In Sombra's Dungeon

Fluttershy stumbled along the dank corridor, dragged forward by the guard — one of Sombra's female soldiers. The yellow mare's hands were bound behind her back, a thin leather strap looped simply around her pinkie-fingers, her palms turned outward uncomfortably. Held together with a buckle, the ends of the strap then continued down, around her dock, between her ass-cheeks, and then back up between the folds of her marehood. They passed either side of her clit's hood, before parting, and then looping up over her hips. They criss-crossed behind her back, before finally connecting to the straps that bound her wings. The whole arrangement was painfully tight, and held her labia apart even with her legs fully together. The smooth leather rubbed her intimately with each step she took, and any attempt to stretch out her arms or wings would only cause the straps to dig in more deeply against her privates.

With her arms and wings bound, the unevenness of the cobblestones beneath her hooves was especially worrying. If she tripped and fell, nothing would break her fall, and this was far from her only concern. The guard pulled her, not by the collar fitted snugly around her neck — the closest thing to clothing the young mare now wore — but by a pair of clamps that firmly pinched her nipples. She knew from painful experience that the clamps would not hold her weight, nor would the guard's iron grip release the chains hanging from them. If she fell, Fluttershy knew, the clamps would be painfully yanked free, and her stinging, burning nubs would be pressed against the icy cold, hard floor, as the guard placed one boot on her back, holding her down while that cruel whip once again punished her.

Just thinking on the memory made the welts on her rump throb.

Worst of all, though, would be what came after. The guard would haul her to her feet — her tail had been clipped down to the dock, but enough of her mane had been left to form two braided "handles", looping around the back of her head — and put the clamps back on. Having them in place hurt, but it was bearable. It was having them put in place, and removed, that hurt the most.

And so Fluttershy did all she could to find sure hoof placement on the rough stones beneath her, a task made no easier by having only the guard's dim, flickering lamp to see by. She desperately hoped their journey would not take much longer, and, though she knew it to be foolish, tormented herself with faint hope that it would be warm. The cold made her shiver, and raised goosebumps all over her skin, causing her thin coat of summer fur to stand on end. It certainly made her sensitive regions no more comfortable. Either way, she knew there was no point in asking; Questions would be answered only with punishment, for speaking without permission.

Eventually, the guard stopped behind a large wooden door, and Fluttershy stopped short just behind her. The door looked crude, but effective, clad in large iron bars, with hinges and a sturdy-looking lock on this side, and a smaller, hinged, hatch at eye level. The guard placed the lamp on a shelf beside the door.

“Stay.”

The guard's command was startling, the first sound besides hooves on stone that Fluttershy had heard for some time now. It was also unnecessary; Fluttershy knew well enough that she had nowhere to run.

Letting go of Fluttershy's chains, the guard lifted a keyring from her pockets, and moved to unlock, then open, the heavy door, revealing the inky blackness within. Fluttershy fought hard not to whimper or cry at the thought of being locked up, alone in the cold and absolute darkness, for any length of time. She found herself thinking that she would almost rather the guard did anything to her, rather than leaving her here and doing nothing else at all.

Leaving the keys in the lock, the guard ran the back of one hand across Fluttershy's navel, scooping up the chains once more from where they hung. With her other hand, she lifted the lamp, and brought it around.

“Heel.”

Not that Fluttershy had any real choice in the matter.

As she stepped forward, the lamp dimly illuminated the room. Before her eyes could take in the details, though, her nose registered the thick, musky smell that hung in the air. It was a smell that elicited dampness from Fluttershy's nethers, despite the horror of her situation. The undeniable reek of sex and sweat hung heavy in this room.

On the floor to her left, a sturdy-looking assembly of wood, iron, and leather, might have been mistaken for an exotic item of furniture, in a different context. Here and now, Fluttershy was certain it was an implement of torture, even if its function was not immediately obvious to her.

To her right, though, was something of greater importance. Or rather, someone. The guard hooked the lamp onto a loop that hung from the ceiling, and Fluttershy did let out the tiniest whimper, when she recognised the pony shackled to the wall. Of course, it should have been no surprise. Twilight Sparkle had been missing for weeks now, and when Fluttershy herself had been captured by Sombra, it would have been only logical to assume that her missing friend was likewise chained up in one of His dungeons. In truth, though, Fluttershy had simply refused to think about it.

Twilight's hooves were suspended above the floor, her entire body secured in place. Her eyes were closed; Fluttershy could not tell if her friend was actually sleeping. Nopony could find restful sleep in a place like this, but there could come a time when sheer fatigue would bring about a restless doze. The purple mare's breathing seemed rapid, and shallow. Her body twitched sporadically.

Fluttershy's teary gaze stayed with Twilight, even as she herself was led to the contrivance opposite. Her attention did not waver from her friend, even as the guard pushed her down into position.

Twilight's mane had been shaved close to her head. Black metal gripped her scalp and horn like a mockery of a crown, no doubt sealing away her magic. Small weights hung from her now-pierced nipples. Welts were visible on her breasts, where her fur was thinnest. The most obvious signs of her torture, however, jutted forward from between her legs.

Fluttershy remembered how embarrassed Twilight had first been, revealing to her friends that she, like a small percentage of other ponies in Equestria, possessed both male and female genitalia. Fluttershy also had fond memories of the days when together, they discovered how much joy Twilight's stallionhood could bring both of them.

To see it now, once the instrument of so much pleasure, twisted and tortured so cruelly, was heart-wrenching for Fluttershy. The mighty cock throbbed and bulged against the steel cage that confined it, bending it into a downward curve that Fluttershy knew would be neither natural, nor comfortable. At the base, Twilight's cock was held near-upright against her body. Towards its tip, it was near-horizontal.

Spikes lined the inside of the cage, not sharp enough to pierce the skin, but doubtless sharp enough to cause its wearer agony. A further cage surrounded Twilight's swollen, abused, testicles. Metal clamps held each ball out away from her body, despite the cold dungeon air. Wires ran from the base of her cage, up around behind her, to the crown on her head. Every so often, Twilight's hips would spasm, bucking into the wicked device.

Thick goo hung from the underside, stretching from tip to base. A glance at the floor revealed sticky stains where Twilight had been dripping, which Fluttershy might have missed in the dark, had she not been looking. It was hard to believe, but Fluttershy had to conclude, it was almost certainly several weeks' worth of copious precum, with not one drop of true release.

Beneath the caged balls, attached to the wall, a thick shaft was buried in Twilight's marehood. Fluttershy could see movement there, something mechanical, but the details were too shadowy to make out. Twilight's thighs were matted, though, more so than the rest of her coat, and it didn't look as though her cock-juices had gotten that far.

Meanwhile, the guard had locked Fluttershy into the rig. Her dock was lifted high, her rump pushed into the air. Her legs were spread wide, and locked straight. A bar pressed against her back, forcing her belly downward. The straps around her butt and pussy were gone, but her arms and wings were still held in much the same position. There was slightly more slack for them, though, and Fluttershy found even the small increase in mobility to be a relief.

The nipple clamps were removed; Her breasts hung unsupported beneath her. Her neck and shoulders were supported, though, and her head tilted back to face forward. Already, Fluttershy had learned to distance her mind, from what was being done to her body, but she couldn't help but take note of the position she was in, as a set of hooks were put in place, to hold her mouth open. Her line of sight to Twilight was interrupted, as the guard's belt buckle filled her vision.

Satisfied that the restraints were in place, and securely locked, the guard turned away, and crossed the room to face Twilight, standing to one side. Intentionally or not, she once again gave Fluttershy full view of Twilight.

“Whore!”

For the briefest moment, Fluttershy thought the guard was addressing her. But no, this guard had only ever addressed her as “trash”, and it was in any case clear that she was addressing Twilight.

The unicorn's eyes opened, her droopy expression triggering a pang of sadness for Fluttershy. Twilight's eyes were glassy, and unfocused. She turned her eyes in the guard's general direction, and moaned. A trickle of drool slid down over her chin.

“I have good news for you, whore. His majesty has decreed that we have finally found a receptacle lowly enough for your seed.”

It was testament to how far the normally erudite pony was gone, that she only stared blankly at the guard, and uttered a befuddled grunt.

The guard sighed. “It means,” she said, “that tonight, you get to cum.”

The effect was immediate; Twilight shuddered, and moaned. A movement caught the edge of Fluttershy's vision, and her gaze was brought down to Twilight's cock, where a large, fresh blob of pre oozed its way out and hung from her tip, before dripping to the floor with a messy splatter.

Fluttershy could hardly bear to watch, yet could not bring herself to look away; It was unbearable to see her friend in such a state, and she didn't dare even try to imagine what Twilight must have gone through these last weeks.

The guard removed another key from her pockets, and began removing Twilight's restraints. First, the pillar buried in her cunt was released, sliding out under its own weight. Fluttershy shuddered at the size of the thing, not to mention its shape. Twisted and bulbous, with spikes and ridges, it was unmistakably a torture implement rather than a sex toy.

When Twilight was lowered to the floor, her knees bent, and she sank as far as her restraints allowed.

“Stand.”

The guard flicked her crop through the air, and immediately Twilight forced herself upright, even if she shook and swayed.

The whole time, Twilight's gaze was locked in the guard's direction. It followed the guard's hands down as, leaving Twilight's wrists until last, the guard removed the cage. The look on Twilight's face, as the metal bars fell away, was one of the purest relief.

Finally, the guard unlocked Twilight's wrists. Almost immediately, Twilight's hands went for her own crotch, but the guard's crop swatted them away.

“No touching,” she admonished.

Twilight wailed, and began trying to force words out.

“Puh… pluhp… pleas…”

The next swat stung her thighs, and Twilight jerked upright, hands snapping to her side and cock standing angrily to attention.

“You were not given permission to beg,” scolded the guard. “But don't worry,” she continued, in a gentler tone, “I'm sure this new toy will feel much better than your clumsy, rough, hands.”

With these words, she used the crop to direct Twilight's attention in Fluttershy's direction. Seemingly for the first time, Twilight noticed the helpless yellow pegasus in front of her.

Only now did Fluttershy begin to truly realise her part in this. There was no hint of recognition in her friend's eyes, the mare did not even make proper eye contact with her. Instead, Twilight's eyes travelled over Fluttershy's body with a look of pure, predatory, hunger.

Fluttershy squirmed against the restraints, of course to no avail. If only she could speak, could somehow pierce the fog clouding Twilight's mind… Fluttershy didn't even care what happened next, if she could only see some spark of recognition. But none was forthcoming.

Twilight, unused to walking after so long, began to slowly lurch towards Fluttershy, dripping pre all the while. The guard unhooked the lamp from the ceiling, and crossed the room behind Twilight, headed for the door. She stopped to watch, as Twilight covered the remaining distance.

Twilight's slime-covered member hung throbbing, inches from Fluttershy's open mouth. The stench of Twilight's sex was overpowering. A single purple hand reached forward, hesitantly, to the top of Fluttershy's head, and the braided loop placed there for this very purpose. Fluttershy strained her gaze upward, barely able to see Twilight's lust-filled expression.

Tears trickled down Fluttershy's cheeks. She wanted to scream Twilight's name, to do something, anything, to bring her around, yet here and now she was helpless.

“Whore?” interrupted the guard.

Twilight froze, a look of panic spreading across her features. Slowly, fearfully, she turned her head to the guard.

“His majesty has been generous enough to give you a toy with three holes. Be sure to show your gratitude, by making the fullest possible use of all of them.”

And to Fluttershy's absolute horror, a small smile formed on the corners of Twilight's mouth, as she nodded her understanding. In that moment, Fluttershy's concern for herself overtook her worry for her friend, and she began to panic, thrashing futilely against her bonds.

As Twilight slid her goo-covered cock onto Fluttershy's lips, forcing the first taste of the pre into her mouth, Fluttershy, lost to her panic, turned her gaze to the guard. Some part of her desperately identified this other mare as the only possible source of mercy left to her, the only sliver of hope she might have for a last-minute reprieve.

The gesture was not lost on the guard. In those last, brief, moments, she looked Fluttershy straight in the eye, and smiled.

Then she turned, and closed the door behind her, taking the light with her.