Gluttonous Desires

As night fell around Equestria, Twilight retired to her bedroom high atop the castle. She always wondered why the room was so big, not that it mattered. Most of the castle rooms were of a grand size, it certainly kept Spike busy having to clean more than the old library. The huge size tonight would be to her benefit as she was going to need every bit of space the room could offer, and maybe more if what she was hoping for would come to pass.

Twilight trotted over to where she had concealed the panties Rarity had given her earlier, she stared at them again for a few seconds, they wouldn’t remain like this much longer she thought as she slipped them around her flank. Immediately the tightness took hold of her, but they were still nicely snug around her behind. ‘Now imagine.’ She thought to herself. ‘If I was bigger, and these were tighter, I bet the feeling…well, would be incredible compared to what I’m feeling now. And I’ve got to put a little more into my flank, maybe a lot more if I’m going to make her take that comment back.’

There was a spell, she had been looking at earlier in the day which caught her attention. It was an aura spell that supposedly was to be used in the event of injury – it enveloped the part of the body that was injured and soothed it to help with the healing process, very useful indeed. Twilight knew that she could enlarge herself by eating some food, but she was still constrained by the rules of the universe. What if…what if this spell could manipulate her body? She read that the use of it was not recommended, as even though it soothed it was also prone to, in some ponies, having a side effect of causing the skin and muscles to relax too much, which went on to comment that this was particularly a problem in alicorn and unicorn ponies who had used the spell.

She thought that if her skin and muscles relaxed…that would give a bit of stretch, and wanted to test this out. She wondered just how far the ‘stretch’ would be able to give to her body. The book wasn’t specific on this part, and only warned of the dangers of employing the spell. She decided to try it, Twilight was never one to walk away from a new piece of magic, and if it could be employed to serve her purposes then all so much the better. If it helped her gain a bit of weight as well, that was also going to be a huge benefit.

It was by fortuitous design that below the bedroom was where the pantry was, her horn glowing Twilight performed a teleport spell not on herself, but on all the food contained within it. Despite the fact she was often alone in the castle, a large amount of food was kept in stock at all times to cater for last minute guests, or the usual surprise visits from all her friends. She was going to need every last bit of it tonight, as she looked up at the mountain of food now before her eyes. Obviously this huge bounty would not last the course, and she had plans on how to get more – as long as the first part went to plan.

She positioned herself in the middle of the room, which would be best as the space was needed, and the food was just slightly in front of her, she could easily begin to eat without having to use too much magic. She would have to save a lot of it for later when it was needed most.
The first piece of food slipped down her throat with ease, and the next piece, and the piece after that. Soon Twilight was beginning to eat at a rate only most ponies could dream of, a conjured aura around her belly giving her the necessary room to take in the food. She also extended it around her flank and the panties that adorned it so gracefully. As she ate she used her magic to caress her stomach, so that the absorbed calories from the food made its way to her rear. She hadn’t quite expected it to work so well, already she could feel the little panties tightening against her expanding flank. The sensation was amazing, as her buttocks expanded and the panties shrunk they quickly became lost in between her two swelling cheeks that were doing their best to engulf the thin material.

‘This isn’t nearly a tenth of the food in front of me, and already I’ve lost them into my swelling mass. Time to even the odds’ she thought, and with that her horn glowed and the panties suddenly re-appeared, bigger and now once again covering her ass nicely and firmly. ‘That should do it for a little while, I can always expand them again later if need be.’ She reassured herself.

Twilight continued to gorge herself on the food, and using the aura spell to caress her stomach and push the food back into her swelling flank that was continually expanding outwards and upwards. Her stomach was expanding as well, though not nearly as fast as her behind. It had reached a comfortable size where her legs and hooves were beginning to rub against it, and she relished the thought that soon it may reach a point where she could be lifted off the ground and feel even bigger than she did already.

Her cutie mark was now a thing of beauty, expanding its size along with her glorious butt, it was starting to rise above her body and shadow everything in the room. Her buttocks began to jiggle as once again the panties pulled tight against her huge canyon like flank which was now covering a large portion of the room. The swaying of her huge cheeks spurred Twilight on further to keep eating, and eating faster, as the feeling of her rolling and jiggling flesh brushing up and rubbing against the panties took hold of her. She expanded the aura spell around her flank further and rubbed her now towering ass with delight, which sent a shiver of pleasure down her entire body.

As her buttocks expanded further, shadowing the room, Twilight looked around her. The door which she had used to enter not long ago was now laughably small to try use to leave the room and by extension, her castle. The generous sized room would have to give way to her even more generous flank, which was now expanding at a visible rate. Once again the panties stretched against her flesh further and were being swollen up by the ginormous rear end, now only a small portion of the top where what remained of her hips was visible – the rest lost inside her heaving, swaying and rolling ass. ‘I must remember to thank Rarity for these later’ Twilight thought to herself ‘she clearly put a lot of work into these and the material must be something special for them to be expanding along with me like this, even if they do need a little help now and then.’

As she glanced over at the remaining stock of food she had summoned in from the pantry, Twilight felt a small portion of her increasing flank push against something hard. With what was left of her neck she turned her head – likely for the last time before it was engulfed into her belly – to see her massive behind and now house-sized cutie mark beginning to engulf the outer wall of the castle bedroom. She could feel her rolls of flesh pushing up against the thick crystal wall, combined with the ever increasingly tight panties that now looked like a small trophy holding together her incredible flank, she started to moan to herself ever so slightly. She wanted this to last as long as she could make it last, and she knew that to bring herself to heel she would have to get out of the castle, one way or another, hoping that she wasn’t too late before the inevitable happened.

It was a risky move, but Twilight was hoping it would pay off. She could see now the food, nearly depleted – would be what she needed to achieve her goal, and she would need to scarf it down her gullet quickly before the sensation of being confined to the bedroom, as well as the panties pulling against her overtook her senses. To help starve this off just for a little longer Twilight summoned her incredible magic once again, and like a ship rising out of the icy depths her panties once again rose out of her ginormous ass, now matching her size. Once again like the first time she had placed them over her flank, they were nicely tight but covered her well.

‘The material must have been incredible to keep being increased in size like this, yet when I keep growing bigger, once again they return to their original form…just well, bigger’ she mused to herself ‘I think Rarity deserves more than a thanks for this, I know she never intended them to be used this way….but I wonder. I know she said I needed to gain a little bit but never to this level, or maybe she did. I will have to question her later.’

Her train of thought was suddenly interrupted by the unmistakable sound of shattering glass. Her ass now so immense that it had pushed itself up completely against the rear wall, and even the incredibly strong windows could no longer contain its huge, jiggling mass. There was another crash a few seconds later as another window shattered, and finally the last few gave way. Anypony now wandering by the castle would have seen a number of huge, purple globes of butt cheeks poking out from the remains of the windows, which were now forcing their way through the frames and outwards into the open air.

Twilight was still rising upwards as well, the aura spell was doing its job, and it had the added benefit of being able to relax and expand her stomach as needed. No normal pony could consume this much food and live to tell the tale, not even Pinkie with her almost unbelievable eating habits. As she continued to finish off what was left of the food, she felt herself moving forward as well. Only slightly at first, but it continued. Clearly the walls of the castle were well built, and weren’t ready to give in just yet. This was compounded by the fact that her huge body had now started to sweat slightly to compensate for its girth, and as it dripped down her body it almost acted as lubricant that allowed her to push forward towards the wall on the other side of the room.

Now with her incredibly increasing plump posterior firmly wedged up against the rear wall, being held firmly in place by the parts poking out of the windows – Twilight knew she had to reach the wall on the other side and give her humongous body nowhere else to go, and that she could implement phase two of her plan and use the aura spell she had been continuously casting to firm up her currently freely expanding flank to give it enough oomph to push against the castle wall, and bring it down from within. If it didn’t work, well, a huge Twilight would be confined to her bedroom, with no access to more food – and she had much bigger plans for herself yet.

She was now a good 10 feet off the ground, and was able to use her new found height to stretch her fat, globular hooves outwards in front of her and get a firm grip against the wall in front of her, which she had now reached. She intensified her aura spell to help hold her front legs upwards which was a job in itself, her massive size now making even movement a strain, let alone holding up her legs which wiggled about uselessly, no longer able to serve the function of walking as her body writhed and sloshed below her. Soon though her body caught up to her, and provided a plump purple cushion to lay her legs upon. She was now firmly up against both walls, not being able to turn her head anymore and check for certain due to her immense neck with rolls of fat stopping her – she had to assume by the feeling of solid crystal against her buttocks and what she could see in front of her now meant she was touching both ends of the room, which not long ago had seemed so massive by comparison. ‘Time to implement phase 2!’ she thought to herself and grinned, if you could call it a grin, her massive cheeks now making any facial expression almost impossible to achieve. Her horn once again glowed brighter and she began her work with the aura spell.

With all her might, Twilight summoned two huge pairs of hooves just above her flank. As they winked into existence she gasped, clearly the extra strain of another spell on top of the aura took its toll and her body rippled from her horn downwards. She felt her buttocks sway and then slap against the wall behind her. As they did there was a faint cracking noise as the wall buckled slightly – she had not expected that to happen. The wall still stood though, and she put her huge new hooves to work.

With one on the left buttock, and one on the right, she pushed against her mammoth ass and the rippling cheeks firmed up against them. As she pushed harder with the hooves she felt the flesh in her flank tighten further. She also felt her butt cheeks push closer towards each other and the material of the panties getting crushed between them. It felt amazing, and it was all Twilight could do to stop herself yelling out in pleasure and attracting attention – the last thing she would want is Spike coming in. Not that he could, she had now expanded outwards and covered the door. His advance into the room, if it came, would firmly be rejected as the door was tightly held shut by the side of her extensive flank.

For a little while not much happened, Twilight continued to finish off the remaining food, now dangerously low and felt her tremendous posterior expanding still, but nothing from the wall. After a few minutes however she heard the unmistakable sound of the window frames popping out of place, her immense ass trying to gain what little space was left. The window frames now gone, gave a little more room, but not for long. At first there was a creek, followed by a cracking noise as parts of the wall started to come away from the rest of the building. Spurred on by its imminent demise she upped the ante and pushed as hard as she could with the summoned hooves, and firmed her jumbo behind up even more against the wall.

With an almighty crunch, the wall finally gave way. Defeated by the hulking buttocks that had pushed their way up against it, it now lay on the ground far below the castle. Twilight let out a sigh of relief, and gave one last little push before she dismissed the hooves and again felt her body ripple with delight. As lovely as they felt against her, she needed all her might and magic for the final phase. The pantry food now all devoured, she needed to replenish herself ‘What do we think….Sugar Cube Corner?’ and as the thought came to mind, she could swear her thundering flank rippled with delight.