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Celestia awoke to see the sleeping face of her daughter Sunset who is sleeping next to her. Her daughter who has been missing for over a year is back with her. The familiar weight of the massive body spooning her, shattered any dream of hers that they’re back home. Both are now nothing more than the sex slaves of their pony counterparts, her counterpart is spooning her and Sunset's counterpart is doing the same with her.

Sunset told her about how she was just leaning up against the statue when she just fell into it and out of a mirror in the royal bedroom. She was quickly found by a maid who immediately raped her, joined by other maids and guards who heard the rape. By the time pony Sunset found her counterpart, she was nearly dead.

Celestia remembers the gangbang of her students and the visiting schoolgirls from Crystal Prep. As she was raped by her counterpart, sitting on her throne she had look out across the spacious and high-roofed throne room. Through bloodshot, half-opened eyes she observed a cavalcade of debauchery before her. The massive orgy that had been inflicted upon her female students and staff. Hundreds of young women were in the process of being raped and ravaged by a multitude of inhuman assailants. The ponies were drilling and pounding her students and staff like rabid and ravenous animals. She saw barely conscious women being slam-fucked by intoxicated monsters whom pummeled them with all the ferocity their drunken bodies could muster. The ponies possessed superhuman vigor and virility, they were able to thrust and lurch into them at lurid speed and maddening intensity. There wasn't a human female whom could resist their reckless assault, they all had harrowed, traumatized expressions that were absolutely malformed with fear and awe.

All of them are now kept as the castle as sex slaves. They’re kept lock in the underground chamber, made into a large dorm for all of them. The women all had to share the bedrooms with others, large showers and the toilets. The only clothing they’re allowed to wear are loincloths and tank tops. Allowing the ponies easily have sex with them whenever they want.

They are fed with plentiful and rich foods which has caused the women to grow much more voluptuous than they were before. Sunset who was already gifted, has grown larger since Celestia had last seen her. A curvy body much like her own, generously proportioned with a thick, firm bubble butt and big, proud breasts.

Celestia guest that Sunset now has H cup sized breasts which her own breasts has grown to K cups. Everyone has also grown thanks to the food which either are drugged or has a spell on it or just does it on its own. All of them have been branded with slave runes that prevent the, from fighting back, running away, and prevents them from killing themselves. The runes also would keep them ageless and healthy as on as there’s magic to fuel the rune. Sunset told her that she tried many times but she could never kill herself no matter how badly she wanted to end it.

Celestia could only hold her daughter who was lost to her, at least they have each other. Her begging and pleading as a mother to her counterpart, managed to have both mother and daughter to always be together. Even if that meant that they would be the royal sex slaves, off limits to anyone but the royal family and those who have their permission to use them.

Her sister Luna is also the personal sex slave to her own counterpart who has made a harness where her human counterpart would be strap to the front of her body. Human Luna’s arms and legs would be wrap around her larger pony counterpart’s torso, helped by the harness. And while strap together, the Luna pony’s cock would be stuff inside the human cunt.

Cadance is also the personal sex slave of her counterpart, along with the futa Shining Armor. The two futa ponies are always double teaming human Cadance, having her spit roasted between them or have her the meat in their sandwich. They have completely broken Cadance with their insatiable sex drives, using their giant cocks and filling her up with their thick cum. Celestia remembers too well how the two broke Cadance, they been teasing and tormenting her ever since they got her to themselves. They would picked her up, laughing at her furious but completely ineffective physical resistance to them. They held her up in their omnipotent arms until the two girl openings between her thighs were even with their smirking faces. They then violated her puss and ass with their impossibly muscular, thick and slimy tongues until she was babbling, whining, and, yes, begging for relief, to be allowed to cum. They would stop right before she would cum, and waited for her to calm down before doing it all over again.

All of them are being trained to be sex slaves, knowing how to please their ponies masters. Celestia has seen her students being pump full of the delicious cum, the cum of the ponies are just delicious to humans and highly addictive. Just like how human sweat and smell is intoxicating to the ponies. The ponies would lick off their sweat and bury their noses in their armpits to smell them. Humans are living aphrodisiacs to the ponies with their sweat and scent, and the ponies are the same to the humans with their cum and milk. Turns out all the sexual mature ponies lactate which the ponies often have their human sex slaves drink their milk. Both the ponies milk and cum are rich in protein and nutrition, which is the other reason for the humans rapid body growth.

“Time to wake up and for the morning fuck,” said pony Queen Celestia. (1)

“Yes,” Celesita said as she felt the giant cock sliding inside of her for their morning fuck. Everything she was doing was for Sunset, so that she wouldn’t have to take both pony mother and daughter as she had to do since she came to this world.

Celestia was flip so that she was on her belly as the Queen lifted up her butt into the air as she started humping away. Beleaguered as she was Celestia could only bite her lips and take it like the helpless woman she was. The power in the Queen’s thrusts quickly intensified. Huge and powerful thighs propelled every dick-punch with feral ferocity. Celestia buried her face in the bed and screamed as a rhythmic pummeling was established.

The queen’s heaved her massive chest with every plunge of her hips. She practically bludgeoned the cunt hole mercilessly. Each flesh-digging pound savagely tore open inches of Celestia cunt, even the deepest depths of her dark and narrow orifices weren't spared its battering touch.

The queen’s oscillating hips made her hard abdomen begin to slam into Celestia’s shapely, well-rounded ass-globes. They flattened and bruised at the savage collisions. The fleshy butt-mounds were being brutalized just as her pussy was. The human female’s drerrie reddened and stung as if being struck by a wooden paddle while the protruding reproduction-stick speared into her cunt.

Celestia felt as if her brain scrambled from every impact and from cumming so much. Physically she could not keep up with her counterpart, sweating profusely at the tempo and ferocity of her rut. The strength of her thrusts rippled through her. If she did not posses such an firm handhold of her hips the statuesque Principal curvy frame would bounce and shake about haphazardly.

Celestia look to the side to see that the princess and Sunset were awake as well. Sunset had her face buried in a pillow as the princess is pounding away into her cunt, mirroring their mothers. The princess gave out a grunt as she fires out a blast of cum into Sunset, filling up her womb. Both Queen and princess weren’t trying to last long just cum as fast as they could, but even then the princess just didn’t had the endurance and stamina that her mother has.

“I’ll be in the bathroom the princess said as she pulls out of Sunset and a flood of cum came out of her used cunt.

“I’ll join you once I get off,” the Queen said as she continues to thrust into Celestia who is moaning as she cums again.

The Queen took 10 minutes to cum filling up Celestia with her vaster cum shot then her daughter the princess could produce. The Queen pulled out her much bigger cock out of Celestia and a even bigger flood of cum came out of her cunt, and the Queen left to join her daughter in the bathroom. Celestia couldn’t believe that Sunset had lasted this long having to deal with the mother and daughter. Sunset told her that the Queen rarely fucked her as the princess didn’t want her or her aunt to ruin her sex toy.

Celestia looks to Sunset next to her who is out of it as she is. Both of them are the sex toys of their counterparts and have to satisfy their insatiable lust. But they are better treated then the others who are used to reward the staff and the guards of the castle as long as they followed the rules the Queen had put up. Not wanting the human females to be broken and ruined by ponies who couldn’t control themselves. Sunset told her that the ponies who broke the rules, were not only fired but also had their cock and balls torn off.

She and Sunset on the other hand are only for the use their masters and no one else. Both the queen and princess do have their royal duties to preform and most of the days were spent alone. They have the royal chambers to themselves and the maids could be ordered to bring them what they wanted, they're more like pampered pets then sex slaves compared to the others. But they're still slaves and if they try to escape, Sunset told her the last time she tried she was mobbed by the ponies and was barely alive when she was rescued.

‘At least, I have you,’ Celestia said as she reached out and pulls Sunset to her and held her against her.

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Author's Note

1 - I’m going with the title of princess is used until said princess gives birth to a child and they become a queen instead.