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Perfecting the Princes

Part 1

For Engy

By Draconicon

The little town of Ponyville had long since lost most of its fascination for Twilight Sparkle. Ever since becoming the Princess of Friendship, she had been rather...at a loss with her studies. Oh, sure, there were plenty of old records to go through, and more different bits of history to examine than one could shake a stick at - not that she did much stick-shaking - but she didn't have anything to really grab her and keep her focused anymore. There was nothing that interesting around, particularly since Spike went off to explore, to find out more about himself.

And now...

Well, she was bored, and a bored unicorn was good for no-one.

The purple mare sat in the middle of her little tree-house, staring at the walls of books, wondering what, if anything, there was left to learn about the different things in the past, the different teachers that were long-since dead. Celestia and Luna could, perhaps, still teach her something, but they were always busy, far too busy to help with a student that was supposed to keep herself busy.

No, she had to entertain herself.

She got to her feet, pulling on a dressing gown of pink satin that she had gotten from Pinkie Pie a while back. It still had a noisemaker here and there that she hadn't managed to track down and remove yet, but it was among her most comfortable garments. She wanted to make sure that she stayed comfortable while she was working today, knowing that discomfort was the fastest way to get distracted.

Unable to figure out a project, however, she walked over to a mirror. At least she could study herself a bit, if only as a starting point.

She walked over to the mirror that Rarity had installed by her front door, the fashion mare having been rather concerned about her clothing choices when they first met. It had been meant as a way for her to have a quick second check on her fashion for the day before leaving the house, but it had never been good for correcting things. It had been mostly relegated into a study mirror, allowing her to work on transforming herself and seeing the effects more suitably than just looking herself up and down would have done.

Over the years, she had developed into quite the mare, she had to admit. Magic had been helpful in giving her the choice of what she wanted to look like, admittedly, but her base form - which was what she had right then - was better than most ponies might have had. She had a pair of breasts that were just big enough to overflow her hands during...solo time...and she had hips that would not stop swaying. She swore that there was some sort of weight curse to her ass, something that a jealous friend had inflicted her with, because that had a problem ever shrinking down, and she swore that anything she ate went right to her ass.

She shook her head, putting that out of her mind as she opened her robe for a moment. Her body was fit...well, somewhat fit. She had a slight bit of chub from staying in the library all day, and she knew that was something that she could only blame herself for. She'd have to zap some of that off later if she wanted to fit into her clothes properly, but it wasn't too bad just yet.

Spreading her legs, she ran her fingers around the edge of her sex, feeling the way that it was already a bit puffy. Her heat was going to be coming in a few more days, probably next week from the feeling of it, and she'd need to go into lockdown to avoid getting any of the stallions any more eager than they already were.

And they were eager. She couldn't go out to the fields anymore without getting at least one of them following her this way and that, some of them trying to pin her against the fence to engage in some 'study sessions' with each other's bodies. She had turned them all down, of course, but that didn't make them any less determined.

She ran her fingers around the edge of her pussy a few times, feeling just how warm it was. Not wet yet, thankfully, but warm, for sure.

One of these days, I'm going to have to study this properly. Get really in-depth, find out what makes my motor run...

If it wasn't for the fact that it was a completely self-indulgent experiment, she might have just done that for the day. But no, she was a good student, a good magician, and she was going to do something practical -

A sudden burst of noise from outside caught her attention, and she blinked as she poked her head around the side of her doorframe. Barely remembering to pull her robe up tight again, she poked her head outside, watching as a stampede of other ponies were running down the street.

"What the hay?"

Twilight grabbed one of the mares running by, a green-and-cream-colored Earth pony.

"What the heck is going on?"

"Someone saw a dragon on the edge of town."

"So?"

"So, it's not a baby one! We gotta get out of here!"

Twilight blinked at the information, tapping her chin slowly.

Not a baby dragon...

That was something new, at the very least. Spike had grown up a little bit during her time with him, but he had never seemed to get older than childhood. There were rumors of dragons out there in the great wide world, but she had never seen another one. The idea that there might be an adult one here...

Something stirred in the back of her mind, curiosity and something more. The second thing was dismissed, and the first was embraced. It was time for her to get to work and find out just what was going on with the new arrival to the town.

Gathering her magic, the purple alicorn shifted her dressing gown for something a bit more suitable for out of the house wear. It changed instantly, poofing out in a burst of light for a dress that ran from her shoulders all the way down to her ankles. The soft blue silk comforted her, giving her a soft grip around her hips and rump that made her feel a bit like she was being hugged, and the pressure extended all the way up to just under her breasts.

Another thought brought her a pair of sandals, just thick enough to make walking easier when she had to do it. She might have been able to fly, but she had been a unicorn long enough that she was well-used to walking, and still preferred it.

With that done, she pulled on her magic again, teleporting.

She reappeared at the town square, somewhere closer to where the dragon must have been. She could tell that the crowd had already abandoned the town, too scared to see something different, too terrified of the idea of an adult dragon. She couldn't understand why, of course. There were many different things in the world, and running from them would never make it easier to deal with them.

Twilight looked around, seeing the emptiness of the town as a chance to have a little fun. With everyone around during the day and night, she had never been able to keep her thoughts collected, had never been able to think clearly in the noise that perpetually surrounded her. Now, however, she only had the sound of her mind and her footsteps, and the occasional scream in the distance.

This is going to be fun...

Smiling wide, the alicorn made her way down the street, humming to herself and clicking her sandals together from time to time. Her wings fanned out, catching the breeze, and she used that to help her track where this stranger must have been. He wouldn't smell of pony, and that meant -

The sudden buffet of wind caught her from the left, and she spun around as it caught her wings and pushed her. Yelping in surprise, the princess barely caught herself before she could fall over, her head whipping around for the source of the sudden gust.

She found it, and her eyes locked on the stranger, and she slowly smiled.

He was a dragon, and there was no doubt about that. Bright yellow scales covered his arms and legs, while his belly was a slightly duller shade. He didn't have the shame or the modesty of the stallions that walked through the town, she immediately noticed, and her cheeks burned slightly at the sight of something rather...large...down there even as the back of her mind wondered how there was another species that could be that big, that wondered how that biology developed and worked in a different species.

Her curiosity won out over her shame as she got back to her feet, and Twilight smiled wide as she bobbed her head in greetings.

"Hi! I mean, um, hello there. I just, uh, I was wanting to see what was causing all the commotion, and...wow. Just. Uh...Wow."

Despite herself, she couldn't take her eyes off of him. There was something strange about the creature, something that pulled her to keep staring at him regardless of how bad manners it might be. She couldn't stop looking down, either, her eyes going right for his cock. God, no, his penis. It was a penis, and the word 'cock' should only be used if she was thinking of...

Well, rather obvious things. Things that were dancing through her brain as other, naughtier experiments, experiments that would leave her stuffed and stretched and feeling like one of the breeding girls that were down at the farm and -

"Ugh. Sorry. One second."

Twilight thumped her forehead with the heel of her palm, and it seemed to get the worst of the temptations out. The purple alicorn groaned under her breath, taking a couple of deep breaths until she felt more settled. She kept her eyes closed, forcing herself not to imagine that giant...penis...that the dragon had, and opened her eyes again.

He was closer. Much closer. In fact, he was right on the verge of bumping her nose with his. Twilight yelped, falling head over heels, and this time there was no catching herself in the process.

"GAH!"

She hit the ground, falling flat on her butt after rolling over a few times. Lost a sandal in the process, too. Groaning, she rubbed her forehead, blushing hard as she realized just how ridiculous that must have looked.

"Sorry. I'm not used to talking to anyone that's not a pony. And you're so...so..."

"Naked?" the dragon asked.

"Oh, god, thanks for saying it. I mean. It's not like it's a bad thing. I know that it's probably your culture, the way that you do it where you come from, but here, it's hard to see that and not immediately start thinking of a penis and getting it inside of me and oh god I said that out loud."

She rubbed her face as if she was trying to scrub the embarrassment right off, groaning under her breath again. God, she had to just go on and say something like that in front of a newcomer, someone that didn't even know anything about the other ponies just yet. Some sort of ambassador and scientist she was turning out to be.

Just get up and do your job. You want to learn about dragons? This is the best time.

Twilight forced herself to clear her throat, getting to her feet with a flicker of her magic rather than trying to stumble upright in her dress. She put on her best princess look, the most imperious face that she could manage, and stared down...well, up her muzzle at the dragon. He was taller than her, after all.

"You will come with me and submit yourself to several royal experiments. We must understand what you are like."

"Experiments, huh?" the dragon asked with a smile. "Are we talking potions, or magical?"

"Oh, you know about potions?" she asked, her excitement breaking through again before she was able to grab it and pull it back again. "Uh, I mean...There will be some of either. I will make sure that you are safe before allowing you into Ponyville properly."

"Well, I don't have any problem with that. I'm happy to help." The dragon smiled, offering a hand...a metallic one that she had missed due to staring at his cock - PENIS! - for so long. "My name is Engy."

"Where'd the metal arm come from?" she asked. "Oh, um, sorry. That was...that's unnecessary right now. I, um." She groaned, shaking her head. "Stop it." She grabbed his hand, slightly more firmly than she had to, and gave it a good squeeze and shake. "My name is Twilight. Twilight Sparkle. Princess Twilight Sparkle."

"Well, Twilight, good to meet you. So...shall we get on with the experiments?"

"Uh, yes, um...one second. I think we'll need a different lab than my usual one."

#

They flickered into an underground basement, and immediately Twilight wondered if it was the best idea. It was more of a, um, BDSM basement than anything else, a place that she borrowed from a kinkier pony when she had to deal with a more dangerous subject. She didn't want to think that this Engy was going to be dangerous, but then again, it was always smart for a pony to be careful when they were dealing with something new.

She had already teleported him to the bondage table, and she had made sure that he was well and truly restrained before she had appeared herself. Leather straps held the dragon down at the wrist and ankles, at the waist and chest, and he...

His eyes were wide, and she realized that there was some sort of bad feeling there. The alicorn yelped, rushing over to him, laying her hands on his chest.

"Are you okay? Do you have a leather allergy? Should I have - oh god, did I mess this up already?"

"No, no, just...just not used to being tied down..." Engy took a few deep breaths, the discomfort slowly fading as he whispered something to himself. "I'll be okay...I'll be alright. Just...just warn me, huh? Next time?"

"Yeah...yeah, I can...I'm sorry." She rubbed the back of her head. "New to the princess stuff. I'm a very good scientist, but..."

Her voice trailed off, her eyes growing a bit glazed as something else caught her attention. The wind had been strong enough out in the main village for her to miss something, but this time, it grabbed her and pulled her along.

Twilight leaned her head back, her horn glowing as she sniffed the air. There was something hot...hot and almost spicy, thick and heavy, and with a musk that put the stallions in the field to shame. No matter how hot and sweaty they got with their work day, they had always smelled a bit foul to her, like they needed a bath more than anything, but this...

Without thinking, she slowly started lowering her head, sniffing away at the thick smell that was growing ever stronger in the small chamber. She couldn't help herself, letting it pull her along.

Engy wasn't saying anything, either, something that made her feel a bit better about indulging herself with this scent curiosity that was burning through her. She didn't know what had caused it, but it was definitely something that she needed to look into. What if it was something that could affect other ponies? What if it was something that the dragon was sneaking in and...and...

Her pussy was getting wet under her dress, the scientific part of her brain noticed. It was a very quiet thing to notice, but it didn't care. It was a bit of data, and it was filed into the experiment log that she was keeping in her head, even as she leaned forward to find out what the source of the smell was...

Coming...

From...

Twilight opened her eyes again as she realized that she was shoving her nose right into the dragon's crotch, her nostrils pressed firmly against his orbs, and her eyes widening slowly. She looked up from his sac to his cock - PENIS! - and then past that to his face. For his part, he didn't look embarrassed. If anything, he looked kinda...turned on.

She blushed, trying to pull back, but there was something about...about it that burned into her brain...something that made her...hot...

She groaned as she pressed her thighs together, feeling her pussy puffing up, getting hotter and wetter, her need rising more than ever. There had to be something going on. Pheromones, or...or something like that.

Groaning, the mare reached for his cock, gripping it at the base. It was already rising, stiffening. Yes. Cock. Cock, not penis. This was something to be studied, something to be studied...in depth...

Still panting softly, she moved her muzzle from his balls to his shaft, and she dragged her nose along the side. The hot, thick smell was getting stronger and stronger, and he groaned as she pumped her fist up and down his shaft.

"Mmmph...you're...you're really liking that, huh?"

"Can't...can't help..."

She groaned, feeling like she really couldn't help it, as if her mind had become a captive to his cock. It was like that smell had completely captured her mind, making it impossible for her to think straight, to pull her thoughts together, to do anything. She groaned as she licked from the base to the tip, and barely recognized that she'd done it after the fact, only processing how far she was going after the second lick over the head and the first taste of his pre-cum.

It set off an explosion down there, making her stumble, almost falling over the table. Her legs went out from under her, her knees hit the floor, and her face hit his thigh as she gripped his cock like a vice. She whimpered, biting her lips, barely holding onto reality.

"Fuck...fuck..."

Those were words that should never have crossed a princess's lips, but they were coming now. She could hardly think, hardly breathe, even, as the thick scent of the dragon's musk and pheromones burned through her nose and mind. It turned her on more than any stallion had ever done, more than any mare had ever managed. She couldn't think of anything more than his cock, his magic cock.

But...but was it...

Twilight slowly pulled her head back up, huffing and puffing, to see that the dragon was staring at her with some concern. She put on a weak, embarrassed smile, floating a chair over to her.

"Wow..." she muttered. "I'll tell you what. Wow."

"Uh, yeah. Wow. Did you...cum already?"

"Um..." She looked down at her dress. "Kinda obvious, huh?"

"Just a bit. I guess you really like dragon cock."

"God, yes."

She didn't know that she would love something that much, that she could love something that much, but this cock? It was as perfect as anything could ever be. She grabbed it at the base again, studying it as she slowly pulled her hand up along the shaft, then let it drop back down again. There was something to the way that the flesh moved, how the thick cock was just begging to be squeezed, how even just looking at it seemed to put some sort of hypnotic command into her mind to obey its owner.

The mare reached down, fondling his balls, too. They were massive, bigger down there than her breasts were on her chest, and that was saying something. She rubbed them, stroked them, then brought her hand back up to her mouth and nose. Experimentally, she took a breath -

"Nnnngh!"

And almost immediately thrust her hips forward, falling back on the chair, gasping for breath as she came again. Nothing, not even the most perverted toy that she had gotten from her friends, had ever gotten her off like this. This was some sort of magic, not just pheromones.

As she flopped about for a few seconds, she finally managed to get some control over herself. She slumped back, her dress soaked to her crotch, sucked right up against her pussy, and she knew that there was no way that the dragon beneath her could avoid seeing just how horny she was, how...how puffy she was.

"Um...maybe...maybe it's time to equalize..."

She pulled off her dress, blushing slightly, but getting more and more horned up the more that she took off. In short order, she was naked in front of the dragon, and his cock looked harder than ever. Hard, stiff...and dripping.

Another soft moan escaped her as she gripped his cock, shaking her head.

"It's so easy for you, isn't it?"

"What?"

"Making people do what you want...getting pleasure...god...this thing...this is perfect..."

"Well, cocks make it easier to get off, that's for sure."

"And it looks so...sexy..."

"You sound kinda envious there."

"Maybe I am...maybe I'd like it to be that easy for me..."

Twilight had never thought that before, but the more that she stared at the dragon's cock, the more that she wanted to feel what having a cock was like. Her pussy was nice and sensitive, and she knew that it would make a stallion very happy to enjoy having their dick inside of it, but there was something...something hotter about the idea of having a cock.

Having a big, fat horse cock with fat balls that everyone had to look at. Having a big package that would make everyone sit up and take notice, that would ooze with that musky, sweaty, manly smell and get all the mares to come by and look at her. Yes...that idea...She moaned to herself, rubbing around her clit in frustration, groaning and biting her lip.

"Mmmph...it's not fair..."

"You want a cock?" he asked her.

"Yes...fuck, yes."

"Then why not..."

"...You know what? You're right!"

Twilight grabbed at her crotch as she stood up, rubbing her fingers in a circle around her clit. As a mare, she imagined that it was probably already bigger than what the dragon was used to seeing in females, but that wasn't a cock. It was nowhere near being a cock. She needed something that could thrust, that could penetrate, that could be stroked for hours...

Was this some sort of new addiction? Perhaps, but she honestly didn't care any longer. She wanted to feel that sort of masculinity down there. She wanted to feel what she was giving to this dragon. She wanted to experiment and see how much easier men actually had it.

"You just hold tight," she told the dragon. "I have to make some changes."

"I'm not going anywhere."

"Heh...yeah, guess you're right."

Grabbing a bigger, higher chair that would allow her to keep her crotch over the dragon, she sat down and spread her legs immediately. Rubbing her hands along her thighs, she felt her horn light up with her magic, and she started channeling it into her legs, then up them right into her sex.

"Mmmph..."

She moaned, and moaned louder as she realized that Engy was watching her. Blushing, she pushed forward a bit, making sure that her sex was over the edge of the chair so that he could see her puffy pussy and her...her growing clit.

"Does it...does it look good so far?"

"Yeah, looks like you're getting about the right shape. You want a flare?"

"Oh, oh, right!"

Twilight had almost forgotten the more flared shape at the end of a horse cock, something that was missing with the dragon's shaft. She almost wished that she could bring herself to give herself something like that, that stiff rod that had a few ridges along the underside, that seemed shaped to perfectly break bitches, but she was already testing the edges of her magic already. Giving herself a horse cock would be better than trying to jump species...at least, for the moment.

She groaned as she felt her clit continue to grow, feeling it push out from the top of her pussy. The way that it just swelled, the way that it throbbed and filled out with blood and magic as it stiffened and arched and pushed forward, was just amazing. Just her own heartbeat was enough to make her feel the pleasure of it bobbing up and down, and she swore that she might cum from that alone.

"That's not all that you're going to do, right?" the dragon asked.

"H-huh?"

"If you're going to do an experiment, you want to make it distinct, right?"

"Mmmph...yeah..."

"Well, if you still have breasts, or a pussy..."

"Oh, right...it's not fully male..."

"Yeah...But, you know, that's not bad. You could -"

"No, I need that. It's the right way...mmmph...the right way to run this...experiment...to see if it's easier...oh, fuuuuuuck..."

God, the feeling of something growing down there was distracting, but she needed to make it bigger, better, harder. Twilight felt her horn burning, glowing brighter as she pulled at more magic, forcing the changes, making them stronger, more obvious.

Her cock suddenly thrust forward, jumping from four inches to over ten in a split second. The alicorn screamed at the sudden burst of pleasure that followed, unable to believe just how much of a difference that made. She gasped for breath, her toes curling and digging into the legs of the chair, her eyes staring at the head of her cock as it flattened, pushed down, flared out. More and more horse features started to pop up along the width of it, filling out the smooth, featureless thing with mottled colors and warmth along the sides. A thick ring bulged out the middle, and -

"Ah...ah..."

She thrust her hips forward, her pussy feeling almost like a finger was running along the underside, slowly pulling that puffy, teardrop-shaped thing shut. She curled her toes tighter, her eyes clenching shut as she reached between her legs, desperate to feel this.

She caught the edge of her pussy disappearing, feeling the puffy flesh close and disappear. No sooner had that happened, though, than something started bulging along the base of her cock. They were thick, heavy, and they were slowly pushing her flesh down, purple skin becoming a purple sac, and that purple sac filling rapidly.

Twilight's tongue hung out of her mouth as she moaned, feeling her new balls growing in, forcing their way out from where her pussy used to be. She thrust her hips forward, her cock jetting forward another inch, then two. It was a foot long now, heavy and hard, and she could smell herself. She moaned, grabbing the head of her cock, squeezing it, feeling it squish a bit like Engy's shaft, and then she pulled it to her nose.

One breath, and she knew that she'd gained a measure of his pheromones. They were strong, thick, heavy on the hand and nose, and she throbbed all the harder...and even felt a twitch further back, somewhere that the mare had never felt before.

"What...what was..."

"Your ass?" Engy asked.

"Fuck...yes...it's...it's twitching..."

"That's part of what being a male is like. You don't have a pussy to fuck, so if you want to be filled..."

"But that..."

"It's not dirty. At least, doesn't have to be," the dragon said, his cock throbbing for her. "When you finish the transformation, you can test out if you like it."

"...Yeah...yeah, testing is good...testing is...very good..."

And she still had to get rid of something else before going from she to he. She reached up to her breasts, feeling them bouncing as she panted for breath, and she pressed down on them. As her balls grew out, her boobs sucked in, her nipples pulling in tighter as the fat and flesh that had weighted down her chest for years slowly disappeared.

The shifting mare moaned as she felt her body warping further still, unable to keep from humping the air. The new weight of her balls was perfectly placed to complement her cock, and it made her feel all the better to thrust, to give in to the pleasure of the cock, to want more and more and more touching down there. She wanted to know what a tongue would feel like along the flare, wanted to see other people zonk out as they smelled her pheromones. She wanted...she needed...

He needed to be like the dragon.

With a deep moan, Twilight came, thrusting his hips forward, feeling his balls swinging back and forth. The last of the weight on his chest disappeared, leaving nothing but his nipples as remnants of what had once been there. He groaned, his magic going out of control for a moment, slamming him from head to toe, making his balls even heavier, making them drop between his thighs until they hung down halfway to his knees. More than that, it slammed him with something else, a new core temperature, a warmth that burned in him all the time, something that would leave him wet and shiny with musky sweat.

As Twilight huffed and puffed, trying to catch his breath post-orgasm, he could feel his cock still throbbing, still bouncing, still eager for action. It had to be the dragon's pheromones, affecting him on multiple levels, keeping him eager even after orgasm.

He descended from his chair, dragging his tongue over Engy's chest to clean up the mess that he had made, his balls still churning like mad. The dragon chuckled.

"You think that you can let me loose, soon?"

"If we stay here..."

"You're worried about the pheromones?"

"Just a bit."

"We can stay here for a while, anyway, until you feel better."

"Alright...if you promise?"

"I promise."

Twilight gestured with his horn at the restraints, and they fell loose, allowing the dragon to get to his feet once more. His eyes were immediately drawn down to that hard dragon cock, and his asshole twitched hard at the idea of being able to get that inside of him, to get it throbbing, spitting, thrusting into him...

His cock twitched again, and his ass cheeks clenched hard. Engy must have seen it, because he chuckled.

"All that easy libido is hard to get used to, huh?"

"Uh-huh."

"Do you need something to get off to?"

"I want your cock. Bad. I need...I need to experiment..."

Experiment with what positions would feel the best, how it felt to hit the prostate rather than the g-spot, how it felt to jerk off while his ass was filled to the brim...yes, a lot of experiments, indeed.

As Twilight grabbed for that cock again, though, there was the sound of footsteps. Heavier footsteps, and a glowing feeling of power.

What the...oh, god, now?

The door to the basement opened, and Cadence, the Princess of Love, stared down at the both of them with her mouth wide open.

The End