An Egg-ducated Study

by XenoPony

Rating: mature
Tags: Sex, Ember, Twilight Sparkle, Slice of Life, My Little Pony: Friendship is Magic
Length: 10372

Twilight wants to discover more about dragons. Dragon Lord Ember is stuck in an unfortunate situation. Maybe the two of them can help each other out.

During her first dragon mating season, Dragon Lord Ember hatches a daring plan to make sure she's with the dragon she loves when her virgin time to bear eggs comes around... That is until she finds the dragon of her dreams is away with somepony else, oblivious to her feelings for him and dire need for a male's attention and anatomy.

Of course, it's not like she really cares that her lover is with another... or so she tells herself.

Regardless of how much she denies her true feelings for that drake, however, nothing is going to stop her body's need to mate, nor the large clutch of eggs steadily growing within her womb. Now, stuck half a world away from every other drake in the world who could quell her needs, she's running out of time. Twilight, however, may be able to help her; she always is eager to learn everything she can, and learning about dragons and how they work has always been a point of interest since she hatched Spike as a filly.

Contains: A dragon in estrus, ovulation, furniture destruction, species swap, gender transformation, a unique take on dragon genitals and mating habits, pleasurable cervical/womb penetration, internal cumshots, excessive cum, cum inflation, and egg fertilization (impregnation)

Featured: 9/18/17
Edited and Co-written by: LegionofPony

Image found on Derpibooru, image ID: 1137377

Published 2017-09-18 17:50:11 UTC
Last updated 2017-09-18 17:50:11 UTC

I Didn't Know Dragons Did That!

"Grr, this isn’t fair!" Ember growled as she paced up and down the crystalline room she'd been offered during her stay in Ponyville, claws softly clicking upon the smooth floor with every hard stomp.

"All this…so much flying, and I even arrive in time for this whole stupid breeding thing and he's with her!" the blue scaled dragoness went on ranting to herself, flapping her wings wildly."I'm the Dragon Lord! I should not be denied the right to have my needs be tended to when it's so easily in reach, I..." she paused for a second looking down at her reflection in the polished floor. The mirrored doppelganger wore a grimace upon its anger-flushed face and panted furiously in its rage, just as did the owner of that reflection. She stared at herself for a few moments more, then with an undignified huff she turned her head away.

"It's not like I want him that badly anyway. Not like I want him to mate with me throughout the whole mating season and it's most certainly not why I flew all the way here just because I wanted him to fertilize my clutch that badly..." Ember assured herself, closing her eyes and turning sharply on the spot. "I could have him if I really wanted to! I'm the most magnificent dragoness in the world, and no doubt he could resist me if I wanted him." As she spoke, she extended her wings and arching her back, once again opened her eyes only to catch another glimpse of herself in the reflection from the walls. Once again she scowled at the shimming imitation.

"Ugh, stupid crystals! Twilight said I can’t even eat you again!" Ember scolded, turning away from her image just as fast as she did before."I don't need you to remind me just how…how…oh, how stupid I feel right now." Her body sagged as she sighed and slid against the wall to the floor, sighing as her butt hit the floor.

Ember wasn't a fool, nor was she blind to all that she learned over the past few years about a relationship with non-dragons. Right now she knew she was being incredibly selfish, at least that's what ponies would say about her, but it wasn't her fault that the mating season was just around the corner; it wasn't her fault that the coming event was affecting her body in such drastic ways. No, it was all because of the oncoming heat and the changes in her body, that was why she was so selfishly thinking of Spike and his cursed marefriend Rarity!

Ember let out a low growl at the thought of that mare's name, then instantly knew how wrong it was to think like that. She hated the way ponies did things sometimes, the moral limits they put on one another were absurd and most unbefitting of a true dragon, never mind the Dragon Lord! Surely one mating season sharing Spike wouldn't hurt…but still, Ember knew that pony values meant a lot to the dragon whose affection she longed for, and she also knew that going against such values would destroy any of the good relationships she's built between dragonkind and Equestrians, and Spike especially.

"Grrr, why does this have to be so hard? All I want is for him to be my mate for just this season, just to fertilize my eggs! it's not my fault these stupid things happen to every dragoness every year!" Ember exclaimed sitting down with a hard thud.

Regardless of what she thought, Ember knew there was no way she was going to be with Spike as she wanted this season, and thought that there was no way she could ever be with him, as to try would only drive him away forever. But her body did not care about pony society, and even now she could feel the changes beginning within her. She knew that this happened to all dragonesses when they reached the right age, and she was now indeed at the breeding age, it was time for her to participate in her very first mating season.

Ember knew instinctively that she should right now be searching for a mate to fertilize her eggs right now before the eggs really started to grow, yet every male dragon back home was either too afraid of her or was already taken. She didn’t want hatchlings yet anyway, but she could resist her instincts that much as to avoid mating; knowing that finding a worthy sire to her clutch was better than suffering from being basically immobilized by the eggs within her womb for months until they finally dissolved again. The issue of her intensifying urge to be mounted by just about everything that moved grew ever stronger, making her whimper.

She'd come here to Ponyville in hope that Spike, who'd matured into a fine, and undoubtedly very virile, drake in the long time they'd known each other, would be more than willing to be her life-mate or at the very least help her out just this once by donating his seed for her clutch. Upon arriving in Ponyville and seeing him and that white Unicorn pony together after some searching, she really could not bring herself to come between them, no matter how big and tough her position demanded she appear. Other dragons would probably call her 'soft', and maybe they would be right, but Ember really didn't care. All she did care about was just how much she wanted to be cruel and steal him for herself, and she hated herself for thinking that way.

At that thought, Ember let out a sigh, her head drooping as she looked down at her lower belly. Regardless of whether she found a mate or not, she knew she'd ovulate any day now, and then she'd be stuck with a massive belly full of eggs for months, or until she found a drake willing to mate with her. The eggs did not have to be fertilized, she knew, and she didn't have to have sex, but flying back home while so gravid like that would be nearly impossible, as well as how utterly uncomfortable it would be to have to carry unfertilized eggs around for months, or at least until she found a seasonal mate back home. Not to mention the social implications of the Dragon Lord herself not being able to find a mate...

Ember could always leave back for home now but then risked her eggs swelling up on the journey home and getting stuck. That, and the fact that she was so horny right now that any movement made her wetter than she'd ever been. She really didn't want to risk going out of her room looking and smelling like she did anyhow, knowing that her very pungent odor would quite likely be offensive to a pony's sensitive nose. If somepony saw or smelled her, then figured out she'd only come here to be fertilized by the handsome hunk of a dragon only a few rooms down, she didn’t know what would she would do then.

"Grawr, why does dragon biology have to be so blunt and cruel?! I don't want to upset the only dragon I ever really cared about or my new pony friends!" Ember called out, then scowled down at her stomach and the unmistakable pool of feminine juices that had formed on the floor beneath her tail." But I can't take this! And you!" she pointed a claw at her dripping crotch, "You think I want to be gallivanting around with my own brood at this age? I still want a life, not a nest full of whelps!" she yelled.

All Ember got in retaliation was a loud growl from her abdomen and a shudder of pleasure as her rear shifted over the smooth floor. Her wings and tail fluttered as she felt a tingling knot slowly begin to form in her lower gut, where she knew her womb was. She winced and began to knead her tail between her claws as a buzzing pleasure swelled within her as that knot grew slightly bigger every minute.

"So, this is what it feels like to start ovulating?" Ember grumbled, twisting her tail more as she felt what had to be the start of her first egg forming inside her, a second-knot forming, "I hate it!"

Nevertheless, as angry as she was with her body's relentless need to reproduce, there was nothing Ember could do now but hope for a miracle now that she'd started ovulating. She'd be stuck with up to half a dozen eggs grinding around in her swollen belly for weeks if she did not find a mate, and she dare not risk her reputation searching for any kind of magical aid. She was steadily being forced to realize that she'd not given herself many options by traveling so far from other of her own kind, and she went from clutching her tail to squeezing it tightly in anger. Feeling the tingling in her gut, her eyes narrowed and smoke began to rise from her nostrils.

"I hate this! Stupid eggs!" Ember growled out but, within second of that loud outburst, something suddenly caught the dragoness's attention. She heard a knock at the door and instantly she froze. "W-who is it?! I-I'm not expecting guests!" Ember stammered, standing up and trying to make herself look as imposing as she could while also trying to hide her obvious sexual need. There was a long pause as Ember stared right at the door, the tension in her whole body almost making her tremble. The tingling in her gut and the pulsating heat under her wet tail grew more and more with both nervousness and anticipation, a third then fourth knot forming as two more eggs began to form.

After an unbearably long few seconds, a voice sounded from the other side of the door. "Hello? Lord Ember? Is everything alright in there? I heard shouting." the voice, despite being muffled by the door, was unmistakably that of the pony Alicorn princess, Spike's closest friend and basically mother, Twilight Sparkle.

Ember opened her mouth to respond, yet words caught in her throat and she said nothing. She coiled back like a tensed spring, her heated urges like the bubbling magma of a volcano that was about to explode. She really, really needed someone to give her a good fucking right now, and really wasn't in the mood for conversation.

"Hello? is everything's okay? Do you need help with something?" Twilight asked again, and once again Ember couldn't bring herself to do anything other than fidget on the spot.

Ember knew that she couldn't ask Twilight for magical help. She'd be a laughing stock back home for sure and her reputation as dragon lord had to be upheld, yet on the other claw, she was going to be stuck here in an awful mess otherwise.

"Grrr, why can't Spike just love me like he loves that stupid white pony!" Ember growled again on reflex, only to realize a moment later what she'd said and just who was outside her door, wincing.

"Wait, what? I'm sorry I must've misheard you… hahaha, silly door. Just...give me a second," Twilight responded and, before Ember could even fully consider what the alicorn may have heard, the door to her room opened.

"Wait, no don't come in here! I’m..." Ember yelled, jolting upright and spreading her wings as she waved her foreclaws at the door, but it was too late.

Twilight stood in front of Ember for a long moment, her eyes passing over every feature of the dragoness, then studying the room for any danger. Undoubtedly Twilight was thinking about her guest with fascination, and though most of the time Ember would like to be viewed in no other way, she knew that with Twilight, that fixation was less about marveling at her brilliance and power, and like studying an interesting potential test subject.

While privacy was never really a thing with dragons, right now Ember really hated the fact that she was appearing so weak for having her own violated. Of course, she didn't think it would take somepony as perceptive as Twilight long to notice her rather unfortunate condition before long.

"I'm sorry, I must have misheard you at the door Ember, but were you talking about Spike?" Twilight asked, her inquisitive look momentarily broken by one of skepticism.

"No no, of course not! I definitely wasn't thinking about him at all! He's about the last dragon I want to think about right now!" Ember declared, crossing her arms and sitting down hard in an effort to dampen the strong musky scent emanating from under her tail.

Twilight let out a sigh, then took in a deep breath...and the look on the princess's face as she did made Ember wince. Clearly standing up for that short while had made her very strong scent rather prominent in the room, Twilight quite obviously catching wind of her. Ember really did hate how stupidly strong the smell of an ovulating dragoness was.

"By Celestia, what's that smell?" Twilight asked obliviously, making Ember shift a little more, "I mean It's like someone let a whole herd of cattle in through here! It's..." Her voice fell short as she looked at Ember shuffling away,"...oh my goodness, that's not…is it? Oh, by Celestia, I'm so sorry! I had no idea!" Twilight swiftly stammered, turning bright red.

Ember's first instinct was to snap back at the princess, to make her feel degraded and shameful as she now did, and with all the hormones raging within her, that really did feel like the right thing to do. Yet, she caught herself right at that last moment and grit her teeth. "Well, there you have it then. That's what's wrong with me. Have you never been near a dragoness just before the mating season? Well, now you know what it smells like!" Ember spat, her tone sounding a little harsher than she'd intended.

Twilight took a step back at the sight of Ember's scowl, and her tone, yet she couldn't stop the heat growing in her cheeks as they reddened further. "Oh...right. As fascinating as that is, I'm so sorry Ember! I didn't mean to intrude..." Twilight assured the dragoness, but Ember just sank into her folded wings, hiding herself as well as she could in the membranous appendages.

"Stop saying sorry, it's annoying!" Ember snapped, "Besides, it's not like I care. Every dragoness has to put with this stupid stuff once a year, and I just got myself stuck in the wrong place at the wrong time," Ember uttered a low growl at the idea of her body's disobedience, “and with the wrong species.”

"Well, okay, but are you sure you're okay? I mean, I won't tell anypony about your...condition...I promise, and you can just wait here at the castle until this…mating thing…is over, right? I'm sure it will be fine..." Twilight began, but Ember cut her off.

"No I can't just stay here. That's not how dragons work!" Ember snapped, making Twilight take another step back as Ember elaborated on that; "Every mating season, an of-age dragoness must find a male to fertilize her eggs before they grow. I'm now of age. If that dragoness doesn't find a mare, then the unfertilized eggs will grow inside her anyways, and she still won't be able to lay them until she's been screwed hard enough so that makes her orgasm and start laying!" Ember huffed, glaring at her soaked crotch, "Now I'm going to be stuck here with a belly full of stupid eggs for months until I find some dragon willing to be my mate this year and cum in me!"

"Oh, I see...interesting!" Twilight said, the thought of learning something new making her ears perk up, "I mean I always wondered how dragons laid their eggs and their whole mating season thing. Your bodies don't give you much of a choice? It's procreate or else? Wow, I suppose it's a pretty good way of ensuring your survival as a species, and... " Twilight started to ramble but was once again silenced by Ember's glaring. "Okay, okay, I see your issue, but there are no dragons here in Ponyville to you know…’help you out’. I mean, besides Spike, but he's with Rarity so he certainly can't."

"That's exactly my point! The only reason I came here knowing what was about to happen to me is because I really, really like Spike that way! so much so that I…kinda…maybe wanted to have my first brood fertilized by him. I didn't know he was with Rarity and now I feel bad that I really don't want him to be anywhere near Rarity when I need him like this! Besides, it was a stupid decision. I wasn't thinking with my head, just… with what's under my tail." Ember ranted, before sinking back into her wings and really trying to ignore all the tingling and knotting feelings that were going on inside her womb.

Twilight waited for a few moments, raising a hoof to her muzzle in thought. She really had no idea about Ember's predicament, as ponies knew next to nothing about how dragons bred. She was pretty sure all the dragon eggs that had ever been attained by ponies, including Spike’s, had either been bought, traded or stolen from the Dragonlands.

Still, Twilight knew that she needed to help; that she couldn't just leave her friend Ember stuck here to waste away as her body filled her with eggs. She thought, knowing that she had to come up with something, and it was right then that she had an idea...and saw an opportunity to educate herself in a way nopony had done before at the same time.

"Hey, Ember, I'm sorry about Spike. I know it must be hard for you to see him with somepony else given how you two met and all, but… well, you're doing the right thing and that's proof you're a good dragon, just like him." Twilight said, with Ember looked up from her wings.

"Yeah, thanks, but being a soft 'good' dragon isn't going to help me out of this," Ember grumbled back, shuddering at the buzzing heat as it shifted between her thighs.

“Well, can't you just have a pony stallion…‘help’ you? I've heard they're pretty big…” Twilight asked, not knowing why neither had thought of that before. Surely a stallion could make her orgasm!

“You think I wouldn't have grabbed the neared stallion and drained him of every sperm in his balls if I knew that would help me?" Ember said, her teeth bared as she felt another twinge in her womb, "No, all that would happen is he'd end up with some major bruises on his dick and crotch, a shattered pelvis, and probably severely dehydrated. It's happened before, and the dragoness was still full of eggs.” Ember huffed, “Ovulating dragonesses only react to a dragon dick attached to a drake, some sorta magic bonding thing happens when he first penetrates her, then the dragoness can lay. Nothing else will make a dragoness cum except for a drake…”

“Not even a drake-shaped dildo?”

“Even if that did work, and it won't, I wouldn't stoop to such levels! I'm the Dragon Lord for the Staff's sake, not some loner in her room cumming to some toy!” Ember growled, steam coming from her nostrils as she got angrier.

"Ok, ok, no need to get so heated about it...pardon the pun,” Twilight said, earning a roll of the eyes from Ember, as Twilight already noticed a slight bulge growing in Ember’s lower belly. “Well, what if I said I could help you out? I know an awful lot of magic and I'm sure there's something I can do for you. How long do you have before, you know..." Twilight asked, already noticing a slight bulge growing in Ember’s lower belly.

"Before I'm the size of a whale and stuck here what will feel like forever, suffering without a mate? About four days before the eggs before I'm stuck lugging them back to the Dragon Lands and finding a mate there. But, I really don't want to just be zapped by some pony spell that takes them outta me. Dragons don't do spells," Ember finished bluntly. "But if you want to help me in... some other way, I suppose I have no other choice. I’m… kinda desperate here."

"Four days...that should be enough time to me to find something…erm…non-spell related, I'm sure." Twilight said, more reassuring herself than anything else.

Ember looked at the purple mare across from her from behind her wings and simply grumbled. "Okay, I get it. You do whatever you can to make sure I'm not stuck here, and without your pony magic, but don't you dare tell anyone about anything we do! As far as I know, it'll be too late to fertilize any of the eggs anyway, so I just want the stupid things out of me when it's time." Ember stated, and Twilight stopped muttering and nodded.

"Four days...don't worry. It would be wrong not to help you, your highness. Plus, I bet I can learn a whole lot about dragon anatomy as a bonus!" Twilight said, acting a little too giddy at that last part for Ember's liking.

"Hey, this isn't going to be some lesson on how my stupid insides work! It's..." Ember started to rant, but before she could finish there was a slam of the door as Twilight pranced out of the room.

Grumbling to herself, Ember coiled back into a ball, ignoring the wetness her dripping pussy had left beneath her. Despite everything she knew about ponies, and how she felt about appearing so weak and helpless in one's presence, she knew as she felt another knot begin to form in her tingling stomach that Twilight was really her only hope.

*******

Only two days had passed since Twilight last saw Ember, and as she trotted down the long crystal hall of her castle, she couldn't help but wonder what she was about to get herself into. She'd spent almost all of her time the previous days since she'd spoken to Ember researching about dragon mating season and everything that entailed, yet like she'd said to Ember, ponies had no real idea how it worked. Nevertheless, she hoped that the plan she had come up with would be satisfactory for the Dragon Lord, given that Ember would likely never get a chance to be with Spike as she'd always wanted to, not even for the hour a mating would take.

Twilight couldn't really imagine how hard it must have for Ember to have come all that way for Spike to be her mate, only to have him be claimed by somepony else. While she appreciated the relationship both Spike and Rarity had Twilight knew from her studies of dragons that Ember must really be suppressing her feelings and instincts. By all accounts, she should be more than a little angry at Rarity, as dragons were usually accustomed to fighting one another for things such as mating rights or even food sometimes.

Even so, as much as Twilight felt sympathy for the dragoness, she couldn't help but see the opportunity she'd been given; a chance to see firsthoof how dragons mated and laid eggs was amazing for a studious somepony like her to observe.

Even though Ember had made it pretty clear that there'd likely be no hatchings as a result of her first clutch of eggs, that was fine with Twilight, as all she was interested in was expanding her knowledge and getting a little hooves-on experience with dragon mating.

Of course, as Spike was unavailable to see to Ember's needs, there was still no other dragons for a hundred miles. Ember didn't want to simply have the eggs teleported out of her by a spell, so Twilight knew she'd have to take care of Ember's needs herself. Transformation magic was nothing new to Twilight, but something so specific as transforming in the way she needed to required a little more than a simple spell. She wanted to make Ember the perfect mate and such a specific transformation would have taken a spell of monstrous proportions.She could have probably managed it if Ember was open to the use of any magic, but she'd been forced to compromise and instead make the solution into a liquid form, a Zebra elixir sure to make a form perfect for Ember's needs, and a transformation that could give her very insightful look into dragon life.

Just thinking about changing form like she was going to made an excited tingling go through Twilight's whole body from horn to tail. She was about to go through something nopony had ever experienced, and the excitement was almost unbearable. She could learn so much, and she had to admit that the thought of becoming a perfect mate for the Dragon Lord, of having her body molded and changed into a big strong drake, did make her more than a little aroused. She'd often wondered what it would be like to be somepony else or to change gender, thinking how she was going to have to take so many mental notes during her experience. It was then, as her mind whirled with the fresh and captivating ideas, that Twilight finally reached the door to Ember's room and knocked on it once.

"Yeah, who is it?" came a very disgruntled sounding voice from inside, the words uttered between tired grunts and breaths.

"Hello Ember, it's me, Twilight. I'm here about what we discussed before?”

"Okay, okay, come in and be fast! I don't want anyone else to see me right now," Ember called and the alicorn swiftly opened the door and slipped into the gloomy room. The curtains were all drawn and any other lights extinguished. In fact, all Twilight could make out ahead of her was a large rounded mass in the shadows. Then the shape-shifted with a groan and Twilight finally lit up the room with a small spark of magic from her horn. What she saw was a little more than she was expecting.

The mattress and bedclothes had been torn to ribbons, the shredded fabrics and covers rearranged atop the frame into a large nest-like structure. Curled within the nest was the large, gravid from of Ember. The dragon lord had her head and tail coiled around the massive bulge of her distended abdomen, with one wing draped over the taut mass. She looked unsure and her blue scales appeared painfully tight as the dragoness gracelessly rolled to try and get a better view of Twilight. Then with a low growl, Ember lifted her head and the large mass of her egg-filled belly gurgled.

"It's about time you got here! I've been getting bigger ever since you left...oh, and sorry about the bed, nesting instinct really hit me hard, making me need to make a soft landing for my eggs." Ember explained, pressing a claw against her firm belly.

Twilight winced, swearing she could hear the grinding of eggshells as the things rubbed against one another inside Ember. If Ember looked like this after only two days, she had to wonder how would she have looked after the full four. Looking at the dragoness she could really see now why flying home had not been an option and she could appreciate even more how awkward it must be to be filled up like that, only to be begging for the sweet release of mating. That was all the more reason for Twilight to set her plan into motion, however, and at that, she looked back into the pair of saddlebags she'd brought in with her.

"Wow, you're really...well, big Ember. Do you know how many are in there?" Twilight asked as she fished through her saddlebags in search of the potion she'd made.

"Hah, you expect me to know? All I can say it's probably not too many. As far as I can remember, virgin dragoness usually only produce about three to four eggs on their first times, but it feels like so much more..." Ember responded, gritting her sharp teeth and flicking her stone-hard belly.

"Well, from what I've read of ponies’ limited collective knowledge of dragons, three seems about right for a dragoness's first time, but that's only what ponies know...then again, I suppose we'll find out soon enough!" Twilight said a little too excitedly as she levitated out vile of shimming pink liquid and inspected it in the light of her magic.

"You got that right! I'm so beyond ready for that big dragon cock I need! I don't want to be full of these stupid things moment longer! Dragons don't do fat!" Ember asked, before adding with a little more enthusiasm. "Who did you find? How'd you find any other dragons around here?"

"Well no, I didn't find any other dragons. Instead...I'm going to...mate…with you. You really need to get those eggs out bad and I like learning...so I thought it would be an interesting trade-off!" Twilight elaborated and Ember paused, one claw pointed at the alicorn.

"What, you? You're a pony! I told you before, any kind of dragon mating would rip a pony to pieces!" Ember laughed, her belly grumbling at the movements.

"Hey, I'll have you know I've had sex a few times before! Never like this, but with stallions...but...aargh, I'm not having sex with you like this OK?!" Twilight exclaimed, then pointed her glowing horn at the laughing dragoness. "Let's see, I just have to get a magical blueprint and a small DNA sample of the thing I want to become a male version of..."

Ember froze the moment the magic hit her, another tingling sensation running through her whole body before it vanished. A small cloud of blue light, as well as a microscopic cell of one of her scales, passed from her chest to the bottle in Twilight magical grip, the formula turning from red to the same cyan-blue color as Ember's scales.

"Hey! I told you to keep your pony magic away from me! I mean, what was that even supposed to do?! I don't feel any different!" Ember grumbled, looking herself over. "Nope, big fat pile of eggs is still in there, and I'm still horny as all bucking Tartarus..." Ember gave a smokey snort as she grasped her gravid midsection.

"We were never going to get anywhere with zero magic sorry to say. I kept it to as much of a minimum as I could, but I can't make a potion work without the proper catalyst." Twilight said inspecting the potion again before removing the cork seal, "You may not have Spike, but with all the enhancements and specific modifications I've made to this potion I'm sure I can take care of your egg problem far better than he could!" Twilight gave coy smile as she downed the whole bottle of blue liquid, making Ember's face contort in confusion.

"So, what? Was that supposed to do anything to me?" Ember asked, but even now she could feel herself heating up more with anticipation of what might happen.

Twilight just looked at her for a long moment, looking a little perplexed herself as she smacked her lips. Then she moved over to the room's mirror and inspected herself.

"Hmm? It should be working by now. With all the ingredients I put in there, I should be an alpha drake in no time," Twilight said, and Ember felt herself go rigid.

Wait, you did what?" Ember blurted out, making Twilight turn to look at her with a wry smile.

"What, I wasn't just going to leave you or this opportunity to learn unintended! I put my all into every..." Twilight began to say only to be cut off as a loud, smoke-spitting belch. “Wow, that really was powerful," she said, blushing and pressing a hoof to her muzzle. No more than a few seconds later a loud growl emanated up from her stomach and she doubled over, clenching her gut.

"Oooo, here we go...oh, I feel like I'm on fire but it's so good...urrg, it's starting, try to take mental notes Twilight, just try," Twilight muttered seemingly more to herself, her body growling and grumbling up a storm. Meanwhile, Ember simply watched with growing fixation as the change swiftly began to take hold of the alicorn. The gurgling of Twilight's stomach soon became accompanied by a series of quiet cracks and clicks as her body warped and shifted. Twilight let out a moan of what sounded like half-pain half-pleasure as her legs straightened out. Her shoulders and hips squared and her chest began to bubble outward into a more barrel-like shape as her legs grew longer and more rigid.

Ember watched as Twilight’s hooves began to ripple like liquid before soon dragon claws sprouted up from each, growing rapidly and each growing a sharp point at their the tips. As her new draconic legs began to take shape, Twilight was forced to stand on two legs and arched her back with another groan. There were a few more cracking sounds as she stretched, her body visually growing longer right before Ember's eyes. Her lavender fur began to part and transform into scales of the same coloration, replacing her soft skin with hardened keratin.

"Ooooh, this feels so weird...but it's good, like a nice stretch...I feel...oh, Celestia, I'm so turned on right now!" Twilight yelled in a deepening voice as she flared her wings and feathers morphed to reveal a rough, light-pink membrane with a deeper lavender scaling covering her wings’ rims and fingers.

Part of Embers mind really wanted to fly away at that moment, creeped out if nothing else by the pony transforming into a drake, yet her bloated body was in no shape for that, nor was the larger majority of her mind. Seeing the petite mare slowly growing into a strong, handsome dragon that was swiftly beginning to make even the dragoness herself feel small, was intoxicating. She could feel that anticipation within her blooming into a powerful, heated longing to feel this new dragon inside of her aching pussy.

"Arg! Ooooh, that one felt really good," Twilight uttered in a voice now far deeper than her own as with a pop her once smooth plot began to sprout spines trailing up her back and becoming sharp, and her back arched outwards as a long scaly dragon tail curled froth from where her original tail’s dock once was. Twilight’s new, long and scaly tail wafted in the air like a spiny snake before finally ending in a webbed fin as it reached full length. Ember's eyes followed the snaking thing back down towards Twilight's new rear end, marveling at the fine piece of dragon butt it had become. Yet she could not stop there. No, the whole of Twilight's body had rapidly become so sexy that she almost rivaled Spike himself, at least from Ember's point of view.

The only thing that ruined the illusion, proving that this alpha was one a small mare, was the fact that Twilight's head and face were yet to change. That was until Twilight rolled onto her back, the change now moving onto her neck and extending it away from her shoulders with another symphony of grinding sounds. That part of Twilight's morphing was not what caught Ember's attention though. What did was the features now growing between Twilight's new hind legs.

Ember saw that the soft pussy of a pony mare was gone, and now from under the light purple scales of Twilight's crotch grew a large bulge that expanded until it was fully hard. Before it could grow too large, a fine slit opened between the scales and, as it slid from within it, the biggest dragon cocks Ember had ever laid eyes on burst out of it, each sleek, tapered member marked by rows of small, clear spines. Two distinct, rather large, bulges above that slit denoting his internal testes. Much larger balls than a normal drake’s, Ember noticed, as other drakes’ weren’t visible through their scales like that.

"Oh, haha, no need to guess what those are," Twilight boomed as she felt the monstrous new feature grow firm and rub across her scaly underbelly, “I’m definitely a male dragon!”

Pulling her eyes away from Twilight's new, deep red penises for just a second, Ember saw that the transformation was nearing completion. Twilight's face scrunched up before shooting outward to form a long muzzle lined with rows of sharp teeth. The light from her horn flickered out as it sank into her lengthening forehead and disappeared, replaced by rows of dark, purple spines. Her cupped, fluffy equine ears morphed into a lavender ridge around the back of her head as a pair of curved horns finally sprouted and coiled like spirals behind her head. Then, with one last crack and a snort of smoke, the whole thing stopped and Twilight fell back gasping, her intake of breath now far more like the gale of a hurricane.

"By Celestia, that felt crazy!" Twilight shouted as she stood up a moment later, the new dragon revealing to Ember just how much smaller she was in comparison to the giant, lavender-scaled alpha drake. She both hated and loved herself for thinking just how attractive she...no, he...Twilight...really was. She had to constantly remind herself that this was a pony princess, not a dragon, yet the more she looked at some of Twilight's more obviously sexy extremities, she really couldn't care about that.

"Wow, look at this! I feel so big and powerful! Oh, I'm going to learn so much about dragon from this!" Twilight said, snorting a blast of smoke before looking over herself, stroking her wings, flicking her tail, gnashing her now gem-crushingly-sharp teeth, and finally looking between her legs at her underside.

"Hahaha, look at those things, they're huge... and I only half-believed that drakes really do have two penes until now! I had no idea the potion would be this effective. But let's see, they're pretty large proportional to the drawings of drakes in my books, and I see that most of the reproductive organs seem to be internal on male dragons too, with no sheath and no visual genital and...wait...what's that feeling...and that smell, why does it smell so good in here all of a sudden?!" Twilight went on, not so subtly taking her new cock in her talons and gripping it with her new claws.

Moving as best as her egg-filled form would allow, Ember slumped off the bed and waddled on all four towards Twilight, trying her best to focus on his eyes and not what he himself was studying.

"That's your cocks getting hard and ready to breed me... I thought you knew this stuff? Now, are we going to get down to fucking or not? I want to be free of these stupid eggs!" Ember stated, putting her foreclaws on her hips as she wobbled as she stood up.

Twilight stopped instantly and as soon as she looked at Ember her face turned from one of amazement to one of pure lust. "That smell, it's you?! Why in the wide, wide world of Equestria does that smell so good?" Twilight asked, practically drooling as she regarded the dragoness.

"Perhaps because any horny dragon could smell my pheromones from a hundred miles away and...now you're...well, you're a very big, sexy looking dragon who can smell my need! But I'm getting really impatient just standing here, so would you kindly stick those huge things inside me?!" Ember growled out, throwing herself back onto all fours and lifting her tail to shove her soaked pussy right into Twilight's face.

Twilight studied the blue folds for only a moment, taking note of what color they were and how much it differed from the anatomy of a pony. While Ember's slit looked almost like a normal mare's, it was instead horizontal instead of vertical and was more teardrop-shaped while lacking a visible clitoris, as well as Embers inner flesh being a royal purple instead of a mare's universal light pink. Looking at the smaller size of it and what she held in her claws, however, made Twilight realize right now that she may have made her potion a little too strong, both because of the size of her members and because she could hardly think of anything other than Ember's irresistible musk.

This dragoness was so needy it was unreal, and only now were Twilight's eye open to that fact. Within seconds, all that though of educating herself on dragons had been thrown right out of the window as Twilight's new dragon mating instincts took hold and she lost herself to that smell. She didn't even consider what she may be missing as she leaped atop Ember like a hungry predator, pinning her on her back to the floor with her as Ember presented her pussy and raised her hips high.

Ember moaned deeply as Twilight wrapped her claws around her massive belly, humping around until she felt Ember's slit, before forcing her cocks inside to the hilt with all the ferocity her new body allowed and feeling Ember’s pussy strain to stretch to its new filling. "Garr, watch it! You're pretty rough for someone who was a namby-pamby pony five minutes ago!" Ember snapped, even as the feeling of her lips being violently parted and her body being grasped tightly between a virile male's claws made her feel hotter and wetter than ever.

"Just shut up and let me breed you! I'll have those eggs out in no time!" Twilight growled in a way that made Ember wonder just how much of the original mare was still in there, not that she cared a bit about that right now. She could feel the long, slender masses that were Twilight's new draconic cocks so deep inside her wet folds, the spines that had grown along their lengths scraping against the silken walls of her pussy and sending sharp lances of pleasure up through her whole body. She could hear the subtle scraping of eggshells as, with each hard thrust of his monstrous rear legs yanking him roughly in or out of her, the eggs within Ember's belly rubbed against one another.

The dragoness tensed hard, her muscles clamping down on Twilight's length as he slid out, before going slack as he entered and repeated the process, feeling so utterly full as Twilight’s members went so deep. All Ember could do was grimace in pain and pleasure as Twilight's promises of a super horny dragon were fulfilled in full, this indeed being as rough of a mating as she could have expected from any drake back home. Despite the rough beating of cock, claws, and scales, Ember loved every second she felt Twilight's massive body lying atop her, his cocks ramming all the way to her womb.

"Damn, this feeling...oh, it's so good...so enlightening, I never knew how good it was to have a cock like this and you, Ember! By Celestia, you're so beautiful, how could I have not seen you like this before?" Twilight asked, thrusting hard into Ember once again, and rubbing her claws firmly across Ember's egg-filled belly. She felt an egg under the scales as she grasped the bulging mass. She could also feel the others all moving around like a massive, taut bag filled with pebbles.

Twilight could barely think about anything that may be going on inside Ember, all of that strange biology and bodily functions would have been so fascinating to learn about, but she couldn't bring herself to think about any of that. She needed to breed her mate and claim her brood. "Wow, Ember you're so tight, far more than any pony would be I'm sure. You feel...well you feel so much different than it did every time I was mounted by a stallion!”

"Glad to show you that there's far better pussy out there than a meager little pony's now...e–enough with the sweet talk, I-I, ooooh, I think I'm going to cum!" Ember howled, and as Twilight obliged as she felt Ember stiffen.

"Defeated so soon, I thought a dragon would last far longer than that?" Twilight teased knowing that Ember was about to do far more than just orgasm.

"Y–you wouldn't be s–saying that if you'd been like this f-f-for two days, a tickle could have set me off! Now s–shut up and make me cum!" Ember forced herself to say through her pleasured exertions

The moment she finished talking, the dragoness went as rigid as a board and her tail rose so high it was able to coil back around Twilight's midsection and squeezed her like a snake. Meanwhile, Twilight could feel the eggs within Ember shift as one steadily pushed it way back towards her cock and started to force its way outward. Nowhere near climax herself, Twilight pulled out as Ember’s egg-filled canal and she growled in pain.

"Gaaaah, this is it...oooh, I'm laying one! "Ember cried out in a mix of pain and orgasm, Twilight watched in distant fascination as the folds of Ember's soaked oviduct parted and rapidly began to widen, the curve of a smooth blue egg slowly forcing its way outwards as Ember came hard. She felt as her muscles' once drawing movements reversed to pushing outwards, howling and growling as she clawed at the already-shredded mattress, the whole of Ember's dripping pussy was forced wider and wider until it was almost the size of a large mango. Then, with a wet pop, the egg slipped free and landed in the soft cloth of the nest.

"I... I can't believe...there could be at least another three in there. Damn, that actually felt kind of good. I'm so, so horny," Ember managed to say through her tired panting after a moment of recovering, squirming as her aftershocks rolled through her.

"It's actually kind of fascinating how your body requires something like an orgasm equal to that in order to stimulate lying. I can't believe I actually managed to get it out of you," Twilight responded, in surprise. But her attention wasn't allowed to focus on the fact for long as she was soon captivated elsewhere once again as Ember flicked her and it tightened further around Twilight.

"I think I made the potion a little too strong, I'm supposed to be taking note but you...awww, you too sexy to resist!" Twilight complained, her eyes fixed on Ember puffy folds.

"Well, why don't you get back to work, I've still got some more eggs to lay and I can take all the orgasms you can throw at me!" Ember teased then suddenly moved back as Twilight had once more mounted her, ramming Twilight's cocks back inside her burning pussy.

Taken off guard, Twilight gasped as the silken tunnel was shoved around her stiff cocks. Then the alicorn-turned-dragon grit her teeth as her overwhelming urge to pump into Ember as hard as she could kicked back into full overdrive. The more Twilight thrust forward, the more Ember forced her rear up and right into her crotch, every aspect of her subdued pony self-was lost as she went on and on, desperately trying to even consider what she was doing and what she may learn from it. All the while she could feel that subtle fire that had flicked to life within her the moment she'd touched her cock grow hotter and hotter until it was begging to be released.

"So much to think about, so much to remember...this...this is too distracting! I'm not going to learn anything!" Twilight moaned through her exertions and the pleasure of feeling Ember's passage kneading his cock inside her, begging him to fertilize her eggs.

"It's called me being sexy...arg, you're not supposed to be thinking about how to better educate yourself while fucking me!!!" Ember snapped, shuddering as she felt another orgasm approaching and with it the shifting of another egg.

"But I feel so weird! I didn't know what it felt like to be a male on the brink of orgasm before! It's amazing, maybe even better than when I was a mare and that stallion..." Twilight stated, only to be cut off by a loud grunt as she thrust hard into Embers pussy penetrating deep into her egg-filled womb.

"You're so amazing, feeling how your body works, how your eggs move inside you and how you lay, it's all s-so fascinating and...ooh, I think I'm finally going to cum!" Twilight said as she felt a sensation to how she felt when she climaxed as a mare, a distinct if different tension building in her pelvis, focused around where those lumps that her testes were before it burst.

"Don't give in on me yet, you're a dragon now! Don't you dare cum until this next egg is out of me!" Ember called out, but it was far too late. Twilight moaned loudly as she hilted as far as she could, and Ember soon found herself feeling warm in all the right places as Twilight finally climaxed and those monstrous cocks she'd given herself finally filled her full to the brim with cum.

"You're supposed to be making me slimmer, not bigger!" Ember exclaimed, even as she was feeling very deeply satisfied as Twilight's constant stream of release filled her up once more, then soon after the second of her eggs reached the lips of her pussy and she was long in the pleasurable buzz of her own orgasm.

"Sorry, sorry," Twilight repeated as she pulled out in a rush, spraying torrents of warm dragon cum all over Ember's rear end and the floor, as well as hosing down the already-laid egg with his seed incidentally.

Ember didn't really have time to think about that however as she cried out and the second of her eggs pushed its way out of her folds, forcing them wide once more before eventual popping out and falling to the floor beside the first of her clutch, though this one was coated in Twilight's cum. Ember fell forwards, tongue hanging from her muzzle as she gasped for air, and yet amidst the pools of cum that Twilight had filled her bloated belly with, she could still feel the pushing of another egg or two.

"A-ah! T-that wasn't it, there's another coming out!" Ember yelled as she uncoiled her tail from around Twilight and the larger dragon fell back. "Gurr, how many of these things do I have to push out of me!?"
Huffing and gasping for air, Ember felt as the second egg somewhat painfully forced its way into the world, arching her back and compressing her bloated belly until finally, in a torrent of both her own and Twilight cum, the second egg fell from her folds and landed beside the other two.

Taking a moment to collect herself Ember, grasped her belly with one claw. It wobbled and jiggled like jelly because of the semen Twilight had pumped into her, yet amidst the lake of cum, she could still feel the rolling of one last egg. She then looked back over her shoulder to see Twilight panting hard, the lower half of her draconic body completely covered in hot, sticky dragon cum.

"Two eggs in one orgasm…wow. I think that's supposed to be rare or something..." Ember observed.

"That...that was really something! I feel so strong and this..." Twilight pointed to her cum-oozing cock with one talon, "This is so... I've never felt anything like it! Please, let me fuck you again!"

"That's dragons for you, not so soft as you ponies. We don't do soft," Ember stated proudly, then threw her pussy back into Twilight's face before rolling onto her back. "Now come on and mount me, there's still one egg left in there."

Twilight took one look at the glorious display of soaked blue scales and deep blue folds she was once again presented with her and licked her scaly lips hungrily, her expression making Ember smirk.

"Or would you rather have your face just a little closer to the action this time?" the dragoness asked wryly, and at Twilight's puzzled glance she elaborated coyly. "Go on, my naughty little dragon princess, eat out your Dragon Lord now!"

At that bold decree from her part-time lord, Twilight once again lost all control of her sex-crazed dragon mind and within seconds dove muzzle-first into Ember's pussy. Throwing herself back, Ember reeled in blissful pleasure as Twilight went to work, her long, draconian tongue reaching deep into every corner of Ember's burning folds. She really didn't know whether she could take another orgasm, exhausted as she was after three in rapid succession already, but she really didn't want to be left with the last egg still inside her. Besides, dragons didn't do giving up before a job was finished.

Twilight merely acted on an instinct she'd never even imagined having before, the insatiable need to breed with this fertile dragoness driving her in a way similar to how she'd planned this all to happen while brewing her potion, only to find that the actual result was far more potent than she'd expected. All the while she was sinking her long, forked tongue deeper and deeper into Ember's egg-passage, far more so than any pony could ever hope to achieve.

As she'd once more mounted and jammed her cocks into Ember, humping roughly and without a care in the world for Ember as her dragon greed took over, Twilight revealed at the feeling of Ember growing tighter, before once again going slack as she moaned and contorted with pleasure, her cocks apparently bringing her to climax. Twilight felt herself cum again to those kneading inner motions of a climaxing dragoness, filling her belly fuller with hot, virile dragon cum, as Ember gave a firm shudder and Twilight could feel as the egg shifted within her cum-bloated insides, the hard shell brushed against the tip of her invading cocks.

"Here we go the last one, keep it up, your lord demands it!" Ember instructed, clenching her claws into fists and gritting her teeth as the last egg pushed its way towards Twilight's dicks and began to spread Ember's canal wide. "Ooh, this one feels like the biggest of the clutch!"

Feeling the large shape of the egg trying to force its way through, Twilight knelt down and rammed her tongue back into Ember, earning a howl and small stream of fire shooting from her mouth. Twilight began to instinctively caress the cum-coated thing with her tongue, all the while trying to take note of how Ember's body went to work in expelling the large egg, yet in her horny dragon state, she didn't really take note of the pulsating wall of Ember's oviduct as she wrapped her tongue around the last egg and pulled.

Ember cried out in pain and ecstasy as Twilight helped draw the egg out and, after a long few moments of intense pushing, not to mention the orgasm of her life, the large egg finally popped free and was wrapped in Twilight's tongue, before she released it and it rolled into Twilight's claws. Cum and birthing fluids still dribbling from her pussy, Ember threw head back and lay sprawled out on the floor, utterly relieved as her belly was once more relatively flat, save her dragon-cream filling. Twilight too sat back, her own reproductive organs only just now stopping its second orgasm, nearly-unending squirts of cum squirting all over the pair of them, the nest, and the laid eggs. Then the pony-turned-drake dragon looked at the clutch of cum-covered eggs and carefully placed the fourth down with them.

"You probably don't want to break any of those in here. They may not be fertile, but you'll never get them cleaned up if you do." Ember advised, clearly looking to be in a much better mood now that she'd released her eggs, looking up with a small smile.

"Hahaha, don't worry I'll get rid of them later, may want to study them a little first," Twilight responded, coming down from her own orgasmic high, and Ember rolled her eyes.

"Well, be my guest. I don't care about dud eggs anyway. You could even eat them if you wanted. Some dragonesses eat their infertile eggs. They're a good source of protein." Ember stated, then looked evasively at Twilight. "Hey, and t-t-...I was really kind of worried about being stuck with those inside me forever. Not that I couldn't have found some other drake eventually, just...well, I guess you get the idea."

"Don't worry about it, Ember. Thanks for letting me help you. You really are amazing, all dragons are the way that all of their systems work..." Twilight said, moving over to stand above her splayed dragon lord.

"Yeah, if you say so. I still think nature just forcing me to do stuff like having sex sucks," Ember grumbled.

"What, you saying you didn't like it? That I didn’t pleasure you well enough? I sure counted four orgasms!" Twilight asked with a grin, and Ember blushed hard.

"What!? N-no, I'm not saying that! Oh, stop it! You're way too sexy right now to say stuff like that! This is going to be so weird to think about when you change back, remembering that that little pony princess was once a huge, mighty breeding-drake!" Ember stammered, covering her reddened face with one claw.

Twilight moved one of her talons to rub Ember's cum-filled belly, the bulge that was once taut with eggs now jiggling slightly under her scales.

"Well, you know, Ember, this spell won't wear off for twenty-four hours and you're still pretty sexy. How about I 'help you' a little more?" Twilight lightly teased, "It's fascinating how I'm still hard even after cumming twice!"

"You know if anyone had ever said that to me before, having sex just to have sex...I don't know what I'd do. But you? I don't know...maybe the purple scales must just make you look too much like Spike." Ember stated.

"Oh, is that it? I just look like Spike to you?" Twilight said, faking a hurt expression, even if she'd know from the start who Ember really loved.

"Well, no not exactly, it's just...fine, we're pretty much stuck here a day until my fertile smell goes away anyway so do all you want to me! Can't say I don't want it..." Ember finally relented, crossing her arms and looking away as she blushed harder.

"Of course, my Dragon Lord, I bet there's still a lot more to learn about dragon physiology and anatomy now that my breeding haze is gone... and I'm pretty sure there are some nice spots I can find inside you..." Twilight said as she sank back down towards Ember's tail, "...and who knows, maybe we can have another lesson next year too when you’re full of eggs again."

Ember snarked at that, but as she felt Twilight's tongue go back to work at her puffy, seed-coated lower lips, she instantly relaxed with a blissful sigh.

"Maybe we can, if Spike's still taken...not that I don't want him to be happy, but...well, next time you can come to me, in the Dragon Lands." Ember said through a series of pleasurable moans, "and don't forget that potion you used today!"

All Twilight did was look up from Ember's wet pussy, her muzzle just a soaked as before when she gave her needy dragoness a big, toothy smile of agreement before she once more mounted her.

*******

A short while later, unnoticed by the now once-again-mating dragons, one of the laid eggs’ colors changed from solid cyan to include stripes of the same lavender color as Twilight’s scales, then another gained dots of that color. Before long, all four eggs had Twilight’s coloration on them in one way or another, with a dragon egg being laid and developing both parents’ colors a surefire way of telling that they’d indeed been fertilized by that mating. After all, it had only been two of the four days that Ember told Twilight it would take for her eggs to become infertile. Ember had been too horny, and Twilight too eager to learn, then both were too horny, to remember that Ember’s eggs were still viable for a drake's sperm to claim...as had indeed happened

Both fell asleep after a few more rigorous romps, not knowing until the next morning that Twilight had fertilized her clutch.

Ember was somewhat surprised that she now had a clutch of fertile eggs to care for, even if it wasn’t wholly unexpected by her. She’d been bred while ovulating after all, with everything coming to her now that her mind was clear and she held her and Twilight’s eggs; eggs conceived by two royals. Ember gulped at the thought of having four baby dragons to care for soon, though she knew she likely would have had the same with Spike, given the chance. Her whelps merely had a different sire than planned.

Twilight, who had changed back into a pony while she slept, with growing smaller much less dramatic than larger, would be most fascinated to learn that she was indeed a father the next morning as she too saw; learning that she, a pony mare, was the sire to a clutch of royal dragon whelps as Ember explained the significance of her coloration being on the eggs had. The two-toned eggs with little dragons now growing within.

Ember decided she'd keep two of the eggs cool to become dragonesses, and two warm to become drakes. Two boys, two girls, all somewhat unwanted at first, but now Ember would never let them go.

Nor would Twilight. She swore she'd help care for them however she could, though Ember insisted she had it under control. They were Twilight’s kids too after all, and when they hatched in a month’s time, she would love them as a father should.