Twilight spent a lot of time getting intimate with the diaper pail. Given her situation, how could she not? She’d been stuffed deep inside, surrounded by soggy, dirty padding. The limited space kept her fore legs and wings pinned behind her, while hands held her hind legs outside. Ten fingers groped her own padding, and her tail—the only part of her truly free right now—swished and flicked with delight.

Everytime she grew close to climaxing, the hand would ease up on the pressure. The fingers would move slower, digging into the padding less, never letting her off of the edge. She was kept perpetually wanting more.

“Mmmph~” Twilight moaned. She suckled her pacifier as her snout smushed against a wet diaper. Her body stiffened in preparation for orgasm, but even as Twilight’s eyes rolled to the back of her head she knew she’d only be denied again.

And she was, with the hand in her crotch pulling away at the last possible second. Twilight shuddered. The feeling of the padding crinkling back into its proper shape just about had her lose it. She was so close.

“Mmmm…” She moaned, begging for the hand to return. She knew the AI wouldn’t leave this job unfinished. The only question was: what did it plan to do with her?

The answer came soon enough. Twilight found herself being pulled out of the diaper pail. Her body squish and pressed against the used diapers as she moved up. Messy padding squished against her cheeks, chin and horn, somehow not leaking on her.

She popped out of the top, greeting the upside down dungeon with a red face. Her nose finally got the scent of fresh air again and it was monumentally disappointing. Between last night and just now, Twilight had been growing quite comfortable with the scent of dirty diapers pushed up her nose. She kicked, wanting to go back into the pail again.

But the nursery had other plans for her. Twilight was spun upright, giving her a proper view of the dungeon. It hadn’t changed much; Starlight and Trixie were still struggling against their respective bonds, just with some extra fun stuff thrown in. Fun, from Twilight’s point of view, of course.

Trixie had a vibrating wand buried deep in her padded crotch. Its setting was high enough that Twilight could hear the low buzz from across the room.

“Mmmm! Phhmmph ffffrrr…” Trixie threw her head around as her body was straining against the cuffs. She couldn’t get free, but that wasn’t going to stop her. Even a one percent chance of getting free must have been preferable to more teasing.

Her red, panting face said it all. She hated the feeling of her padding bunching up against her marehood. But the vibrations were also sending waves of undeniable pleasure coursing through her, no doubt making Trixie hate it all the more.

Starlight was faring… better? Worse? It was hard to tell.

Spared the vibrator, Starlight was instead forced to sway back and forth like an actual rocking horse. A riding crop hovered by her flank, which sported a decidedly red mark on it. Twilight knew the position she was in well; slowing or stopping meant you got spanked. And judging by the way Starlight was fighting to throw the harness from her head she didn’t like it as much as Twilight did. That wasn’t too surprising. But what was surprising was that Starlight had managed to keep her diaper clean so far. Even with the gurgling from her stomach noisy enough to reach Twilight, she still refused to do the deed again, straining against it as much as possible.

Twilight didn’t have time to think on how much longer she would last; she was already being pulled toward Trixie.

“It seems this little filly is getting lonely. Wanna help her with that, Twilight?”

“Mmm mm!” Trixie shook her head as the two neared each other. “MMph!” The vibrator in her crotch was pulled away, preventing the edging mare from climaxing.

It was then that Twilight made contact. Their bellies met, fur mingling. Trixie faces shouldn’t have been able to get redder, but it did. Twilight managed to match her, and looked away. The tickling heat of their bodies pressing together was bad enough, but then their padding pushed in, swaddling each other’s marehoods awkwardly.

“MMPH!” Trixie protested.

Twilight struggled to keep her wings at her side. She tried to pull away, if for nothing else than to make Trixie a little more comfortable, but more hands grabbed her. Soon her hooves were forced to snake up Trixie’s forelegs, and their faces were brought closer together.

“Aww, how cute,” the AI teased. “Now kiss.”

“Phrgrrt mmpf!” Trixie declared. But it was too late.

A hand gripped the back of Twilights mane and pushed her into Trixie. The guards of their pacifiers clicked together, and the nursery held them there as though they were in the throes of a passionate kiss.

“Mmmmph! Mm mmmrr!” Trixie glared at Twilight, as though this was her fault.

Twilight tried to look away, but her flaring wings gave up her true feelings. She was loving this. She’d yet to have her own first kiss, but this forced paci-kiss was something akin to what she expected the real deal to be like. Not to mention it was steeped heavily in her personal fetishes; padding was bunched up against her. How could she not be enjoying herself right now?

The hand did eventually pull Twilight away, and the AI giggled. “Aww, I think she likes you, Twilight.”

“Mmm mm!” Trixie shook her head. Humiliated rage boiled off of her face.

Twilight could only offer a weak apology with her eyes. It wasn’t enough.

“How about we take it to the next level, then.” The hands began spinning Twilight around, putting her back to Trixie.

“Mmph?” Trixie had no idea what was about to happen.

“Mmm…” But Twilight did. And, well… why bother fighting the inevitable?

Twilight was bent over, her plot forced high into the air. She prematurely lifted her tail, but a hand still came down to grab it and hold it in place. By now, Trixie had figured out what was going on. She wasn’t… thrilled about it.

“MM MM!” Trixie shook her head. “Stmph errt! Mmmph!”

But there was nothing to be done. Twilight’s padded rear was on a collision course with Trixie’s diapered crotch. And when the two met, sparks flew.

“Mmph!” Twilight moaned as padding contoured around her cheeks. Her marehood was left woefully unattended, but still quivered with pleasure. She could only imagine how it felt on Trixie’s end.

The mare was writhing for all she was worth, but couldn’t escape the bonds of her X-frame. All she managed to do was rub her diaper up against Twilight’s, and given the enraged grunts that was the last thing Trixie wanted to be doing.

“Good girls,” their dominatrix purred. It pushed Twilight into Trixie, pulled her back, and pushed again. “What a lovely pair you make.”

A rhythm developed as the two were forced to hump one another. Their diapers would crinkle upon release, and even more so on contact. Back and forth, back and forth. Twilight’s marehood found itself burning, even if the angle wasn’t able to smother it with padding. Just her plot getting softly pounded was maddening at this point. The worst part was that she couldn’t even climax like this, just get closer and closer to the edge.

crinkle crinkle crinkle

Meanwhile, Trixie was livid. She screamed into her pacifier with each forced thrust, her tirade completely muffled. When Twilight looked back, she saw Trixie’s eyes closed and her face growing ever red. Her anger was an attempt to hide her shame; no matter how humiliating this was, much like with the vibrator, you could only pretend it didn’t feel good.

Trixie was enjoying this on a very base level, and probably hating herself for it. Or rather, hating Twilight even more.

crinkle crinkle crinkle

Twilight looked away, hoping to give Trixie some modicum of privacy. But really, that was impossible. Just across the room, forced to look at them because of her blinders, was Starlight. Her wide-eyed expression bore shame into Twilight. She seemed so shocked that she couldn’t peel her attention away, even if she hadn’t been stuck looking at them.

crinkle crinkle crinkle

Twilight’s face flushed, realizing their audience of one. Now this debauchery felt even more wrong. And yet, even more right, too.

Here she was, forced into awkward, padded lovemaking with Trixie while their close friend had to observe every detail. Every twitch of pleasure on their faces, every crinkle from their grinding… They weren’t allowed any decency or privacy.

And Twilight was in love with it.

crinkle crinkle crinkle

She moaned, suckling on her pacifier. If only her marehood was battering Trixie’s plot and not the other way around, she would have definitely climaxed by now. In fact, she was surprised Trixie had yet to. Even with how much she must’ve hated this, her angry grunts were morphing into pleasured groans. She might just be close to cumming in her diaper.

“Eergh!” Across the room, Starlight suddenly moaned. A loud gurgle rippled through the room, even louder than the crinkles from the humping.

The AI slowed its hands upon hearing it. Eventually Twilight’s forced thrusts came to a stop. Her marehood was left whimpering, not even allowed its slight pleasures anymore. Trixie was breathing heavily, groaning into her pacigag. She must have been close, so close that the absence of actual relief must have been maddening, even knowing what that entailed. One question was on both mares mind’s.

Why had they just stopped?

And the AI answered. “It seems little Starlight is about to have an accident. Twilight, dearie, do you think you can help her with that?”

“Hmm?” Twilight bit down on her pacifier. While she tried to figure out what it meant by that, the AI started lifting her away from Trixie.

“Mmm... mmmrrr…” Trixie whined, squeezing her eyes shut. She wasn’t too happy about being denied her orgasm. Though, seeming to realize what that meant, Trixie shook her head and huffed, looking away. “Hmmph!”

Twilight didn’t acknowledge it for Trixie’s sake, but she was also a little disappointed they hadn’t finished. If nothing else this constant denial was getting torturous.

She was brought over to Starlight, who was hunching over as best she could, fighting an overwhelming urge to poop herself. Twilight recalled just how strong those laxatives were supposed to be, and was impressed that Starlight had held out for so long. But she was fighting a losing battle.

And apparently Twilight was supposed to “help” with that.

Hands brought her around to Starlight’s plot. Her diaper came to dominate Twilight’s view. White, poofy material pressed against her chest as her body was forced against it. Starlight finally stopped rocking thanks to that, but that didn’t exactly make her happy. She was grunting in pain as she held back an imminent explosion.

“Now hurry up, Starlight. Twily here can’t wait for you to use your diaper.” The nursery pushed her body even deeper into padding.

Twilight bit her pacifier, unable to correct the nursery on that. Mostly because there was nothing to correct. The fact that she was at ground zero for Starlight’s accident was almost as maddening as grinding against Trixie had been. She wished she was up higher so she could thrust her hips against Starlight’s oncoming mess. But the thought immediately filled her with guilt.

Come on! She shook her head. You can’t keep thinking like that. This is wrong!

So very, very wrong…

Twilight tried to peel her eyes away from the poofy plot against her. She looked to the wall, and was aroused by the whips and paddles hanging off of it. She looked across the room, and was aroused by the sight of the diaper pail, remembering the sensation of being inside. Finally, she looked over to Trixie.

An angry glare greeted her. Twilight almost shrank beneath Starlight’s padding when it hit her, but she knew the daggers shooting out of Trixie’s eyes would only follow her.

It wasn’t hard to figure out why she was so upset. She’d specifically told Twilight to leave Starlight alone while they were in the dungeon. As for why Trixie demanded that, Twilight didn’t know, but clearly it was important to her. Important enough to redouble to efforts to break free of the X frame after having given up quite thoroughly before.

But… well, this wasn’t Twilight’s fault. She couldn’t help what the AI forced her to do. And she also couldn’t help it if she enjoyed it. Surely Trixie could understand that, right? Twilight buried herself deeper into the diaper to hide from the glare.

“Mmmrrph!” Starlight shuddered, Twilight’s action causing just a brief lapse in concentration. She threw back her head as the strain became too much. Her tail hiked skyward and a loud fart slapped Twilight across the face.

“Mmm…” Twilight sighed as a new flavor of stink hit her nostrils. It was finally happening.

Starlight lost her fight.

Another fart punched Twilight’s nose, and then the real party started. Starlight groaned and struggled against her binds, but all it amounted to was a little bit of rocking.

When the diaper came back to Twilight is smacked her right in her chest. It was already a little squishy, with Starlight’s induced accident taking full control.

As the pink mare grunted and whined, her diaper bulged out, smothering Twilight. Poop rushed out of her in big, chunky logs. The warm feeling spread all over Twilight’s chest. The padding squished against her coat, now lumpy from the mess. More mush came pouring into it, and finally the white plastic was stained a permanent, deep brown color.

“Mmmhmmm.” Twilight snuggled the still filling diaper, nestling her snout into it and letting it contour brown padding around her face.

“Grrggh!” Starlight cried, shaking her flanks in a vain attempt to fling the diaper from her body. All she succeeded in doing was smushing it against Twilight’s face, which only felt good for one of them.

“Mmph! Mmrrph phrrgh!” Trixie shouted from across the room, helpless to intervene as her arch nemesis smothered herself in her best friend’s dirty diaper.

“Well isn’t somepony jealous,” the AI noted from Trixie’s enraged growls. Hands descended near her, cause the mare the shrink back in fear. “Let’s fix that, shall we?”

Twilight wasn’t even paying attention. She was face deep in Starlight’s filthy padding. Her accident was sputtering to a close, devolving into wet farts as her plot finally took a break. The heft of her diaper weighed down on Twilight’s chest, the only thing keeping it from sagging right now.

She kept pushing herself against the warm, soft, gooey padding, ignoring Starlight’s muffled cries for just the opposite. Twilight knew she’d never get a chance to do something like this again, so she was going to enjoy it. Besides, even if she wanted to stop its not like the hands would just pull her away.

In fact, they encouraged her to keep going. Fingers dug into the back of Twilight’s mane again and pushed her face even deeper into the padding. She cried out in delight. Starlight cried out in disgust.

Other hands had her wrap her fore legs around Starlight’s plot, giving it a big hug. Resisting the extra love, Starlight tried escaping again, but could still only rock herself back and forth.

“Mmmph.” Twilight’s eyes rolled into the back of her head as the dirty padding pulled back and smushed against her face over and over again.

squish. squish. squish.

Eventually Starlight decided that it felt too gross to keep going and stopped. Twilight was about to rebury herself in the stink, when a new hand appeared at her side. She watched it curiously as it reached up and unhooked her pacigag, pulling the rubber nipple from her mouth.

“Hey,” she whined.

“Now Twilight, be sure to thank Starlight for giving you such a lovely present.” The hand squeezed Starlight’s dirty padding, as if to explain what it meant by “gift”.

“Um… thank you?” Twilight said.

The AI chuckled. “Not like that, silly filly. With a kiss.”

“O-Oh my…” Twilight was suddenly grateful the gag was off now. What a perfect idea!

“Mmph!” Starlight didn’t seem to think so. But Starlight didn’t get a say in the matter.

Twilight pursed her lips, and threw herself at Starlight’s messy rump. The still warm, lumpy padding squished around her cheeks as she pushed herself in deeply. The already intoxicating stench grew stronger as it burned her nostrils. The contained mush pushed and spread below the padding. Twilight moaned. Starlight groaned.

She peppered Starlight’s backside with kisses, pushing as deeply into the dirty diaper as she wanted. She could always say the AI had forced her to later.

Her face carved out its own impression on the brown padding, forcing the mush within to move about to make room. Poor Starlight wiggled and screamed as her mess drifted further down the diaper, but there was nothing she could do while Twilight enjoyed herself.

“Good girl, Twilight,” the nursery purred. It pried her from Starlight’s diaper, letting the padding fully sag under the heft of the accident. Once again, Twilight was denied the pleasures of diapers.

“Come on!” She whined as the nursery set her down on Starlight’s back. Twilight’s spread legs easily straddled the unicorn’s back, and as she was set down her padding bunched up against her crotch. “Unf!”

She could feel her eyes roll back as so many sensations flooded her already desperate marehood. This might just push her over the edge.

The AI put Starlight’s reins in her hooves and Twilight gladly took them. It’s hands snaked around and sank into Starlight’s bloated padding as it pushed her forward. “Why don’t you too play together for now. Trixie needs some attention too.”

As the rocking began, Twilight bounced ever so slighted, pushing her marehood into her padding over and over again. She huffed loudly. Practically drooling, she tilted her head back and flicked the reins, riding Starlight in more ways than one right now. It was pure bliss.

But Starlight wasn’t enjoying herself nearly as much. She kept rocking, aware there would be consequences if she didn’t, but her head stayed low and her ears folded down. Tinged red cheeks could be seen even from Twilight’s angle.

That was enough to give her pause. Even through her haze of horniness, she realized just how wrong this was. She was taking advantage of Starlight! That wasn’t even something she could pin on the AI, that was all her.

Her bouncing halted, even as her marehood begged for more. Twilight fought down the lust and ecstasy and shook her head. She had to come to her senses already! What was she doing? She hadn’t even tried to escape yet.

“Starlight…” she gasped. “I… I’m so sorry!”

“Mmmm…” Starlight barely responded. Just by her tone, Twilight could tell. She felt violated. Betrayed. And… something else, maybe?

Guilt welled up in Twilight. What have I done?

“MMPH! MMRMPH MMRRR PHMM!”

Twilight’s attention was snapped over to Trixie, who was fighting a series of hands as the pulled her from the X frame. The AI only chuckled at her struggle.

“Such a noisy filly,” It noted. A hand tugged at the pacigag in Trixie’s lips. “Maybe we need to find a new way to silence that loud mouth of yours.”

“Hmm?” Trixie’s tail curled to protect her diapered rear, mind immediately springing to spankings as a possibility.

But the AI’s true intentions were far more sinister. And hot.

A hand popped out of the wall near the diaper pail. Trixie didn’t notice at first, but Twilight did. She watched, wide-eyed, as the hand dipped in and withdrew a used diaper. The ripe, balled-up lump of padding was brown and bumpy, but packed tightly together. It wasn’t nearly big enough to be the one Trixie had used last night, nor the one Twilight had filled up from two nights ago. And it didn’t look old enough to be one from an earlier session of hers, come to think of it.

Oh no. Twilight had deduced the source of that used diaper. It was first one Starlight had soiled. And if the AI was doing what she thought it was doing...

The pacifier was pulled from Trixie’s mouth, who immediately launched into a tirade. “Put Trixie down this instant! You stupid pervert machine, The Great and Powerful Trixie is not your plaything! If you touch her again, she will destroy you and—” A finger booped her nose, a playful chuckle cutting her short.

“Oh, Trixie. What a way with words you have. Let’s fix that for good, shall we?” Another new hand appeared, sporting a bland rubber strap to replace the pacigag being taken away. At first, Trixie could only stare in confusion. But then the hand with the used diaper entered her field of view.

The realization dawned on Trixie’s face like an ant recognizing the boot about the crush it. “No.” It was much softer than Twilight expected. Almost scared. But that was soon fixed. “No! No no no no NO NO NONONONONO!”

Trixie thrashed and screamed. The number hands holding onto her doubled. Then tripled. And even then Trixie still refused to give up. Not as long as a dirty diaper was nearing her mouth.

“MMM!” Starlight screamed into her gag. She turned back to look at Twilight. Whatever awkwardness that lived between them was tabled for now. Pleading, desperate eyes begged Twilight for one thing: Stop this.

“Don’t!” Twilight croaked out, so weakly even she wasn’t convinced. Maybe… just maybe a small part of her didn’t mind Trixie suffering a bit. Especially after everything she’d said to her since discovering the nursery.

Predictably, her protest was ignored, as was Starlight’s and Trixie’s. The AI kept shoving the used diaper closer and closer, seeming to move in slow motion.

“Stop! No no no! Stop it now!” Trixie’s screams had deflated to mere whimpers. She shook her head, moving her mouth anywhere that the diaper wasn’t aimed at, but the heat-seeking missile tracked down her lips no matter where they moved. Eventually it was too close that Trixie saw fit to keep her mouth closed tightly.

As if that would stop it.

The AI pressed the diaper against Trixie’s lips. The poor mare just about cringed hard enough to turn into a black hole. It was maybe the first time in her life Trixie wanted to keep her mouth shut, but she wasn’t going to be allowed to.

Eventually the diaper broke through. Whether it was because the hand had enough force behind it, or Trixie was worried the compressed diaper was about to start leaking and let it in was unclear. But what was clear was that Trixie gagged as the ball of brown padding pushed her jaw open. Starlight protested beneath Twilight, even as she continued rocking.

The diaper inched into Trixie’s mouth. A quarter of the way. Halfway. Trixie’s screams became more and more muffled, even as her jaw was forced open further.

Finally it was all the way in. Or, as in as it could be. A slight bulge of stained padding poked out beyond Trixie’s teeth, but the rest was sitting comfortably in her mouth, enjoying its new home. The same could not be said for The Disgusted and Shrieking Trixie, who was fighting harder than ever to escape the dungeon’s hands. But like always, she got no where. She wasn’t even able to spit the diaper gag out. A hand brought down a thin rubber strap and affixed it around her snout. That diaper wasn’t going anywhere, and Trixie’s struggles subsided as she put more and more energy into stopping the strap from forcing her to bite down on the diaper.

At least the taste of soap was now a distant memory for her.

“There, much better.” A hand stroked Trixie’s mane. “And so quiet now, too.”

“Gggh!” Trixie wailed, tugging at the hands that held her.

“Why don’t we make you still, too.”

“Errff?” Trixie barely had time to react before she was whisked over to the pillory.

“Hrrfph!” Starlight yelled, throwing her body to the side. She managed to lifted one of the curved bindings up before it smacked backed down.

“Hush.” The crop near Starlight’s rear flicked, delivering a powerful WHACK! to the mare’s already devastated rear. “We’ll deal with you in a moment. It’s Trixie’s turn right now.”

Starlight whimpered as her plot glowed a bright red. Twilight lurched as her ride decided to speed up to avoid another smacking. Her diaper grinded against Starlight’s back, marehood quivering deeply into the padding. Twilight moaned, forgetting she didn’t have a gag of her own for a moment and filling the room with her pleasured gasps.

She barely paid attention to Trixie having her head and hind legs locked into the pillory. Her eyes were too busy rolling into the back of her head. She was inching ever closer to orgasm once again, and all the previous denial had her drooling at the prospect. If she didn’t cum this time, she’d go mad.

While Twilight had the time of her life riding Starlight, Trixie was definitely not as a hand plucked a new paddle from the wall and dangled it in front of her teasingly.

“Now, wittle Twixie.” The AI moved the paddle out of the trapped mare’s view and toward her rear. It pressed the paddle against the seat of her diaper, smushing puffy padding as it rubbed it back and forth. “I want you to fill up your diapee. Can you do that for me?”

Trixie whined into her disgusting gag and shook her head.

WHACK!

No warning, no build up. Trixie was just spanked. Hard.

“How about now?”

Trixie gurgled something unintelligible. Probably a swear, or a pained groan. She shook her head defiantly, even as her ears folded down.

WHACK! WHACK! WHACK!

“MMmph!” Starlight cried. Trixie’s muffled wails were drowned out by the blows to her backside. Even her thick diaper couldn’t protect her from the powerful swings of the mechanical hands.

But Twilight didn’t show the same concern as Starlight. Lost in the horny bliss of the moment, she only comprehended one thing: the AI’s request to fill a diaper.

Perfect… she thought through the haze of arousal. If she loaded her pampers, she would be sure the climax sooner.

So while Trixie’s plot was paddled, Twilight was ready to stink hers up. But her plan hit an immediate snag; she didn’t need to go.

Her breakfast had yet to make its way through her, no matter how much she pushed. Starlight rocking was beginning to slow down as her worry for Trixie peaked. Twilight was about to lose her chance to climax, and that was all she could think about.

Come on! She grunted, pushing. Come on!

Nothing. Try as she might, Twilight just couldn’t poop herself right now. But she did feel pressure after all. Not from her bowels, but her bladder.

There we go, Twilight thought, realizing she did actually have to go to the bathroom after all.

A far easier job than making herself poop, Twilight almost instinctively relaxed her bladder. Pee slipped out of her and into her diaper, warming it as it soaked into the padding. The squishy feeling spread all along her hindquarters and up to her marehood, reinvigorating it.

“Ahhh…” Twilight sighed happily. She couldn’t even hear the trickle of pee over the sound of Trixie’s spankings, but just the sensation was enough.

Tingling away, her marehood was getting all excited just sitting around now in her warm, squishy diaper. As Twilight’s no-so-accidental accident continued to soak her diaper, she started grinding her pelvis against Starlight’s back. Nothing else was going to help her climax, after all.

A wayward hoof drifted down her her crotch to partake in the decadence. Twilight started breathing heavily. Her marehood burned. It had been denied for so long.

“MMPH!” Starlight’s cry of disgust smacked Twilight across the face.

“U-Uh…” She focused back to reality, seeing an angry face glaring back at her. In the distance, Trixie’s plot was still being brutalized. Twilight cringed. As much as she wanted—needed—to orgasm, she couldn’t believe she’d let herself get so wrapped up in it. Weren’t they supposed to be escaping? She fought down her marehood’s pleas for release. “S-Sorry!”

Starlight snorted, not buying it. Twilight had soaked her diaper enough that no doubt her back was a little wet now. She knew this hadn’t been in the moment; it was premeditated.

“I am!” Twilight cried over the loud spanks across the room.

WHACK! WHACK! WHACK!

“Just go potty already, Trixie. You don’t have to be so stubborn,” the AI taunted.

“Nnnngh!” Trixie angrily shook her head. She couldn’t even bite down to avoid the pain given what was in her mouth. She was forcing herself to tough it out. A red bottom was better than a brown bottom in her mind.

“Fine.” Just like that, the spanking stopped. Starlight turned back around to see it, she was so surprised. Twilight was shocked too; she couldn’t believe the AI just gave up like that. Was it actually struggling a little bit? Now that Twilight was thinking clearly—clear-ish—again, she wondered if this might be the opening they needed.

If only Starlight or Trixie could talk right now. Then they might be able to distract the AI like they’d originally planned.

“If you won’t go, sweetie, then I’ll have to resort to plan B.”

Twilight’s stomach dropped. She even momentarily forgot how horny she was just then. Plan B? She thought. In all the times she’d experienced the exact program Trixie was stuck in, there had never once been a plan B. She’d never created one.

Was the AI… writing its own programs now?

She gulped. If it was that far along, then this was worse than she thought.

“We have to get out of here!” she whispered to Starlight. Hands snaked across the room, their destination unknown.

Starlight snorted. “Nnn derr.”

Twilight shifted atop her, looking down. She could leap off, but the AI would just punish her for it. As much as that made her marehood quiver at the thought, they couldn’t afford it if it decided to tie her up or something. Not when she was the only one who could turn it off. There original plan was still their best shot. And if Trixie couldn’t overload the AI with requests, then it would have to be Starlight.

“Hang on,” Twilight said, lowering her head next to Starlight’s. “I’m going to get your paci out.”

“Hmm?” Starlight asked.

Twilight pushed her horn in between Starlight’s cheek and the rubber strap. It was hard to angle it just right, but after some struggling she got the tip of her horn poking right at the rubber. She started pushing and swing her head, hoping the tear the strap off.

It proved to be difficult. Even with Starlight tilting her head in the opposite direction to up the tension on the strap, they couldn’t seem to make any progress. It was strong, but Twilight wasn’t ready to give up. She ignored her screaming marehood as it begged her to get back to grinding against her friend and kept going.

As the two of them continued to struggle with the strap, the AI had made significant progress on its “Plan B”. Twilight heard a cry of disgust and when she looked up she saw Trixie being teased with yet another dirty diaper from the pail in her face.

“If you won’t make a mess in your own diaper, we’ll just have to borrow this one,” the AI declared. Trixie raged into her padded gag, complaints falling on deaf ears.

Twilight almost stopped fighting the strap, realizing what was about the happen. “Oh no…”

Hands pulled down Trixie’s pristine diaper, exposing her glowing red plot to cool air, if not for just a moment. Trixie kicked in protest as the dirty diaper was brought around to her hindquarters.

“MMPH!” Starlight cried, now catching on.

Trixie’s legs were held down and her tail forced up. The nursery carefully unwrapped the used diaper. It was so full that Twilight was certain it was the one she had decimated right before getting trapped down here. She cringed, hoping Trixie would never find that out.

The opened diaper’s smell spilled into the room, amplifying the stench of manure. All three mare’s wrinkled their noses. Trixie whined loudly.

“MM! Mmmr! Phrrphff mmph!” Starlight protested on behalf of her friend. She shook her head, rocking back and forth as she tried to demand it stop.

Twilight felt her horn finally poke through the strap. “Almost there!” she cried, pushing harder. If Starlight could talk she might be able to distract the AI in time.

But it was already too late.

The AI brought the re-opened diaper to Trixie’s battered plot. The mare struggled and cried and fought, but nothing was going to delay the inevitable. The hands pushed the used diaper against Trixie’s rear. The mush squished against her, and her whole body shook in disgust.

The AI wrapped the diaper around Trixie’s waist, as though it was any other change. Trixie’s muffled screams grew increasingly high-pitched, but they didn’t stop the messy diaper from being re-taped.

It was done; Trixie was wearing Twilight’s old, used diaper.

She sniffled and whined, but the AI ignored it. Placing a hand right at the seat of the mess, it squished it in. Trixie yelped, body stiffening.

“There we go,” the AI said. “Now you’re nice and messy.”

The hand didn’t leave Trixie’s plot alone. It kept squishing and fondling the dirty padding, while the attached mare squirmed and moaned. As gross as the sensation must have been, Trixie undoubtedly couldn’t escape the fact that she’d already been so riled up beforehand.

“Mmm mm!” Starlight cried, rocking harder as she tried to break free of her bonds.

Finally, the strap snapped. “Yes!” Twilight cheered. Starlight spat out her pacifier, finally free. “Ask it to do something to you and Trixie!” Twilight pleaded. “Then I can get to the control panel and shut it off.”

Starlight glanced from Trixie, struggling in her pillory, back to Twilight. “Are you?”

“What?” Twilight squeaked.

“Are you actually going to shut it off?” Starlight asked. “Or are you just going to get ‘distracted’ again?”

“I wouldn’t— I mean, I won’t!” Twilight insisted. Was Starlight seriously doing this now? Twilight knew she probably hadn’t earned all that much trust… and the grinding probably hadn’t helped... but they didn’t have time to argue!

“Gggph!” Trixie cried from across the room. The hand was now fondling… other places.

“Trixie!” Starlight cried.

“I promise I’ll turn it off,” Twilight said. “I mean it. You just need to put up with this a little longer.”

Starlight bit her lip. She still looked unsure, but her alternatives were even less promising. If nothing else, she clearly regretted coming into this room. Squeezing her eyes shut, she sighed. “Fine.”

Twilight relaxed a little. “Thank you.”

Starlight looked up to the ceiling, not entirely sure where she should address her request. “Uh… Mistress?”

“What is it, Starlight?”

Her face scrunched up. “I… uh… I want…” She groaned. “Can you do something special for me and Trixie?”

There was a pause, one long enough for a million ones and zeros to devise an algorithm for maximum pleasure.

“Aww, you like Trixie? Is that it?” the AI teased.

“U-Uh.” Though Twilight couldn’t see her face, she could tell Starlight got a little red from that. “I mean…”

“Just say yes,” Twilight encouraged. It really didn’t matter at the end of the day, they just needed to get free.”

“Yes?” Starlight squeaked out.

“Phrrff?” Trixie replied from across the room.

“Do you wanna kiss her really badly?” The AI asked.

Now the tips of Starlight’s ears were red. But she played along for the sake of the plan. “Yes…”

“MMMPH?!”

“Okay then sweetie. Your Mistress has just the thing for you then.” More hands appeared from the wall behind them. Starlight whined in the back of her throat. She had no idea what she’d just gotten herself into. At this point, neither did Twilight. But she wasn’t going to stick around for it.

As the hands unclipped Starlight from her bonds, Twilight dismounted. Slowly, of course. She couldn’t risk drawing attention to herself. She just ignored the soft, squishy feeling of her padding and made it to all fours. Luckily for her, it worked out.

The AI seemed preoccupied getting Starlight out of the rocking horse binds. It even needed to call in more hands to undo the straps it had tightened so much. Across the room, Trixie was getting a similar treatment. With her pillory, at least. The two dirty diapers she was forced to live with.

Twilight slinked away, somehow still undetected. Or the AI was just letting her think that. She shuddered at the possibility.

Starlight, now released, offered a few futile kicks before hands snapped their controlling grips around them. She was brought to the center of the room, where she met up with Trixie.

The gagged mare could only offer sheepish looks and muffled grunts. Her jaw was straining to avoid the dirty diaper in her mouth, and failing miserably at that. Her eyes kept trying to meet Starlight’s but both mares looked away. It was only very awkward.

“You two are so cute together already,” The AI cooed. It only made the two blush harder.

And then they realized where they were.

Trixie saw it first, her alarmed grunts causing Starlight to look down. Her eyes widened when she saw it: the wooden horse.

They were just barely above the masochistic device, padded crotches aimed at the pointed edge. All the hands had to do was lower them.

Twilight wanted to watch. She really wanted to watch. But Starlight and Trixie’s cries of distress were enough to remind her what her goal should be. Ever so carefully, she started to waddle.

Trixie and Starlight didn’t have the luxury, though. Their forelegs were forced into the chains just above the “horse” and they found themselves slowly lowered.

“I-I’ve changed my mind!” Starlight protested. “I don’t want—AAH!”

Their soiled diapers made first contact. The wooden point dug deep into their mushy padding. As the two where lowered, more and more of their weight was put on just one point: their marehoods.

“Oh Celestia!” Starlight cried.

“MMPPH!” Trixie wailed, resisting the urge to bite down.

Their forelegs were stretched well above their heads thanks to the chains. Metal clamps locked down their hind legs once the AI was finished lowering them. Both mares were forced to sink into the edge, as dirty padding dug into them. They each tilted their heads back and moaned, but whether is was out of disgust or pleasure it was hard for Twilight to say.

She told herself not to look. But a wayward glance back distracted her just long enough to trip. Twilight landed with a squishy crinkle. With no way to know if the AI had caught on to her, she scampered into a crawl and hoped for the best.

Meanwhile, Starlight was expecting the worst. Hands gripped her sides, with another pair mirroring the action with Trixie. They bounced the poor mares against the wooden edge over and over again. Stifled moans filled the rooms. It felt so gross as their messy padding smushed against their inner thighs. But it was impossible for either to deny the feelings it stirred in their marehoods either. The blushes burning a permanent shade of red on their cheeks was proof enough of that.

As the squishy bounces continued, more hands descended on the two. Starlight’s eyes widened as one went for her crotch, and another at her rear. Fingers fondled away, only adding to the mounting tension in her privates. “N-no!”

Trixie suffered the same fate, but in silence. Her diaper gag reduced her to muffled wails of pleasured displeasure.

“Getting comfy, little girls?” The AI teased. It pushed them closer together.

Starlight’s pink fur mingled with the fluff of Trixie’s chest. Their noses practically touched, forcing Starlight to smell the rancid diaper in her friend’s mouth. As if the stench of her own mess hadn’t been enough.

And Trixie was suffering even more. The messy diaper that wasn’t even hers kept pressing deeper and deeper into her. Her whines became more guttural and base.

Both mares had been teased constantly by the presence of their diapers, and even more so since entering the dungeon. Now, neither could take it anymore.

“Gah!” Starlight gasped. “Puh-Please!”

“Ready for your kiss?” The nursery asked. New hands grabbed the back of their heads. And pushed them together.

“Wait!” Starlight begged.

Twilight reached the wall guarding the mainframe, but couldn’t resist looking back.

Starlight and Trixie’s lips met. The diaper gag, which Trixie had been forced to endure alone, now found itself shared. It pressed Starlight’s tongue back as it pushed into her mouth. Her protest became muffled.

“Yes, good girls.”

Starlight wriggled her body, trying to flail away from the experience. Oddly enough, Trixie seemed to relax into it. Had she just accepted her fate? Or…

Lust and jealousy fought for supremacy within Twilight. Why couldn’t she be up there with them? She shook her head. No! Concentrate.

She peeled away from the horny display. Her eyes focused on the small crack in the wall, just below the AI’s glass “eye”. Finally, this could end. Regrettably, this would end.

Twilight pried at the opening until a whole section of the wall swung open. Nodes and circuit boards and wires all criss crossed before her eyes. Especially a thick red one at the forefront of it all. All this circuitry was the beating heart of her AI. Her FOAL 9000.

“Twilight?!” Uh-oh! It had noticed her after all. Hands steered away from the bound mare’s crotches, though their dirty kiss was forced to continue. Other hands practically rammed through their metal doors, pouring out of the ceiling and walls as they all rushed to stop her. “Bad girl! Get away from me!”

Twilight yelped. She turned back to the tech buried into the wall. She didn’t have a lot of time. In fact, she had precious milliseconds to act...

Author's Note

Reader’s Choice

Cut the wire | Hesitate