Daring Do slowly sidled through the partially collapsed hallway. Her gloved hands carefully felt around to make sure the precariously perched walls were not in danger of collapsing ahead or behind her. The flashlight held in her gritted teeth did little to penetrate the almost suffocating darkness around her, but did reveal the carvings that marked every inch of available space on the walls in the temple. Marching across the stone less than an inch from her face were heavily stylized depictions of the ancient ponies who had lived there. She could easily tell the hieroglyphic mares from the stallions by the fact that the former were larger and even had impossibly large carved breasts. She theorized that this had been a matriarchal society, given the importance placed on the females - and their assets - in the carvings that covered every wall she had seen in the temple.
Her leading hand suddenly found nothing but air on both sides. Inching forward carefully, Daring's flashlight soon revealed an opening ahead of her. As soon as she was able to poke her head out, she found herself in a large room, perhaps 30 feet across and 20 feet high. Sunlight filtered in fitfully from a few small holes in the ceiling. More of the carved ponies danced around the walls of the room, the mares almost visible despite the distance and gloom.
Standing directly across from her was an enormous statue of a mare. A massively muscled mare with a bounteous bosom that matched the carved curves the explorer could see out of the corners of her eyes. The tips of the statue's ears nearly reached the ceiling, while the width of its shoulders spanned over half of the wall it stood in front of. The statue's nude stone breasts dropped nearly to the statue's waist and stood out probably a good eight feet in front of it, and the way the heavy stone knockers stood without support made Daring think that magic must have been involved in its construction. An intricately carved belt, visible despite the gigantic boobs, caught Daring's eye. She mused that the statue probably represented the society's founder or a great hero.
"These ponies sure had a type," Daring muttered to the stone statue.
At the base of the statue, in front of its feet, was an enormous sarcophagus or chest, covered in more depictions of the outlandishly sized mares. Daring carefully stepped forward, keeping an eye out for traps or loose sections of the floor. Coming closer, Daring saw that there indeed was a lid. Gripping it tightly, she found that she could easily lever it open with just her arms. While she was fairly strong for a mare (a lifetime of adventuring will do that for you), she would have guessed that she'd at least need a prybar to open the stone chest.
The lid rose, and Daring could see that it was hinged on the inside. Inside the coffer were what seemed to be a dozen gleaming gold girdles. The adventurer picked one up and felt a jolt of energy in her hands as she did so. 'Magic,' she thought, 'and it's a lot more powerful than a simple preservation cantrip if I can feel it.'
The girdles were decorated with more images of the oversized mares, but these were depicted in various bodybuilding poses designed to show off their assets as lewdly as possible. The one on the front was a simple waist-up double bicep pose, although much of the figure's torso was hidden behind her ridiculous rack. Thankfully the image's face and bust were both featureless, so Daring didn't feel too embarrassed to be holding it.
"I can't possibly take these back, though," she huffed. "I'd be tossed out of every museum from Ponyville to Griffonstone." A sigh. "Well, maybe I can take one back for Princess Twilight to study. She'd probably get a kick out of both the magic on this thing as well as the cultural implications of the artwork."
Daring turned back towards the entrance and was immediately faced with a conundrum. Much of the path that had led to this chamber had been choked with debris and had required her to sidle, crawl, and snake her way through narrow passages, something she couldn't really do and hold on to the lewd girdle. She was about to turn around and replace the artifact when an idea struck her. Placing the girdle at her waist, she quickly snapped the fastener at her back. It fit perfectly. Almost too perfectly, but it was magic.
Then it glowed, and a quiver of pleasure rang through her crotch and pierced her brain. Seconds slowed into minutes. The belt seemed to explode with white fire. A sensation Daring would, only in private, later define as pure, unadulterated power shot throughout her body. Her body pulled tight as she experienced a cataclysmic orgasm.
The energy radiated from the belt, transforming every part it touched. It started at her core, as abdominal muscles, formerly toned and athletic, grew wider and thicker. A waist that had fit through some of the narrowest passageways in the world suddenly expanded to be broader than normal doors and deep enough that two, or even three, normal-sized ponies, could hide in her profile.
The eldritch power of the girdle swept downward. Her slender hips widened and her ass bulged, first becoming motherly, then matronly, then fetishistic. Slim, yet toned, thighs groaned, stretched and exploded into long columns of undulating muscle. Thin shins suddenly became corded with muscle, forming devastating diamonds. Her heavy pants, built to take the roughest of tumbles and sharpest of edges, ripped and split, surrendering to relentless expansion. Her heavy-duty boots, which had taken countless hours of tracking through the most inhospitable jungles the world over and not quit, disintegrated as her feet grew to support the massive tree trunks her legs had become.
Simultaneously, the power rolled upward. She moaned with pleasure and her nipples sprang up against her shirt, rubbing roughly against her bra. Back muscles swelled and chest muscles surged, forming thick, ridged slabs that pulled her tough shirt taut against her fur. Her shoulders groaned with new muscle, widening her into a sort of exaggerated hourglass shape.
Her breath caught in her throat as her nipples expanded, doubling in size, tenting against her now skin-tight shirt. They quivered like the tops of twin rumbling volcanoes. A raging rush of titflesh exploded outward, popping off her buttons almost simultaneously, mushrooming from her chest like enchanted bread dough, covering her granite-like pecs with huge, warm globes that wobbled and bounced in the dusty air. Her nipples expanded again as her tits grew bigger still, jiggling far outside the outline of her already impossibly wide frame.
Her arms, though showing the trim muscles of a life of adventure, looked tiny and awkward attached to her thick, distended shoulders. Then the magic pumped into her biceps, which began began to shake as she felt a rush of power. She flexed, and her arms exploded in size, doubling in size once, twice, five times. Her biceps rose, then peaked, then split and peaked again, rising higher than her head. Her triceps dropped like the engorged bellies of beasts. Belts of carved muscle pushed out from elbow to hand.
During all this, her body continuously shot up towards the ceiling. Muscle and breastflesh compounded, each seemingly trying to outdo the other for dominance on her frame. Her ever-expanding thighs became drenched with fluid as orgasm after orgasm rocked her, blanking out her mind and soul.
Enough time had elapsed during the transformation that the sunlight coming through the ruined ceiling was the dark orange-red of a jungle sunset. Daring breathed slowly as her senses returned from Nirvana. She blinked and turned her head, now able to look the sensual stone statue in its carved eyes. Her ears twitched as she heard a few jungle birds sing outside, and the tips brushed against the ceiling, lightly scattering even more dust into the air. Cautiously, she raised up one of her massive arms and a mustard yellow mountain responded. It was probably wider than two normal-sized ponies standing shoulder-to-shoulder, and thick enough that those same ponies wouldn't be able to touch fingertips if they tried to wrap their arms around it. She attempted to flex, but stopped halfway when her massive biceps started pushing on the fragile roof.
'Better take it easy,' she thought. 'Don't really want to find out if I can survive an entire temple collapsing on me. Even if I feel like I could.'
Instead, she turned her attention in front of her. Mountainous tits gently bobbed and swayed with each breath, but didn't droop like they realistically should have. She reached to gently caress one mega-boob, and shuddered from the joyous sensations just a light touch had brought out.
'I can only imagine how it would feel when somepony else touches them!'
Taking a few seconds to calm herself down (again), Daring began to investigate her surroundings. After carefully stepping around, and maneuvering her gigantic bosom out of the way, she saw that her clothes were little more than scraps on the floor. She huffed and placed her hands on her hips. She'd really like that outfit. But then she realized that she was still wearing the belt.
'One of the enchantments must have made it grow with me,' she mused. 'Makes sense. Why go through all that trouble to make some Ultra-mare belt only for it to break the first time it's used?'
Cautiously, she undid the girdle and took it off. After waiting for a few seconds, she exhaled a breath she didn't know she'd been holding. No shrinkage, no regression to her smaller self. And Daring felt ... relieved?
"I guess this is me now. Doesn't feel bad at all, really. I actually feel kinda sexy! Gonna have to change how I explore ruins now, if I can still do it." As she said this out loud, she realized that her voice had become huskier, but hadn't dropped as much as she'd expected, given her size.
Daring gave one last look at the carved mega-mare across from her, reckoning she looked like a real life version of the statue now, then looked down into the chest containing the rest of the girdles. Scooping up the remainder of the dozen, she stood up and looked around.
"I bet there's about six or so mares in Ponyville that would be interested in these," she said to her stone twin. "Now, how to get out of here..."
