minded, as she took on the feeling, smelling the sweat of her friend impregnating her. She started to sweat along, followed by saliva an precum. Applejack's immobilizing embrace and giant proportions built the arousal inside Twilight, bringing back her lust.

With a great deal of effort, Twilight slid her tongue out, extending it to better taste Applejack's chest, while also looking for their nipple. When she found it, it was already hard, and almost as big as the apples they grew.

Applejack finally released their grip, sitting on their ass on the wet ground with Twilight -now free to move- resting on their torso. Retracting her tongue back to her mouth, she extended her arms over Applejack's pecs, gently rubbing herself as she looked up. But a pair of huge hands pressed behind her back and on her sides, grabbing her. She was sure that any other creature would have died from the pressure (another of the reasons they agreed to stay in their chamber), but Twilight could take it, and Applejack knew it.

Being handled by someone else, almost powerless as she was brough to he friend's mouth, was a rare experience for Twilight. She was power among her ponies. But in Applejack's hands, she looked like a doll to play with. And she couldn't be more excited about it as her face was pressed against the larger lips. They shared a kiss, Twilight sliding her tongue into Applejack's mouth and drinking their saliva. Twilight lifted her arms to caress their cheeks, needing her whole hands for the task. Despite the size difference, Applejack's short fur and thick skin were still as soft as when they were a pony.

There was another earthquake as Applejack's back hit the ground. Twilight got up, still swallowing a mouthful of saliva. Her stomach was full of the stuff already, making her belly look a bit rounder. Meanwhile, Applejack lied there, extending their arms over their head and crossing their wrists. Twilight couldn't help but shake her head playfully. Under all that unlimited strength and a body so big Twilight could spread open her legs, and barely reach their waist with her ankles, was the bottomest pony she could think of.

Twilight gently sat her knees on Applejack's chest and covered her breasts with arm across her nipples. She enjoyed as her friend's face started to redden, licking her lips as she lifter her other hand. With a flick of her pinky, the earth arose under Applejack's wrists, melting into magma and then solidifying in mere seconds. They both knew that it would take the minimum strength for Applejack to break their imprisonment. But Twilight didn't give them permission, and that all the force she needed to apply on the gigantic enby.

Twilight leaned over, almost as if about to kiss them again. But instead, she opened her knees, pressing her ass on Applejack's chest and putting her hands on the ground between their arms. She poked their lips with her penis and that was all the instructions they needed. They dutifully opened their lips and started to suckle. Twilight had to bite her lip to not moan. But that didn't stop her legs from shaking as Applejack's huge tongue caressed and suckled any precum she could have inside her. She had to actually start using her magic to keep up, pouring a stream inside Applejack's mouth, listening has a throat that could crush diamonds gently swallowed it.

After an hour of no breathing and constant drinking, Twilight stopped holding herself. Applejack's moan vibrated the entirety of Twilight's body as they took her cum in.

She got up from their face and sat back on Applejack's abdomen, her penis already hard and leaking again, covered by a thick layer of saliva. Twilight reached her hands down this time, caressing their nipples. They were so big, she almost needed to use her whole hands on them, once again needing magic to be able to pinch them. Applejack bit their lip to suppress any moaning. Twilight didn't give them permission for that either. Until the alicorn said anything else, the minotaur was to submit powerless to anything the former wanted.

Twilight slowly slide her groin down Applejack's torso, feeling their hard abs caress and tickle between her thighs and under her penis, until she finally felt something wet under her shaft. Twilight released Applejack's nipples, nodding to let them open their mouth and pant from the stimuli, as she got on her knees on the ground between their thighs. She gave a couple of playful slaps on them, and their legs began to part themselves. A flood of juices fell off, making a puddle under Twilight, who was salivating similarly as she saw Applejack's vulva already wet and quivering.

As she started caressing the lips around the entrance, Applejack moaned. In response, Twilight immediately went for their clitoris, caressing the tip with her palm before going down and starting to suck it. Applejack's hooves kicked just a bit, but they kept their legs still for Twilight, who was now pressing her face on their pussy. They could feel that long tongue penetrating them already, masterfully reaching their G spot from memory. Applejack's moans and soft squirming made the earth under them crack. They could barely held themselves as Twilight slowly pulled her tongue out, licking every bit of her entrance and loudly gulping another mouthful of juices.

Applejack looked down, and saw Twilight sitting on her knees, with her arms gently rested on her own thighs. They were panting in anticipation, pleading with their eyes as she waited patiently for the show of submission. They opened their legs the most they could, bucking their hips up and down. Twilight had to admit how much control they had over their body when she saw their pussy opening and closing. The earth and vegetation were disturbed all around them as Applejack begged with their whole body for Twilight's mere touch.

Twilight put her hand over their lower abdomen, just above their groin. That was all they needed to calm down. Then, she slowly got up from her knees and started to press her tip on the entrance, making sure to rub it on their clit before pushing in. She pulled out almost immediately, producing a cute yelp before pushing in a bit more. Like that, she kept entering just a bit at a time, resting her body over Applejack's abdomen. The later tried their best to not squirm, but still shook in anticipation each time she went deeper.

Finally, with a soft 'slap', Twilight's penis was entirelly inside Applejack.

She rested her breasts on their abs, caressing them with a single finger. She then leaned over to lick the muscular hide, burying her face on their body before starting to move. Applejack could feel the heat from Twilight's penis heating their own body, making them sweat like not even the hottest fire nor the brightest light could in the last thousand years. Only Twilight was strong enough to make them feel anything. And that had nothing to do with the power.

Twilight needed to use her whole arms to reach just the sides of Applejack's torso, moving more vigorously as she licked the sweat she knew she was causing. Giving them such pleasure, making them feel it made Twilight feel powerful. In turn, she was leaking all over again. Her nipples pouring a healthy amount of milk where they pressed on Applejack's lower abdomen, her mouth salivating as much as she licked the sweat, and her penis just filling their insides with precum.

Movements, sounds and fluids all shook violently, vibrating the earth to bits as Applejack reached their orgasm. Twilight felt a pressure that could crush a small sun on her penis, which was more than what she needed after so much build up. she quickly got up from Applejack's torso, leaving it soaked in saliva and milk, and began to cum violently inside them. Applejack's insides, already invaded by the previous stream of precum, got overfilled with semen. Twilight hummed as she saw their abs slowly being pushed up by the growing womb. She kept cumming like that, bucking her hips and holding onto their waist until Applejack's abdomen resembled an early pregnancy.

Then, they both fell together, spent from any energy. Applejack, for the first time since the las visit from Twilight, felt tired.

Twilight remained over Applejack's body, releasing their wrist from the volcanic stone and letting them caress her back. She did the same, softly caressing their chest with just a finger, locking eyes together until applejack was the first to be claimed by sleep. Twilight waited a little more, until their arm finally stopped holding her.

She flew up, careful to not wake them up. They looked so peaceful after a good night of sex. She lifted her eyebrows surprised, realizing that indeed it was night. That meant that what she first thought were just minutes must have been hours. A reminder that, when both are immortal and with night unlimited energy, time looses any significance pretty quick.

Twilight silently chuckled to herself, shaking her head from side to side as she used her magic to clean herself and Applejack. Then, needing to use both hands, she heated and melted the grounder under them, letting their body sink in the magma until inly their horned head was afloat. Twilight cooled it again, making pressure with her magic so the rock would be harder to break. Probably just a normal push for Applejack, but Twilight knew they would appreciate the goodbye gesture of waking up trapped and immobilized.

She flew off, opening the door and returning to the center of the Forbidden Chambers. As she exited the door, she started to caress her body again. One visit wasn't even close to enough. Without the spell of Applejack's chamber, Twilight's greed and hunger for lust came back to their fullest, making her unconsciously put a finger inside her lips as she turned to the left, over to the next door.

Author's Note

I swear my intent was to write smut and smut only. I'm as surprised as you are with all this worldbuilding, and characterization, and [gasp!] narrative.

I'm still not editing these things, though. Experimental narrative hits better when written and published raw. Just like my--

Also, my experience with nonbinary characters is still very limited. So please let me know if I misgendered Applejack at any point.

Next chapter will be Rainbow. Still deciding what do do with that, so let me know what you expect so I can either take that out of proportion, or just do the oposite ;)