Within the confines of the first metal cylinder bright lights shone down powerfully on the greatly-expanded form of Saddle Rager. The Power Pony was bound properly with cold-forged phlebonium shackles and chains, which did not give even as she roared and thrashed about. Her rear end was kept in an even more restricted state by a serious of phlebonium bars, which also kept her monstrously sized rear end pushed up and out.

Her comparatively tiny wings flapped uselessly as she made her bid to escape her perfect confinement. Her uniform, as was usual during her transformation, was in tatters. But most of the damage was centered on the rear portion, which had been completely ripped out, exposing her gargantuan, gaping vagina. Several of Mane-iac's henchcolts regarded the titanic twat with desire, and fear.

“Let's fuck that thing! We could probably all get in there at once!” shouted a scrawny white earth stallion at the rear of the group, his red mane parted straight down the middle.

“Not yet! Look at this freakshow! She's not gonna make it easy. We need her to get, you know, back to being that little, sweet piece of ass she usually is,” insisted a burly white unicorn stallion, his own blue mane swept pack in a collection of spikes.

“Well, look, we were told to tease and torment her with everything we had. Let's just shove a big rubber dong in there and be done with it,” said another white unicorn, a rotund and squat fellow with his green mane done in a sensible bowl cut.

“Gotta be a couple...” The spiky-maned unicorn insisted. His magic quickly levitated up two rubbery dildos. The things were of a size vaguely comparable to a stallion, but shaped as simple, smooth, rounded-tipped things. He activated both of them, setting them to buzzing, then slowly rubbed them around Saddle Rager's fat sex.

The lips were nearly large enough to allow a pony's head to slip in. Giving her a hoof-job likely would have been the very least required to give her any physical sensation. That didn't seem to be the initial intention of the unicorn. He maneuvered the buzzing sex toys along the inner and outer lips, parting the juicy gash to expose the clutching, muscular tunnel within. He made a good series of passes, moving up and down the pink, sensitive lips, getting a few lustful, bestial moans out of the giant mare.

Once her had gotten Saddle's juices flowing, easy to do given her mind was easily pushed to an instinctual, shameless place, the spiky-maned stallion turned the vibrating tools to her massive clit. The bulbous button almost resembled a small apple in its engorged and mutated size. The rumbling, rounded tips of both dildos pressed in firmly near the middle of the sides and then slid right down to the root.

Saddle responded with a guttural roar of pleasure, thrashing wildly about in her bonds. Only the rare and powerful nature of the bindings kept her restrained. She had not climaxed, but she seemed to be getting plenty out of the treatment. Her rear end waved, demanding more, her sopping sex winking at the stallions, offering them the perfect parking spot for their cocks.

The stallion teasing her nearly let the toys drop, but thought better of the idea for a moment. He pulled them back and pressed them firmly together. With a surge of magic he rammed them forward hard into the winking passage, which responded as any eager, sensitized passage might, with a powerful squeeze.

The sound of crunching forced all the stallions back, and made the spiky-maned one drop his magical field. The two suddenly still toys remained within Saddle for a bit, moving back and forth with the contractions of her muscles, before they were practically spit out. The two rubber items had had their works quite thoroughly crushed, and the outer skins were badly deformed and torn, looking split in several places.

The three stallions were still a ways back, and looked on the destroyed dildos with stunned awe. “And you wanted to stick your dick in that?” The fat unicorn asked of the earth stallion.

“I didn't know! I thought all her muscles were outside. I figured she was a buttery smooth lay on the inside!” The earth stallion insisted.

“More dildos! Bigger ones! We can beat her! Maybe if we get her off she'll go back to being timid!” The burly unicorn reached out with his magic, the other unicorn helping him out. Their next batch was far more intimidating. They were all properly pony shaped, and just slightly bigger than the largest natural pony dick. They were quite rigid, the rubbery exterior masking a firm plastic and metal core.

The six ersatz erections were roughly slapped against Saddle's muscular thighs and ass, the things bouncing off her with barely an effect. Even a solid series of slaps against the lips of her pussy caused nothing more than more winking and a heavier flow of musky juice. Finally, all six heads were pressed solidly against her apple-sized clit and slowly rotated, tweaking the huge thing, mashing in at intervals to increase the pleasure of the action.

The thrashing and struggling increased, Saddle bellowing out her pleasure, head thrown back and eyes rolled into her head. Even so she did not peak. She was having fun with the concentrated pleasure but she still insisted on taking more and more. She was almost threatening to rip her bindings out of the walls.

“Fuck her! This should do it!” The burly unicorn called out. He and the other unicorn used their magic to press the six dildos together, pulling them away from her clit and mashing the six flared heads against her winking, oozing sex. They forced the rigid poles in with a bit of effort, thrusting and twisting them around, angling them so each rotation would grind one over her clit.

Saddle screamed and moaned, arching her back as much as she could and pushing her rear end back to meet the six rods. Her walls rolled and pulled on them, eventually squeezing down again, with the sound of crunching plastic and warping metal. Her pussy mashed the dildos and shoved them out as had happened before. The rubber surfaces were split again and they were twisted all out of shape.

The three males looked at that with great fear. The plump unicorn shook his head slowly. “This is... I don't want to fail the boss, but... that chick is a freak. Nothing gets her off!”

“Look... let's just try one thing. It's crazy and stupid but we need to do it, just to see,” The earth pony insisted. He opened a sealed door on the side of the cylinder and vanished outside for a moment. He returned dragging a cart, on which was a low, metal protective shield and... a small, short-range missile. The weapon was short, but incredibly fat, with a rounded tip and three fins on the back. It was painted black on the nose and red behind, and was on what looked like a remote-controlled three-wheeled cart.

“What... the buck... are you thinking?” The burly unicorn asked.

“I read about her. She's... impossible to damage. This thing is thicker than any dildo, it's strong, and... I don't know, as long as she can't get hurt this can't possibly be a bad idea,” The earth pony explained.

“You know what? We should try,” The fat unicorn said, using his magic to set up the shield and place the missile on the level with Saddle's waving rear.

“It was your idea... unless it works, then it was a group effort, inspired by me,” The burly unicorn said, getting behind the shield with the other two once it had been set up. “This was your idea, so you do it,” he said, passing off the control for the missile's cart to the earth pony.

“Alright... let's... buck it, let's do it...” the earth pony said with some resignation. He pushed the control forward hard and peeked from behind the shield to make sure it was still aimed right. He watched the rounded head make contact with Saddle's sex and slide in.

None of the three saw the massive missile plunge as deep as possible into the thrashing, moaning mare, the whine of the wheels telling the earth pony to pull it back, only to have him plunge it back in before it could get too far out of Saddle. He repeated the action over and over again, with increasingly shrill and breathless moans and screams of passion from Saddle as response.

“This might work. Maybe she can't crush-” The earth pony never got a chance to finish his sentence. There was a shriek of metal, an explosion and a deep shriek of pure orgasmic delight. Just offset from that was a heavy splash of liquid and the thump of metal against the shield the three stallions were behind.

After a moment of hiding the three looked out from behind the shield. The missile looked to be in two pieces, the rear part thrown off the cart, the flattened top portion laying on the ground in front of the shield. The shield was also covered in musky mare juice, lightly flecked with some shrapnel, but there wasn't much. There hadn't been as much fragmenting as they had feared.

Saddle was still there, but looking quite different. The monster mare was gone. Hanging in her oversized bonds was the panting, whimpering, slowly struggling normal version. Her eyes were closed and her wings limp at her sides. Her sex was completely unharmed, so far as could be seen, the lips of her sex flushed, her clit engorged, and honey slowly leaking down her thighs.

The stallions tentatively approached, stepping around the puddles of fluid and pieces of broken dildos and missile. The thickly built unicorn reached her first, and used his magic to scan over her dripping pussy and send little waves of energy within. “Nothing. No shrapnel within. Looks like she washed out what little was produced,” he said with a relieved tone.

“Perfect! It takes her forever to get mad enough to get back into a huge state,” The other unicorn said, his magic working over the chains and bars, sliding them into a different configuration, pulling over different shackles to properly accommodate Saddle's new, smaller stature.

The whole time her bonds were being replaced Saddle made small sounds, little mewls, whimpers and soft moans. The slightest brush of air from being moved around seemed to make her sex wink and her body tremble. She barely moved anything, however, looking thoroughly drained and too exhausted to offer any kind of resistance. The confluence of her rage power and her orgasm had sapped all of her strength.

She was soon enough back in a 'receptive' position, front down, ass up and out, legs pulled well apart and tail tied out of the way. The three stallions were rubbing over her spread lips, smirking as the Power Pony whimpered and begged for them to stop, all while her voice was thick with arousal and her words occasionally lost in deep, hot moans.

“Now that she won't crush our dicks, I'm up,” the earth pony said with an eager, lustful tone.

“Hold it! I'm the lead here, I should go first!” The burly unicorn insisted.

“I was the one that came up with using the missile to get her to cream herself. You even told me it was my idea if it failed. Well, it didn't fail. So I get to fuck her first. You don't like it, tell the boss. You know she's probably watching,” The earth pony said.

The lead unicorn looked around with some paranoia and stepped back, a petulant scowl on his face. “Then get off in her quickly. If I have to get sloppy seconds then I don't want to wait too long for them!”

The earth pony didn't waste any time. His long, off-white cock was already standing, thick and throbbing, against his belly, occasionally thumped against it to send out a thick jet of precum. He approached Saddle's rear end and leaped up, roughly grasping her around the middle with his forelegs, and prodding at her backside, hips twitching madly.

At the first feel of her sloppy gash he rammed forward hard, tossing his head back and nickering triumphantly. “Damn! As a monster she might be loose but this little cunt is as tight as I thought it might be!” He forced his way down the clutching passage, fighting for every inch he roughly jammed into her. He made sure to squeeze and pull on her midsection as he used the muscular power in his hips to mercilessly push himself to the hilt.

Securely settled within he went to town on her, repeatedly striking her thin, toned derriere with his unforgiving hips, drawing out cries of pleasure and further demands to be set free and for the forced fucking to cease. Her words went unheeded, the earth stallion driven to take the opportunity to have at one of the mares that typically got the better of him. He reamed her pussy hard, and savored the squeezing and trembling, the virginal tightness of the close, rolling passage.

A whinny of pleasure announced his orgasm, balls pulling up tight against his body as he unloaded his seed deep inside Saddle's struggling, moaning form. He pulled out in a single hard, smooth motion, softening dick giving a bit of a 'pop' as it left the clutching passage, a few stray drips of mare juice and seed spattering on the floor.

As the lead unicorn trotted up to take his turn, Mane-iac pushed Hum Drum along towards the next metal cylinder, a lustful smile on her face and a single mane tendril slowly petting over her costume-covered mound. “Come along. You have more friends to see...”

Author's Note

The missile bit was a late add by Bronystories. It works for the situation and adds just the right atmosphere.