The big day was upon them: Queen Twilight had scheduled a celebration in honor of herself, and it had gone splendidly. There were only a few difficulties, usually involving the families or friends of some of the soldiers that she ended on her first day as Queen. She was merciful with them though, and didn't make as much of a mess, settling for neck snaps instead of completely blasting their guts all over the place. It was so much easier to clean up.

She had the foresight to not make the crowning itself a large affair in the main square where there would more likely be additional problems. Instead she scheduled a private ceremony with some of the elites of the city and a few additional friends, with tables and a small band in the throne room. She invited her close friends from Ponyville, and was disappointed when they did not show up. Oh well, maybe she could go visit them at a later time and make sure they are doing well. She was sure they would support her eventually.

The elites showed up at least, all eager to make a good impression for the new ruler. Everyone wanted their influence. Her brother Shining showed up as well, she nodded to him where he sat at one of the tables. Cadence was laying on the floor in front of him, leashed, gagged, and with blinders, staring at the floor. Her horn was stuck into her pussy again, the base hanging out as she clenched to keep it there. It was nice to see that he was still enjoying her.

When Twilight marched out, her outfit was probably not what was expected for the fancy-dress affair, though it was definitely fancy. She wore tight leather mid-piece that hugged her about the chest and shoulders perfectly, only leaving gaps for her wings, with chest high slick leather socks on her front legs. The bottom hugged about her hips, her cutie mark plastered on each flank piece, leaving it open below to allow her already-magiced sheath to swing freely, tip already peeking impatiently. In the rear, it went down to her mid-rear legs, but framed her behind in a heart shape. It pulled her tail upwards, making sure she was rather shamelessly on display at all times, and she didn't hesitate to sway her hips for everyone to see. Finally, as if to dig in how much she was in charge, she wore a necklace from which hung Celestia and Luna's horns, clattering together as she walked.

Perhaps the bigger draw to the eyes however, was Celestia and Luna being led behind her by a chain leash connected to a leather spiked collar. Their heads were hung low, faces burning red with shame and embarrassment. They didn't have the full get up that Twilight had, but they had a bit more to display. Their wings were tied to their back with leather straps, a dozen or more straps holding their wings so tightly that they were turning a bit bluish and keeping them from anything but shallow breaths. On their legs were chest and thigh high socks, striped with the colors of their sister's mane to match them up as a nice little pair. Their tails were also tied up high, forcing them to show off their shapely plots as well. As promised, their piercings had been switched with some nicer jewels, a bar in each adorned with Twilight's cutie mark on either end. The breast and clit piercings were fastened together with a chain, conveniently making it easy to pull at all three by yanking the one chain.

A quiet came over the room when the three marched out, all save for the strings and piano of the band playing. They walked down the long carpet from the entrance to the throne, where Twilight's new ornate crown sat patiently in the seat, adorned with a sun, a moon, and Twilight's mark superimposed over both. Twilight didn't make a big ceremony of putting it on, simply sliding it over her head and turning to sit in the throne, Celestia and Luna now below her.

"Before I consider this coronation official," said Twilight, "I will need my predecessors to make clear for you..." Twilight looked down at her slaves, letting their leashes fall to the floor for the moment, "Luna, on your back. Celestia, atop her bellies together." ... "NOW!"

The two hesitated, but gave in rather quickly. On top of having no horns, Twilight had made them starve for several days before so they'd be far too weak to cause any issues, and so that the delicious smell of food would be torture. Luna weakly pulled over, rolling so that she lay upon her back, balanced on her bound wings and splaying out all four legs as best she could. Celestia stood again and walked over her sister, then gently settled down atop her, bellies together, piercing chains clinking together and pussies framed nicely together by their behinds. If this weren't humiliating enough, Twilight decided to talk while they moved into place.

"You know, Celestia was actually a virgin until I took that from her," said Twilight, "A thousand year old virgin, how pathetic is that?" The crowd murmured in agreement, not daring to do otherwise, "Luna wasn't though, she apparently fucks ponies in their sleep. Some of you have probably boned the moon cunt and not even known it."

Twilight moved up behind the two when they were laying there, mounting up against Celestia and shamelessly pulling herself closer. She chrred as her cock tip brushed Celestia's slit, then slowly pushed inside. The room was so quiet that some could probably hear the wet sound of penetration as her lips were stretched out and cunt invaded. Twilight shoved all the way in, her balls smacking Luna's pussy, then started to thrust steadily. She moved her hooves to massage at Celestia's still stinging flanks, and grinned down at her.

"Say it Celestia, you worthless cum bucket," Twilight jeered down at her, continuing to thrust. She had made the two remember what they should say, and they both knew what would happen if they didn't, "Look at the crowd when you do."

"I..." Celestia grunted as Twilight continued to thrust, eyes streaming with tears of shame as she forced herself to look upwards. "I hereby give up all rights to the throne, and hand my title to Queen Twilight Sparkle. I... I am a worthless cunt who has needed to be saved more often than I have helped. From now on.. I want to be Queen Sparkles rape toy, nothing but a cum depository for her and anypony else she commands."

Twilight pulled from Celestia's pussy slowly, allowing her shaft to drop and push into Luna instead. She began the same steady motion, pushing in and out of Luna's moon pie, groaning happily as she begins, "And you Luna..."

Luna took several long moments before what little was left of her pride allowed her to speak. She looked up at the crowd, head upside down, and spoke, "I also give my rights to the throne to Queen Twilight Sparkle. I am even more of a worthless slut than my sister, as I served no purpose that other ponies can't do better, even my special talent is better done by Queen Sparkle. I am now her cum dumpster for her or anypony else."

"Mmmm, good girls," chuckled Twilight, "Long live the Queen?"

"Long live the Queen!" there were shouts and murmurs around the room followed by a general stomp of applause.

Twilight ignored that for a moment, pulling out of Luna and concentrating on another spell. As she cast, her throbbing erection tore down the middle, forming two shafts, one atop the other, each as thick as the first. It was an excruciating event, but Twilight gritted her teeth and bore it. The pain was worth it.

"Now," said Twilight, "Squirm for me you sluts, and show me some tears. Everyone wants to see you SUFFER."

Twilight pulled her hips back into position, this time pushing one tip to each of their drooling rape holes, thrusting immediately and sinking into the dual love tunnels. Their bodies squirmed back against her, rubbing those still ample asses back against her. Twilight leaned forward, grasping Celestia about the shoulders and pulled her mane with her teeth, then speeding her motions to a hammering that filled the room with the lewd slapping noise of their bodies colliding.

Twilight's horn glowed again, and her cocks grew another few inches in girth near the base, stretching out their labia until they were painfully tight around her, continuing to thrust every bit as hard. She allowed them to lengthen as well, and was soon bashing her tips at the doors to their wombs. Her magic then washed over her two captives as well, causing their cunt sap to increase itself flow, milking her and convulsing like never before. It wasn't a spell to make them pleasured though, it was a fertility spell.

"I'm not just going to cum in you in front of everypony here," said Twilight, "I'm going to knock your pussies up right in front of everypony here. You ready?"

"No no," murmured Celestia, "My vows... I..."

"Just get it over with," said Luna.

Twilight laughed, "It's cute that you still care about your vows, Celeslut." she groaned, "Now make out with each other, Do it!"

Celestia and Luna hesitantly did as she said, though tears still streamed from their eyes as their faces met and to kiss. Pulling themselves close, their front hooves stroked across each others body and their tongues explored each others muzzles. Even as they made out hotly, they were both choking on sobs, their whole bodies glowing red with the shame of their situation.

Soon her cock slammed through into Celestia and Luna's wombs, tearing them open inside and pushing through their cervix like it were a second pussy inside of them. Twilight groaned as she felt her tips bash the back side of their wombs, stretching the flesh, and barely kept herself from going even deeper. When she fired off, she screamed loudly, which echoed through the throne room and great hall beyond. She arched her back, rolled her eyes back, and flooded their cunts with her ultra-fertile sperm.

She continued to thrust, her climax carried over for several minutes, spraying down their insides with wave after wave of her seed. She pumped every nook and cranny of their pussies full until they were stretched out like balloons, then excess washed out, spraying against Twilight's belly and drooling down her thighs and balls onto the floor.

After having fueled up their foal factories, Twilight pulled herself back out of them to allow her cocks to return to normal size before melding back into one. She cast another spell, this time repairing their insides and sealing off their womb. The spell would allow her to continue to be as rough as she wished to them without fear of harming her offspring.

"I'm done," Twilight huffed, "Apart." she motioned to the two still on the floor.

Celestia and Luna separated, but neither stood. Instead they simply lay with all four legs folded up beneath them, resting their bellies on the floor as they panted and tried to dry their tears.

"Good," said Twilight, "Now anypony else that wants to have them, go for it. I even have a box of gender swap potions here by the throne if any of you mares want to get in on the action."

The crowd was initially stunned at the offer, all except for Shining Armor who immediately left Cadence on the floor, leashed to the table, and trotted over towards Celestia. After the crowd watched her brother mount up on Celestia and push himself shamelessly inside, there were a few others that rose from their seats and moved to either grab a hole or get in line.

The rape party continued for the rest of the night, and every one of the guests, plus the royal guard that were on duty, participated. Twilight soaked the room within her love magic, urging them on and giving them energy to keep going more than once. Twilight had them several more times as well, and even Cadence got some play while Celestia and Luna were busy with cocks of their own. By the end of the night, each had been raped dozens of times. They were sticky and sore in every hole they possessed. Their complete and utter humiliation was more than complete, even if they were to be saved that very moment, they could never be anything but what they were.

At the end of the night, as ponies began to leave, Twilight sat in her throne, looking down at the three collapsed forms of Celestia, Luna, and Cadence. Shining quite literally dragged Cadence off by her leash, leaving a trail of cum swirled with streaks of blood behind her across the floor until she finally rose to her feet at the exit. Twilight was left alone with her toys and her guards. She looked down at her toys, raped until they bled, then raped some more. Another hour and they might have been literally fucked to death. Maybe she should feed them.

"This really has worked out better than I expected, don't you think?" said Twilight, "It looks like you have many centuries of my rule to look forward to, and I'm going to make sure you spend the next thousand years being raped and tormented. I have sooo many plans." She chuckled, "But for now... I'll call the royal doctor over."