FSE

Furry search engine

formerly SoFurry search engine

Perfecting the Princes

Part 4

For Engy

By Draconicon

Celestia knew something was wrong as soon as her sister didn't show up for their usual meeting. It was tradition ever since she'd come back from the moon, ever since Luna had stopped being Nightmare Moon. They would give each other a quick hug, share what happened, any immediate dangers or concerns that the other needed to know about, and then they'd swap shifts. That was how it had been for the last decade or so.

That, however, hadn't happened. The moon had gone down, and the sun was waiting to go up. She had been waiting for nearly five minutes for her sister to show up, but there wasn't so much as a tap to the door.

Something had gone wrong.

She paced the room, her white dress flaring out behind her, her gold belt barely keeping it restrained as her flaring, flicking tail and hair kept falling down over the back of her dress, or trying to raise the back up a little bit. She had to fight it, to force it down so that she could keep her focus on what she was going to do next.

Someone must have caught her...or she's being tempted again...or...

The Princess of the Sun had ruled Equestria solo for many years while her sister had been banished to the moon, and she knew that she could do it again if she had to. There were other princesses now, others that could pick up the slack if there was a need. But she really, really didn't want there to be a need, particularly after she had finally gotten her sister back.

She was pacing up and down her bedroom, her shoes slowly floating out of her closet to meet her feet. Sandals, nothing more, but it would work to keep her from injuring herself as she floated through the halls or walked down the steps.

One more minute. That's all I can spare. One more -

Click.

She turned to the door, hoping against hope that it would be Luna opening it, her sister stepping through with an explanation for her tardiness. She saw a hint of a wing, but it was the wrong color.

It was purple, not blue. It was Twilight. She sighed, covering her eyes.

"Twilight, if you're here for another lesson, this isn't the time."

"Oh, but it's the perfect time, Celestia."

The white alicorn blinked behind her hand. That voice was Twilight's, alright, but it wasn't her at the same time. Something was off about it, something that made it a bit deeper than it should be, a bit off compared to what she was used to. Celestia pulled her hand down -

"Oh, god!"

And almost fell over, stumbling back towards her bed. Where her student should have been standing was a stallion, a purple-furred stallion with large wings and larger shaft. Her eyes went down, then back up, then down again, unable to look away from the strangely eye-catching...

It was magic, she realized, and she summoned her own, flaring out her wings as the light of day surrounded her, making her dress glimmer with energy.

"What are you, and what have you done to my student?"

"Oh, it's still me, Celestia. I'm just...different now."

"Different? What creature has corrupted you?"

"This isn't corruption. This is...this is enlightenment. Honesty. Wonder. And most important of all...Pleasure."

A sudden burst of magical energy filled the room, and the wave of purple light almost extinguished her own daylight energy. She was rocked backwards by it, stumbling and having to grab the foot of her bed to keep from falling over. The sheer power of that magical force was so strong, so incredibly powerful, that she had almost completely lost her shield in that moment. She gritted her teeth, trying to pull herself upright -

Then Twilight was there, inside of her burning daylight aura. The purple stallion grinned, grabbing her by the shoulders.

"You'll learn, Princess of the Sun."

"Learn what, my student?"

She had hoped to get a little leverage with the venom in her voice, but if it had been heard, Twilight didn't show it. Instead, the stallion pushed her back again, still smiling, reaching down for his cock.

"I'm going to teach you how it feels to be in the grip of pleasure...how it feels to give in to your fantasies...and how it feels to just live in the moment...in the moment of Pleasure."

"Mmmph...what happened to you...how did this - ah!"

Twilight surprised her with a sudden kick, something that pulled her leg out from under her and sent her falling onto her back. Her student grabbed her legs, holding her by the ankles, keeping her from being able to get back to her feet. For all that Celestia had great magical power, there was something about the purple light that was pushing her back, keeping her from summoning her greatest spells.

It didn't help that her dress had fallen down, and that Twilight's new, hardening cock had flopped over her panties, dripping on them, covering them with pre-cum and making her shiver from the way that it was already affecting her. There was a heat to it, a warmth that was different from just getting a bit wet down there, and it...it was soaking through...

She kicked gently, trying to push her student away, but Twilight just grabbed her sandal and pulled it off, throwing it over her shoulder and smiling down at her.

"Heh, if you want your feet paid attention to, don't worry. I'm going to give you everything that you could ever want."

"Whatever experiment you're trying to run, this is wrong. Let me go!"

"Oh, I'll let you go...soon."

Twilight's horn suddenly burst into purple light, and the same shade of it burst into being just below Celestia's dress. It must have been covering Twilight's cock, forcing it to -

Squirt, squirt, squirt. The sudden heat of seed splashing along her nethers made Celestia's eyes go wide, and she flung her power against Twilight with all the force that she could muster. The bright daylight finally shoved her student back, but it was too late.

Even as Celestia got back to her - now bare - feet, she could feel the heat between her legs, the warmth of that seed soaking through her panties. She had to lean against the post that marked one corner of her bed, groaning as it soaked into her like some sort of poison. Her breath came hot and fast, and her eyes were wide and wild. Her cheeks burned, and her pussy...her pussy felt like it was...

"Ah...ah...nnnngh!"

Celestia hunched forward, squirting hard as she felt an orgasm overcome her, squirting into her panties so hard that she soaked through them instantly. Her legs shook, her pleasure rising again -

"NNNGH!"

And she came again, stumbling down. It was her student's cum, she realized. It was that seed that was soaking through her panties. It was driving her up the wall, making it harder and harder for her to think.

Desperately, Celestia tried to banish her undergarments with a spell, but she was so frantic, so pushed for time and thought, that she managed to strip herself completely.

Her eyes went wide as she realized that she was standing naked in front of her gender-swapped student, and she blushed worse as she realized that her pussy was still burning, still hot and horny and sensitive, even if she didn't feel another orgasm coming. She covered her sex with one hand, her breasts with the other, trying and failing to summon the proper royal severity for the moment.

"What have you done? What did you do?"

"I am no longer the Princess of Friendship. I am, instead, the Prince of Pleasure," Twilight said with a small smirk. "My spells call your pleasure...and it wants to cum, just like you do."

Celestia groaned, still feeling her arousal deep down, still feeling the urge to cum again and again just like she had felt a few moments ago. It was tugging on her, begging her hands to go between her legs and start rubbing her clit, rubbing her pussy, fingering herself, shoving something up her ass -

Her mind washed out with fantasies, seeing herself tied up, seeing herself tying up others. She could see a hundred different ways to get off in her head, and it wasn't just lust, wasn't just the fact that she was horny. This was a spell that was demanding that she cum, that she find any way to get off that she possibly could. She was...she was...

She imagined herself impaled anally by a dragon - a yellow one that she swore that she had never seen before - and her hips thrust forward, a sudden orgasm rocking her to the core. She went up on tiptoes as her pussy clenched on nothing, her eyes closing tight as she fell over backwards.

Again, Twilight was there, rushing for her, standing over her with that cock sliding against her belly. Celestia weakly tried to stop her, but her student was already there, already holding her arms over her head, already pinning her in place.

"Nnngh..."

"Don't worry. I'm going to give you the body that you need to cum your brains out over and over again. You'll never miss this one, I promise."

"But...but I need...I am the princess..."

"You'll be something better at the end of this. I promise."

She didn't know if that was true, but she knew that she didn't have the leverage to fight back. It got worse as Twilight managed to get more pleasure spells past the princess's shield, managing to get a ring around her horn and stop her spells completely. She flopped back, panting softly, her breasts almost falling over her face.

"Heh, these are going to get on your nerves, I think," Twilight said, and the stallion slapped them.

The sudden impact left the princess gasping, her eyes going wide as she felt the impact run through her, ripples of pleasure following the rough treatment. Her eyes widened further as she watched Twilight grab them, pinching them, forcing more pleasure through her.

She yelped, gasping, arching her back as she was attacked...as she was...beaten. Overpowered.

Pleasure coursed through her, another blast, another wave, another pulse of Twilight's magic that was bringing her fantasies forward, reminding her of how good it felt to be overpowered, how she had never lost in the past save to one person, and how good it had felt to be humiliated like that. She moaned, her pussy clenching again, her asshole squeezing down on nothing.

"Ah...ah..."

"Hehehehehe, I knew it. I knew that I could find things that would get you off. But seriously, these are just...huge."

Another smack, another humiliating moment as she felt her breasts being mocked. They were large, they were huge, they had always been a pain, but they'd been part of who she was. The big-boobed princess, the bigger sister, the one that had the plentiful valleys...

She shivered as she felt her nipples get twisted again, only to feel the tingles of magic running through her once more. This was a different spell, though, a spell that was hitting her with...with the pleasure of not being herself, of being something...

Something different.

"Let's shrink these out of the way...and then we can get to the fun part, huh?"

Celestia gasped as she felt her breasts sucking in, tilting her head back from her student to see the big boobs slowly pulling into her chest. Each little suction hit her with both a physical and psychological hit of pleasure. The physical was like something sucking gently on her nipples, but psychologically...

Conquered, changed, improved...made better...for someone else...

The thought of someone else molding her body, of being what someone else wanted rather than being what she had always been, slammed into her with all the force of a falling avalanche. Every little twitch, every little ripple and shrinkage that she saw only increased her arousal, making her stare at herself more, making her whimper and blush and gasp as her breasts dropped one size after another.

Soon, they were small enough that they could no longer fall over her face, and she could see her student's cock resting between them, could see the flared head that was pointing right at her face. Her willpower to resist was rapidly fading, the urgency to stop this slipping from her mind. In its place rose something that was as insidious as it was powerful.

The urge for pleasure.

The urge to get off.

The urge to cum.

"T-Twilight..."

"Don't worry, Celestia. This is all part of the process."

Another wave, another fantasy, another near-orgasm. The idea of being walked around the world, of being shown off, of being made to thrust her tiny chest forward, to wag her butt around, to let everyone see what had happened to the great and powerful queen of the country in all but name. She had been the greatest power that the ponies had ever seen, had ever had over them, and she had been conquered by her own student.

It was like every dark fantasy that she had ever fingered herself to was coming to light, and it was her student that was dragging it out of her.

Shrink, shrink, shrink, she thought, wishing she had the strength to reach down between her legs and rub herself, to get herself off. She wanted to finger herself, to tease her pussy and her clit, to feel something in her as her breasts shrank. Yes, that's it...get me...get me to be...like you want me to be...

Little by little the great globes shrank until they were the size of little nubs, and then, then nothing. She panted as she stared at her chest, still hardly believing that they had been so massive only moments ago. White fur was all that was left with little pink nipples showing through.

Twilight leaned over her, the stallion slapping that fat cock against her belly, oozing more pre-cum over her stomach and chest. Everywhere it touched, she felt more sensitive, and she whimpered as some of it rubbed over her nipples, making them more sensitive again, keeping them a pleasure point.

"Heh, how's it going to feel to go topless, Celestia? To let everyone see what happened to you?"

"Mmmph...It's...it's going to be...humiliating."

"And arousing."

"Oh, yes..."

"And you want to take it further, don't you? To make sure everyone knows that this is how you are, and this is how it's going to stay...forever."

Forever. A permanent transformation. Another tingle of pleasure, another throbbing burst of need between her legs. She moaned, arching her back, her eyes rolling back in their sockets.

"A-amazon?"

"Amazon," Twilight said. "A big, hot amazon...until I take away your pussy and give you a cock, that is."

"A - mmph!"

A cock. A cock to be a king rather than a princess, a cock to allow her to be a him, to have the different stallions that thought of her as just a breeding girl to see her as something different, something potent and powerful rather than something weak and waiting for use. Yes. Yes, that would be fucking -

Oh, god, she was already thinking of it, already going towards the edge, already -

"NNNNNNGH!"

She arched her back as she came again, her pussy clenching...but not as tightly as before. Her clit felt like the main source of pleasure now, and she couldn't think straight as she swore that she felt it twitching, moving, shifting.

She panted for breath, covered in sweat as Twilight smiled at her.

"Heh, don't worry...I'm going to take care of everything..."

And so he was. Twilight stood up, stroking his cock and making sure to aim the pre-cum that kept spurting from his tip at the right spots to keep the changes and sensitivity going. He had already started the pussy shift, making sure that his teacher's sex was closing. That had started while Celestia was in the middle of losing her boobs, a better look for her anyway. It was good to get it done before the Princess of the Sun could miss it, and this...this was getting pretty damn hot.

"Just relax...relax...and enjoy the ride...enjoy the Pleasure."

There was a big difference between him and Cadence with the spells that they had. While Cadence could read the lusts and needs of someone else, could make them horny, could make it so that they couldn't think very clearly, Twilight fed directly on their pleasure. He could make them cum, make them want things that Cadence had to hint at and push. Twilight caused pleasure, made them chase it. Cadence encouraged the need for pleasure, making it more prominent. They were two sides of the same coin, but Twilight was far stronger.

He blasted Celestia with another orgasm, leaving the former princess writhing on her bed. Well, his bed, now. That clit was slowly starting to rise, turning from that tiny little nub into the beginning of a cock. It was more human than the others that he had been working on before, but that wasn't a bad thing. He could decide whether he wanted it to be rather thick and heavy like a horse one, or more civilized like a smooth one later.

For now, what mattered was size. Celestia had always been about size, and as the last of the Princess's pussy faded away, it was time to give him a cock that would be just as grand, just as eye-catching as those breasts had been.

Twilight tied the transformation magic to the orgasms that Celestia was giving himself, making each climax change him that much more. Already, another one surged through the prince, making that clit rise a bit further, growing out a bit more, but more than that, the beginnings of thick muscle were starting to show.

Twilight had practiced what he wanted on Cadence, but he hadn't quite taken it far enough. He wanted someone that would follow what he wanted, what he desired, and he wanted to see that continue. He wanted to see someone that could bottom as well as Cadence could, but could also take the top when Twilight felt the mood for something in his ass.

After all, the dragon friend that he'd made wouldn't always be around. He'd need more than one cock to keep him satisfied.

"That's it. How's it feel to lose your femininity? How does it feel to start getting a cock?!"

There was a hard twitch at that, the former princess moaning at the top of his lungs as he came again, obviously thrusting his hips like mad. There was no sudden ejaculation yet, no spurting of seed, but that would come as time passed, as more of the transformation rolled over the former woman.

Another ripple, another burst of muscle. There was more and more masculinity erupting through Celestia's body, from the gradual widening of the shoulders to the thicker neck to the wide thighs, all the way down to her feet. They were not just getting longer, but thicker, and there was a sheen of sweat to them that sent a different wave of musk through the air.

Bit by bit, the different styles of manhood were taking hold, and there was less and less of the woman that had been there, that had taught Twilight the magic that he knew. Soon, it would be a prince in fact rather than just by default.

Twilight sparked yet another orgasm, fondling his balls as he watched the transformation progress, groaning under his breath as the monarch's cock continued to swell and rise. With each successive orgasm, it gained more inches, thrusting up and wobbling as Celestia thrust into his pleasure, making it fall and then rise, wobble and shake, thrust and twitch. There was a pulse through it, an eager bouncing that showed how much the former queen wanted to cum.

But not yet. Twilight had kept the tip from opening up, was saving that for when the new prince had a pair of balls that were equal to his own. He wanted to see that fountain, wanted it to be a mind-blowing orgasm that would shatter the feminine side of Celestia forever, to convince him to join the princes and spread this across the country.

The dragon would probably like that, he thought. A bunch of hot, ball-loving, big-dicked, musky stallions that were all eager to play with one another. That would probably get Engy all sorts of happy.

Stroke, fondle, stroke, fondle. Even as he worked his magic to transform the prince into a good stud, he was still enjoying himself. One stroke, two, three, forcing himself right to the edge of an orgasm before pulling back to savor it for later. He groaned as he felt his massive sac rising up, feeling the weight of his balls, and then he held off, letting his balls sag back down, feeling even heavier for the work-out.

Yes, big balls were the best. So obvious, so musky, so proud of what he was. They were the sign that he was a real man, a powerful man, a good man. He was an honest man, balls-out, heavy and firm and full and -

Twilight had to pull his hand from his cock, knowing that he had been about to blow his load, but he let the pre-cum fall on Celestia's cock, over the taint where the pussy had been, soaking both with the sensitizing fluids and spells. The prince arched his back again, muscles popping through his arms and abs, along his legs and his ass, making him bigger, stronger, tougher, taller.

Yes, taller, the great white horse getting big enough to look down on Twilight again, just as had happened when they were just working together. Celestia was going to be the biggest stallion in all of Equestria, tall and big-dicked and just...just amazing to look at...

And at the same time, Prince Celestia was going to be his bitch.

Finally, the start of those balls were visible. He had been pushing the spells slowly, making sure that cock grew first, making sure that it was well and truly in place before going for the balls. Celestia had lost all control, jacking his cock good and hard, fondling it from tip to base and back again, each time dragging his hands faster and faster, along more and more cock.

Yes, it was big, but those balls were going to be bigger. The great monarch needed something to match their position...at least, for now.

Twilight's horn glowed, forcing that cock to keep rising. It was already at thirteen inches, but he made it grow another inch, then another two. This cock was going to be as good as a feral stallion, in his mind, as big and fat and eager as an animal's, too powerful and insistent to ignore. No matter the need for decorum, he wanted Prince Celestia to be unable to resist their cock, to heed its call, to give in to his honest urges from here on out.

And those balls...those balls would help with that.

The purple stallion moaned to himself as he watched them emerge, wishing he could go back in time to feel and see the same thing happen to him back when he'd been in the basement. He didn't know if he could undo it to go over it again, but seeing these white orbs slowly forming, he rather wanted to.

They were already full, Celestia's thighs spreading from just how big the initial bulges were, but Twilight knew that they were only going to get bigger. He had deliberately done this to make sure that they were as big as his, if not bigger, and his balls were bigger than bowling balls between his legs.

He reached up, grabbing the base of his prince's cock, jerking it even faster. He spat on his hand, getting it nice and wet, and then slathered it in his sensitizing pre-cum. Celestia almost screamed in bliss as his hand flew up and down that cock.

"Just let them out. Cum again, and again, and again."

"Nnngh...I can't...I can't...I'm gonna lose...lose my mind..."

"No you won't. You'll just learn new things."

Twilight smiled, feeling those balls dropping more and more, filling up with seed that was going to go flying through the room in short order. He knew that it was going to be a mess, didn't care. He wanted to see it happen, wanted the fountain to start.

He grabbed them, groped them, and the Prince of the Sun screamed in pleasure, arching his back, thrusting his still-growing cock into the Prince of Pleasure's palm. One thrust, two, three -

"AH!"

Another scream, another transformation of pleasure, the cock growing out at the tip, gaining the equine flare, while the balls pushed out and drooped, falling down over Celestia's asshole. The feeling of them rolling down, the sense of having his own cock-head buried beneath the musky flesh, was all the better for it.

"That's it...just let it out...let it...grow..."

"Nnngh...I...ah...ah...ah..."

"Hump my hand...and cum those balls out."

There was so much sensitizing cum on Celestia's cock now that there was no way that an orgasm wasn't going to happen. Even if his old teacher managed to teleport away, just the act of moving would get him off, now. One more orgasm, that was all he needed. One more orgasm, and he would be a full, big-balled, honest stallion that would never be able to hide his fantasies ever again.

He would never want to, either.

Stroke, hump, stroke, hump, stroke -

And then Celestia went over the edge.

The explosion that followed released all the cum for that orgasm, plus everything that had been pent-up ever since the closing of the prince's pussy. It was a massive fountain, positively explosive in nature, and the white flood that hit the ceiling started raining back down over the two of them, soaking them from head to toe. Twilight savored it, sucking in the scent, breathing it down as it made his balls that much bigger, that much more excited.

Celestia, on the other hand, panted hard, staring up through the rain even as it soaked the both of them in the musky goo that had been just waiting to come out. The stallion sat up, his balls keeping his thighs well apart from each other, and the big heavy things were sweating like mad, soaking the sheets with that musky stuff even as the cum soaked the rest. The white stallion groaned, rubbing them.

"How is there anything left in there?"

"Search me."

"You made them, Twilight."

"Hmmm, not really," Twilight said with a chuckle. "I just told your body to do it; your magic did all the work."

"...No wonder they're so full."

"No wonder you're so horny."

"Hmmph. My student, you have a lot to learn when it comes to my fantasies."

"I'm sure that between Cadence and I, we can get them all out in the open."

"You already turned her?"

"Well, him, now. There's been a lot of changes. Luna's probably been changed too, by this point."

"You've been busy."

Twilight blushed slightly at that. Even with everything that had happened, he was still that eager student at heart, and the slight compliment in the Prince of the Sun's tone meant a lot to him. He had, after all, worked under the white stallion for a great many years before becoming royal in his own right.

They sat together, balls to balls, for more than a few minutes. The seed around them should have started hardening, but the magic of pleasure kept it from doing that just yet. They just leaned back, soaked and sweaty, and both of them throbbed, hard.

He wasn't sure just what was going through Celestia's head, but he knew what was going through his own mind. He was thinking of Engy, and what the dragon would think about all the things that he had done. Twilight wanted to take Celestia back to him and show off what had happened to the most powerful people in all of Equestria, what he had done to show off just how well he had learned the lesson of cock and balls and pleasure. More than anything, he wanted to show off how good he had done, and...

And maybe get that dragon dick up his ass again. Even as hot as the horse-cocks that he had helped create were, nothing quite compared to the sight of that big, fat, dragon dick. He wanted to feel it up his ass again, feel it crushing his prostate, feel his asshole stretching around it and feel it milking his balls.

As he reached for his orbs, however, Celestia grabbed him by the wrist. He blinked, looking back at the white-furred stallion.

"What?"

"You're not emptying those just yet."

"I don't think they can be emptied, actually; I think they'd need magic to keep them from getting even bigger."

"Well, still not chancing it. Before we go out on a walk -"

"You want to show off that bad?" Twilight asked.

"You have no idea."

"Heh, Mr. Big Balls wants to prove that he's the biggest one around?"

"Knowing you, I definitely am, but...it doesn't hurt to make comparisons."

Twilight smiled, only to get a finger to the nose. He stared down at it as it squished his nose in slightly.

"But don't change the subject. Before we do that, I still need something else. Something...firm. Hard. And hot."

"Let me guess. You need it in your ass?"

Celestia smiled, slowly rolling over to show off his new rump. Big, thick, and filled with muscle, it parted on its own to show the pucker between, and that hole was twitching as bad as a mare's pussy in heat.

"You're going to fuck this until I say you can stop," Celestia said.

"Oh, you think that you're going to be in charge?"

"Heh, you might have changed me, Twilight, but that doesn't mean that you're stronger than me just yet. I might still have a few surprises left."

"Well, let's see who can hold out longer."

Twilight got on the bed, getting behind his teacher. That ass was big, alright, and so was the stallion it was attached to. Celestia had grown massive, nearly two feet taller than he was, and that height was covered in muscle, musk, and all sorts of sensitive skin. He planned on exploring every inch of it over the course of the day, but for now?

For now, he was going to fuck the 'king.'

The End