Costume Couple

by XenoPony

Rating: mature
Tags: Slice of Life, Porn, My Little Pony: Friendship is Magic, Fetish, Romance, Sex, Thorax, Ember
Length: 9835

Ember gets more than just candy for a treat when Thorax shows her a special kind of Changeling 'trick' on Nightmare Night.

For the first time since becoming friends, both the Dragon Lord Ember and King Thorax of the Changelings have been invited to take part in the age-old pony tradition of Nightmare Night. However, when it's your first time taking part in something, things don't always go to plan...especially when you're not a pony, and even more so when the evening of the event just so happens to be on the first evening of a certain dragon's mating season. In the end, Ember gets more than just candy for a treat when Thorax shows her a special kind of Changeling trick when they're all alone in Princess Twilight's castle.

Featured: 10/31/18

Contains: A dragon in estrus, including mentions of ovulation; a changeling doing changeling things (temporary species swap, as well as casual body part modifications of the changeling), a unique take on changeling genitals and reproductive habits, tentacles/tendril penetration, cloacal/vaginal penetration, pleasurable womb penetration, egg implantation into womb and fertilization (impregnation), internal cumshots, excessive cum, cum inflation, hyper-pregnancy, and one large dragon belly.

Edited and Co-written by: LegionofPony

Published 2018-10-30 18:10:01 UTC
Last updated 2018-10-30 18:10:01 UTC

Nightmare Night To Remember.

"What are you doing, Thorax?" Ember asked as she watched Thorax wiggle around in Twilight's favorite chair, a rather confusing display to the dragoness.

The great room of the crystal castle had been decorated with all manner of spooky things; from ghouls and bedsheet-ghosts to cobwebs, spiders and hanging bats. There were jack 'ol' lanterns, and all those things were things that no self-respecting dragoness like herself would ever find scary. Seriously, Ember didn't understand this silly pony tradition that was held every year. So what if one of their two princesses had turned into some dark monster thing? She knew she could have whooped that monster-pony’s tail no problem.

Who was it again? Nightmareloon…Killestia? She thought, before lifting a claw to her snout. Grr, all these ponies still look the same to me!

"Oh, I loooove this chair, it's so goooood,” Thorax said, the lime-green changeling squirming all over the sofa much like a spastic cat would. “I sit in it every time I'm here."

Ember, the blue-scaled dragoness, huffed. "You know we're not here for that couch, right?” Ember asked with a small growl, “Spike invited us to this Nightmare...” She paused, rotating a claw in the air, "...whatever Night celebration and I don't intend to let him down. Aren't we supposed to get dressed up or something?" Thorax, the king of the changelings, paused his walking on the couch, looking at her curiously.

"I have no idea,” Thorax said in a cheery, clueless tone akin to what Ember usually heard from Pinkie Pie, “Twilight only ever sent me notes about their celebration and history of Hearth's Warming, so this is all new to me too," he gestured to the decorations around him, then shrugged, “I think it’s supposed to be scary, but this celebration is mostly for foals though.”

Ember rolled her eyes. Of all the times they could leave me alone with him...grr. Not to mention the time of year they had to choose for this dumb party thing. Her wings drooped, shoulders hunched as she sat down hard on the pale-blue crystal floor, cooling her burning nethers.

"Well, I thought Spike would have told you something?" Ember asked, and in response he cocked his head, lifting a hoof to his chin.

"Spike did say something about a costume and it being a ‘kiddy holiday’…and lots of candy being involved...but he said he, Twilight and the others would give us time to get ready. They already left to go to Rarity’s boutique-thing, so we'll have to meet them later I guess," he explained, and Ember face-clawed herself, rubbing her temples.

"He did what? Seriously, I have no idea what I'm supposed to do! He said to have a costume, but all I had to bring was this dumb thing," Ember flicked her tail, striking a box at her side and making it topple over to reveal a set of golden armor, the very set she'd worn when first meeting Spike at the Gauntlet of Fire competition.

Thorax shrugged. "Oh, I didn't bring anything at all," he admitted and she stood up, rolling her eyes again.

"Let me guess, you had no notes so you didn't know you needed to? Does somepony need to write everything down for you? You're a king, you're supposed to be responsible!" Ember said, but he looked unsure of her reaction.

"No, not really...I don't need ponies or anycreature to write everything down for me. I figured, well, why dress up as something scary when I can just be something scary," he admitted, then there was a green flash as he went from a large, fuzzy, green changeling to a small, fluffy, innocent-looking white rabbit, “I am a changeling after all,” the bunny said in Thorax’s voice.

"What is that supposed to be? That's not scary, you're supposed to be scary...I think," Ember deadpanned, marching over and peering down at him, one of his long ears twitching.

"Sure it’s scary. I gave it these little fangs, see?" Thorax-Bunny said, lifting one of his lips to show off a long pair of bat-like fangs in the bunny's upper jaw, "This was my brother's idea...it’s not too scary, right?"

Ember huffed again, rolling her eyes. "Oh, I'm totally horrified,” she said sarcastically, “Why not just turn into a bear or whatever? That's scary to these prey-animal ponies.” There was another green flash as Thorax changed back to his normal form.

“Well, I don't want to really scare anypony…” Thorax said, clopping his forehooves together in a nervous gesture, ”Spike said there were a lot of foals out tonight and I don't wanna be mean and scare them."

Ember sighed. Yeah, you and me both. You think I wanna mess this up? I don't know what I'd be without Spike, and definitely, don't want to disappoint him or Twilight. He's the one who gave up being Dragon Lord to me when he gave me the Scepter after earning it himself. Ember thought to herself, not that she'd ever admit to her anxiety aloud, But of course, this dumb pony festival would happen just before the autumn dragon mating season.

Ember imagined what she could be doing instead of sitting here, nervous of failure; the dragons lands now covered in smoke from the snorting, mating dragons releasing bellows of it in their orgasms, an orgy in magma pools with her as the center of attention to a dozen drakes all to herself...she was almost drooling at the thought. Yet you value your friendship so much you're stuck here instead of getting fucked by like five drakes at once. Her mind sniped at her, but she simply shook her head. She wouldn't admit aloud how much she cared about this place, these ponies and the little drake she called her best friend. Say, you are in a room with the only person here who can shapeshift though, hmm? Maybe...

"You? Scare somepony? Ha! You-you're softer than a...a..." Ember looked about, using the first ‘soft’ thing that caught her eye, "Than...than that couch-chair thing you love so much, yeah!" she spat out, then sat down with her tail coiled around her foreclaws. "I'm the one who has to be careful. This is not the best time for me to be out and about."

Thorax cocked his head, edging over towards her. "What do you mean? Are you okay? Is there something wrong? Are you sick?" he asked concernedly.

"I–I'm fine...dragons don't do having anything wrong with them, ever," she huffed, slouching. By the Great Drakes, he's so oblivious, I'm surprised he can't just smell me to get the hint how much I'm needing...attention.

"If you say so, but…I mean, I'm no expert given how new friendship is to us changelings, but," Thorax said, pressing a forehoof to his chest, "I think just saying to a friend that you ‘don't do wrong’ when you feel like there's something actually wrong isn't a good way to go about it." He forced a smile.

Her thoughts chimed in. Grr, why does his dumb, dorky face have to be like that? It's almost cute...wait, you said dragons didn't do cute! ARGH! Ember couldn't help but admit that Thorax wasn't the worst-looking creature, at least for a non-dragon.

Regardless of her thoughts, Ember grumbled, arms crossed. "What would you know? I thought you ‘lings were just as new to this whole friendship thing as I was?" she asked, and he sat down next to her, looking a little apprehensive.

"Well, yeah, I just said we were. I mean, I kind-of got to know about it way before the others did thanks to Spike, but I don't like to talk about how I used to be treated by other changelings," Thorax confessed, slumping.

Oh, he doesn't, does he? Doesn't he trust me? Big softy, why I...you'd what? Don't lie, you're liking that green fluff aren't you? Ember ducked her head as her mind crashed and red started to pool in her cheeks. Stupid situation, stupid time of the year! One stimulating brush of her tail and a slit sweep on the carpet later, however, and she almost shot up to the ceiling.

"D–don't worry, I was pretty much the first dragon to take friendship on too, except Spike I guess, but the advice you gave me the first day we met made it easier," she confessed, stamping a rear claw on her tail to stop it from swishing.

Thorax chuckled. "Haha, yeah same goes for you. You helped me get everyling, except for my brother, to agree to give sharing love and friendship among ourselves a chance instead of having to steal it. Even Pharynx came around in time though," Thorax told her, smiling.

"Have you ever actually turned into a bear on them?" Ember asked with a smirk, referencing her earlier costume suggestion, nudging his side with a wing.

"Maybe once or twice, when I was by myself. I even considered turning into a big scary dragon too for this event, but I think I’d scare a lot of the foals," Thorax chuckled, yet at his latter words, Ember went stiff, blushing again at the thought.

Oh, I'd love to see him as a big, handsome dragon, wouldn't I? A big strong drake, mmm. Admit it, Ember, you're all tough, but you have something for this dork and his sexy, exotic body. Ember coughed, covering her face with a wing as she felt her face flush with heat.

"Are you sure you're okay, Ember? Your scales are going all red. Are they supposed to do that?" Thorax asked, peering over the dragoness’ wings.

Ember’s eyes went wide as she realized she was blushing hotly. "What? Yes...that's...I–I'm fine! Totally okay! Yep!" she stammered as she scooted away from him in a flash, instantly regretting the sensation of rubbing between her legs rubbing as she shuffled along the floor. Wincing at the stimulation of her nether on the smooth stone and slicking it with her liquid arousal.

Don't think about how good it feels to rub your cooch on something, don't, don't. Her tongue lulled out as she took a sharp breath in, before, in a moment of pure genius, she quickly grabbed and stuck her helmet on her head to cover the blush. Of course, there were some things the head armor couldn’t hide, including the trail of feminine arousal she’d left on the floor, and her aroused scent permeating the room with her hormonal mate-calling card.

"Erm, what's this?" Thorax asked, jabbing a hoof at a slightly damp trail on the floor, making Ember wince, the fluids sticking to his hoof. The dragon lord's heart skipped a beat as she straightened the helmet and fought to stop her wings from springing out.

"T–that's nothing, just a dragoness thing!" Ember said as she panicked, darting back over to cover her wet trail with a rug.

"Oh, a dragoness thing, so not just a dragon thing?" Thorax pressed, then sniffed his fluid-covered hoof, "It smells kinda...funny? Kinda like you, but…but different?" His face scrunched as he recoiled from the powerful scent.

Oh by all the talons and scales in the dragon-flight, he's so clueless! Ember forced a smile and he smiled back, albeit awkwardly. That look he gave her was the gem that broke the dragon's wings. Grr, what is wrong with me! He shouldn’t be this sexy when he’s acting like a total dork!

Ember sighed. "Look, Thorax, do you have...you know, girl changelings back at the hive?" she asked, what was an obvious ‘yes’ answer to her, yet Thorax went from adorable to perplexed.

"It’s...kinda complicated," Thorax said, rubbing one foreleg with the opposite hoof, “We have changelings in the hive who prefer to be called a girl or female, sure, but we don't really have set-at-birth genders like ponies or dragons do. We can change genders at will, just like we can change appearances.” Ember’s eyes widened, with Thorax continuing, “Any changeling can produce eggs if they want to, or sperm to fertilize another’s eggs, though it was the queen who is the main breeder in the hive and can make the most eggs at once. She can make hundreds at once, while most drones will only make two to six and most infiltrators can produce up to a dozen, while higher-ranking breeders can make several dozen. I thought everypony knew that?" he elaborated, “Now that we don’t have a queen after we banished Chrysalis, most of the hive is just breeding with each other to get our numbers back up.”

Ember pressed her claw to his muzzle to stop the stream of babble. She knew all she needed to for now.

"Okay, okay, I get it. So you're what, a guy and a girl?" she asked. Oh, I didn’t know my tail swung both ways. You learn something about yourself every day, I guess.

Thorax shrugged. "Well, I always considered myself a male, but ‘downstairs’ I can do either. You know, because I can just change into a mare or dragons or whatever? Or a female drone, and I can change my reproductive organs too."

Okay, well given how different we are biologically, my condition may not be so easy to explain. Ember pressed a claw to her face, desperately trying to come up with a way to explain how things worked with dragons.

"So, you’re telling me that you changelings don't...you know..." Ember asked as she mashed her foreclaws together suggestively. "...have sex?"

Much to her surprise, Thorax burst out laughing. She was caught between the urge to jump back in embarrassment or slap him. Seriously, he thinks this is funny? What kind of messed-up culture do they have?

The changeling king wiped a tear from his eye. "Oh, I know all about sex, with ponies, dragons and changelings. We all took entire mandatory classes on love and lust, since there was no better way to drain love than through romance and sex, especially strong during an estrus...though I was never really into that. I always thought that If I loved someone, I'd love them, not just drain them of emotion."

At that, Ember's sudden urges to fight or flight faded as her heart fluttered. Curses, why is that so sweet? Dragons don't do sweet!

"Sooo, what about the whole downstairs business? Do you have an ‘in’, or an ‘out’?" Ember asked, and Thorax chuckled.

"Wow, you're more open about talking about sex than a pony,” Thorax said, grinning dumbly. “Back in the hive, we'd talk about sex openly all the time. It's kinda odd that ponies don't." He nodded to the door of the chamber. "To answer you, all changelings have an ovipositor naturally. It can transfer both eggs and sperm, and, with a few little internal changes by the changeling, can even be pushed inside to act as a vagina if we’re courting a stallion while disguised as a mare, or a drake as a dragoness.”

Thorax paused, before sighing, apparently somewhat uneasy about this next part. “Someponies get kinda freaked out by this part, but we use it to put our eggs into someling, or somepony, else because we need somepony to carry our eggs for us, unless there's a queen to do all the mating and incubating, and to fertilize them too generally. I can fertilize my own eggs though, and have nymphs with anypony, or ‘ling, or...dragon...with an organ or tract to keep them for their one-month gestation and enough love to sustain them."

Damn it, why does that make under my tail tingle? The thought of getting eggs laid inside me shouldn’t turn me on this much! Ember edged a little closer to Thorax, careful not to let the floor tickle her aroused nethers too much.

"So when the ‘nymphs’ are ready to come out they'll, what, eat their way out or something?" Ember asked, and now it was Thorax’s turn to look horrified. Oh, now you have gone and done it! You just had to open you big, bloodthirsty mouth didn't you!

"What, no! That's horrible!" Thorax stuck out his tongue in disgust, wincing. "Changeling births are not like that. The nymphs feed off of the love and warmth of the host, and then they are delivered naturally much like foals or eggs would be...out the same hole they went in. Most hosts are in a special incubation cocoon when it happens so don't feel a thing when the eggs are passed out of them, but I have heard that the delivery is pretty nice feeling from some of the ponies and changelings that have carried before."

And that does not make me feel any less wet under the tail, thanks!

"Okay, sorry...it's just dragons aren't usually all nice and soft about stuff. We try to be tough and strong about everything." Ember sighed, and that was when Thorax wrapped a foreleg around her.

By the Great Drakes, he's so soft and fluffy...it's so nice...grr, stop it, stop it, brain!

"Awww, it's okay. I know you're not mean. I'm glad you're curious about we changelings, nopony else seems to care. Well, maybe Twilight does, but she's just like that," Thorax assured Ember.

As stiff as she was, Ember shrugged, then shifted Thorax off of her. "Yeah well, that's kinda my issue. You see..." she began then trailed off.

Are you really going to tell him this? She grit her teeth before finally blurting it all out.

"It's almost dragon mating season right now, and I'm stuck here horny as hell and I really, really don't want to ruin this pony thing so I don't know what to do!"

Thorax leaned back, face blank for a second, then his eyes narrowed as he cocked his head. "Mating season? Wait...you mean like a snuggle season?" he asked.

"Like what?" Ember deadpanned, looking at him sharply.

Thorax shook his head, waving a hoof. "Never mind, it's something my brother talked about ponies having. I think he was kidding though. So you're saying what, you have to...snuggle?"

Ember bit her bottom lip. "Well, I have to do more than snuggle if I wanna get this heat out from under my tail...look, how can you have a sex class and not see that I need rutting!" she finally exploded.

Thorax's eyes went wide as the realization hit the oblivious changeling like a train. "Oooh, so dragons have estruses like ponies do. That's interesting, they didn’t teach us about this in those classes. I see what you were trying to say now." He offered a weak smile.

Ember dragged a claw over her face. "Yeah, but we just call it ‘being with eggs’. I need a dragon...or someone or something to, just...I don't wanna feel like this anymore!"

Ember’s head drooped as Thorax stepped over and placed a hoof on her shoulder. "Well, I guess you did help me before and you're a friend, so you think I can help?"

"You dolt, that's what I've been trying to ask for the past half hour! Plus, you're not half-bad looking." She kneaded her tail with a foreclaw. "You wanna get to...know each other a little better?"

"You mean have sex? Right here in Twilight's living room?" Thorax asked, and she wrapped a claw around his muzzle to shut him up, her blushing hotly.

"Yes, Captain Be-Blunt-About-It!" Ember shot back, then relaxed a little, shaking off her helmet, and laying back with her legs spread instantly, in what she thought was a sexy pose. "So, you like what you see?"

Thorax licked his lips, looking at what she exposed to him. Thorax noticed that Ember's genital slit looked much like his own did; a simple parting of horizontal belly scales between her back legs that revealed, in her case, the entrance to her oviduct. He noticed that her slit seemed slightly swollen open and was leaking a thick, milky-clear fluid, undoubtedly a reaction to having eggs in her ready to be fertilized. He could also smell a very intoxicating aroma coming from her after she'd lifted her tail, having sensed it before as he'd hugged her, but finding it so much stronger now.

Ember's glistening, deep-blue genital slit was about eight inches long from edge to edge, with him finding that it had the general look of a mare's vagina, except that it was horizontal and coming from between two scale plates instead of vertical and being made of skin. He also saw, as she used her claws to spread herself open rather lewdly for him, that the concave inner portion resembled the actual vaginal entrance of a mare only much larger; an elongated, eye-shaped slit that looked to lead much deeper into her oviduct and womb, and undoubtedly did.

He saw that the slit between her belly-scales now had in its middle gaping, deep-blue hole, able to see her oviduct squeezing on itself in an almost welcoming way, him realizing that that motion was to draw a drake's penis into her easily. Beneath the long slit but still within her cloaca was another, smaller hole beneath the large, pulsating one that was her oviduct, Thorax deducing that was her anus.

"By the hives, I thought I was over love...it's pretty strongly coming off of you. So...you have genuine feelings of affection towards me, don't you?" Thorax asked after recovering from the rather sexy sight in front of him.

"Thorax, I'm sitting here with my pussy almost in your face, what do you think?" she asked, flicking at her wet folds with her tail. She felt some self-consciousness come over her, shifting around with nervous energy, “So...what do you think about my pussy?”

“It looks...nice. It's different than both a changeling’s and pony’s, but I think it looks really pretty. It's a pretty blue.”

Ember felt a twinge in her gut as Thorax said a part of her was pretty, before giving a huff to save face. “Gee, thanks. Gotta have sex with a bug-horse just to stop the burning.” Instantly, she regretted her words as she saw Thorax ears fold back sadly. “No, wait...I didn't…”

Thorax sighed, then looked up at her with a forced smile. "No, its fine, I get it. Not everypony will find us changelings sexy, and that's okay I guess. I still want to help you though…” Thorax said as he stood, his horn glowing, “Sooo, you want me to have sex with you like...this instead?" There was a green flash and suddenly a large, strong, deep-blue-scaled dragon appeared in his place, his belly scales a lighter blue like Ember. Black, curled horns like Ember’s were at the sides of his head, muscles bulging under his scales. For Ember, it was a wet dream come true, not to mention a perfect sire to fertilize her clutch.

Ember licked her lips, heart pounding as she studied every sharp detail of the draconic form. From his broad shoulders, strong wings, and defined rear, to that distinctive tapered pink draconian cockl her body craved what hung from his genital slit; long, thick, able to plumb the very depths of her womb and spurt on her eggs directly. It was the most perfect form of a dragon stud in the whole world to her. She had no idea how he could know exactly what her dream dragon looked like, but Thorax apparently did. But as she looked at him, the fake dragon him, her heart did not flutter in the same way as when he looked like himself.

Thorax advanced like a prowling predator, thick dragon cock hanging beneath his belly, fittingly scary for a night of nightmares for any prey species but unbelievably sexy to Ember. Despite her instincts screaming ‘YES’ to the studly drake, Ember lifted a claw to halt him, his face twisting to a confused expression.

"Thorax, wait. You...you should just go back to normal," she suggested, and all at once the strong, confident expression of the dragon imitation’s face turned skeptical.

Funny, Thorax’s goofy expression on the face of such a strong dragon. She thought as the Thorax dragon cocked his head, then returned to his natural form in a green flash.

“I thought you wanted a drake to help you? A drake to fertilize your eggs?” Thorax asked, cocking his head.

"Yeah, but I'm only lusting after a dragon, it's the same every year. But you...I can't believe I'm saying this but you’re sexier than even the biggest, strongest drake, you sweet dork, because you actually care about me instead of yourself." she admitted, blushing hard.

This time, however, she was not the only one to have a blush, Thorax’s green face going bright red too. "You’re serious? You really like me...like that?" He pressed a hoof to his chest. "Nopony has ever said that about my true form before."

"Yeah, well, I’m not a pony, and I know what I like. Now get over here and fuck me you sexy green bug, I still need to shake off this heat," Ember retorted, flicking at her wet folds with her tail again, slowly rubbing the tip between her slick horizontal slit.

Thorax practically beamed. "Hmm, so this must be what being loved feels like." He wiggled himself a little then edged forwards. "Don't worry I'll try to remember all I can about sex class to make this as nice as possible, for both of us" he assured her.

Ember huffed, his sheer adorableness forcing her to look away as she went redder than ever. "Sure, just get on with it, all your talking is just making me wetter!"

Thorax grinned. "Oh, how about we start small then. Not sure about dragons, but ponies really love it if they're right on the edge when you put your penis in the first time. They usually lick each other to get started..." The look on his dumb face was enough to set her heart on fire.

Usually, Ember wanted sex to be done as fast as she could. Some random drake’s cock would go in an out of her a few times, he'd cum in her, they'd both get an orgasm, and then her heat was gone. She’d take some herbs before to prevent her eggs from getting fertilized, then she’d lay the useless eggs some time later. With Thorax though, there was no doubt in her mind that she wanted to have it last as long as possible with him. She thrust her midsection up towards his face, wet folds just inches from his fuzzy muzzle.

"Okay, just shut up and get licking then, all this talking is too much right now!" she chastised, blushing harder than ever as he licked his lips. “I need action!”

Thorax bowed his head, grinning. "Oh, of course."

Grr, why did he suddenly get so much more handsome when I'm turned on! Ember mentally growled, moments before he began his fine tongue work and the sensations of need changed to relief. At first, it was like the lightest tickle between her legs, he moved up and down her inner thighs, taking care to lick each and every scale like some kind of expert. Ooooo, that's so good!

To say that her pussy had become sensitive over the past few days was an understatement; the puffy flesh had been on fire for hours, so the moment Thorax's sharp tongue began to caress along her outer edges she shuddered. It was like the thinness of that muscular organ was just right to stimulate maximum pleasure in her, rough but not harsh like a drake’s fumbling, clueless licks just to get her wet enough to ram his cock into her. It was similar to the tongue of a dragon yet not as long, and with it Thorax moved up and down the scales around her pussy with the precision of a master, ticking the edges before sinking into her core slightly. She moaned as he did, her rock-crushingly hard and sharp claws leaving trails gouged in the crystal floor as he edged her closer, licking deeply and constantly into her gaping pussy-hole.

"D–damn...I can tell you took those classes…mrrrph..." Ember moaned out shamelessly, then winced as his forked tongue poked at her clit, dancing loops and figure-eights around it before he started to suck. "You -t-tease, s-stop it..." she panted, pressing a claw to the top of his head, “...f-fuck me already!”

Of course, stopping was the last thing she wanted him to do, and right now she was pretty sure he knew that, but even still stopped when she said stop. As he lifted his head from her glistening crotch, muzzle wet as he grinned, he swallowed his mouthful of her profuse fluids down. With his purple eyes lidded and ears laid back, looking quite relaxed, he was the very look of a satisfied, love-filled Changeling. This satisfaction made him coo a sound that Ember felt made her heart pound that much faster at just how adorable it sounded.

"Oh, but I didn’t want to stop! You taste so good! It kinda tastes like pumpkin actually," Thorax said, giggling, acting rather love-drunk in the way Changelings would get if they absorbed too much love at once. "That’s kinda funny given the time of year, pumpkins being harvested and all. Not to mention I have never felt so strong of a love like this directed at me. I didn't know a dragon could have such a love-filled heart!" Thorax poked a hoof at her lower tummy, making her squirm.

"That's not where my heart is, bug-boy," Ember teased back, squeezing his neck in her thighs gently and wrapping her tail around his midsection. "That's where my eggs are, and they’re waiting for your cum!”

Thorax huffed, growing redder. "Would be where one of them was if you were a changeling," he said as he poked her again, earning another squirm from the very sexually-sensitive dragoness, "though, I do know where you want a certain part of this changeling right now, and I’ll only too gladly give you it again."

Thorax then pointed to her wet pussy, poking a hoof at her outermost fold, grinning as he rubbed up and down the concave. Ember shuddered, before he dove back into her, muzzle parting her labia and nuzzling deep. His tongue danced around a little more, drawing along her slick inner walls in rapid circles before it once again pulled out to find her love button and press down. His tongue was now like some kind of sucker similar to an octopus’s, as if he shifted its form just to pleasure her better. The dragoness quivered, her hips shifting down towards him instinctively as she stretched her wings and rubbed the back of his neck to push him down into her pussy again, thankful his tongue morphed back to its thin, lovely natural form.

"Great t-tails, this is...grrr, I have never felt so good w-with just a t-tongue before!" Ember declared, her hips thrusting at him on instinct, him reacting by using a hoof to rub her pleasure button. Thorax then nudged her claws away, lifting his wet muzzle just enough to glance up at her as he felt her inner contractions growing stronger and more rhythmic, leaving her irritatingly close to her first climax. The pressure was like bubbling magma waiting to erupt from a volcano...and he was just smiling at her now. Damn it, why couldn't he just make me cum!

"Are you able to take all of my…” Thorax asked, rubbing a hoof down between his stifles where a stallion’s sheath or dragon’s genital slit would be, clearly trying to coax his member out. “I mean, it’s pretty big, but you dragons are tough right? Usually, we had to use mind manipulation or masking spells to cover our genitals during sex so it feels natural to a host, but do you want the whole thing, just like it is?" he asked, eyes lidded as he crept over her and licked up along her stomach.

Despite her pleasure and bright red face, Ember gave him a flat look that just asked ‘are you kidding me?’. "What do you think?" She rubbed his cheeks. "I'll take all you have, as long as you think you can take all of me!"

Thorax smirked. "Oh, I can feel the love pouring out of you! Love turns changelings on like super hard. I think I can take anything from you," he said as he poked her muzzle, forcing her eyes to cross. "You wanna turn around for me now? Show me just what I’ll be taking?"

Ember huffed smoke in his face at his suggestion, making Thorax cough a bit. "Oh no, we’re doing this dragon-style, with me on my back. I'm going to get fucked by you while looking you right in the eyes,” She looked into his eyes as she said that, feeling another twinge in her chest as she did. “I kinda like your eyes, they’re pretty. They look like amethyst, and I love the taste of amethyst."

Thorax’s, face a little blackened by soot from Ember’s smoke, coughed again. "Sooo, you like sex hard or soft?”

“Fuck me hard. Fuck me like you’d fuck a Changeling queen in breeding season!”

“So, like really hard and about five times, my little blue dragonfly?" Thorax asked, rubbing her belly, knowing that right there was where her tiny eggs eagerly awaited their male counterpart to fertilize them.

Ember heard the nickname and almost wanted to tell him to never call her it again, but for some reason she found it was kinda cute, Thorax calling her that. "You tell anyone else I let you call me that and I liked it, and I'll do more than rut you..." she responded in a growl, then ran her claws along each of his sides, making his wings buzz at the sensations. "Now, why don't you act on those words and..."

Before Ember could finish, she felt something hard and pointed press against her pussy, then the odd sensation of a pair of worm-like tendrils snaking just into her folds. The two tentacles pulsed with life as they split, one sliding into her passage, the other moving to her clit and shifting as his tongue had done. Meanwhile, his thin, hard cock lingered at her entrance, its strange spiney texture – kind of like a dragon’s, spined cock, but with much finer spines – tickling her outer labia as his tendrils warmed her up.

Ember reeled at the sensations of the wriggling tendril penetrating her ever so slowly deeper and deeper, the other rubbing circles on her clit, her claws clutching at air as she gasped, never feeling anything like this before.

"What's wrong, Ember, changeling got your tongue?" Thorax purred as his blue dragonfly took a shallow breath. “Or are you just enjoying my tendrils that much?”
.
Ember’s wide red eyes met his deep purple spheres as she blushed hard. "W-what were those...arrg, t-they're doing things to me...I...I’m…” Ember stammered out as she felt the tendrils’ spines so deliciously poking into her vaginal walls as she squeezed down, not hurting at all but feeling instead like hundreds of tiny pinpricks of pleasure all at once, all while being filled to the core now by the thick, pulsing growth. “I...don't think I've felt like this...oooh-my-Drakes, e-ever!" Ember forced out her words as his tendrils did all they could to pleasure her, the clenches Thorax could feel on them proving they were doing well.

"Oh, my tendrils are just there to stimulate a host. You see, if we want the eggs to get in easily, then we need them to be good and wet," he assured her, nibbling at her chest scales, “besides, the pleasure of multiple orgasms originally paralyzed a host so we could implant them without resistance.”

Ember‘s hips jerked up at the feelings in her pussy; those spines were like pure bliss, a thousand dragon tongues all eating her out at once. "Multiple...I do...want that...I...I-I f-feel like...grr, this is so good! I want everything from you, okay! Eggs, cum, I don’t care. Give me all you can, I want to feel everything you can give me!"

Thorax smiled, rubbing noses with her at her total acceptance. "If that's what you really want, I’ll gladly give you my nymphs. Oh, I've not ovulated into a host like this in ages! Don't worry, I'll take perfect care of you my little Dragonfly after I lay my eggs in you," he assured her, and for a second she genuinely smiled, a warmth in her chest, along with the fire smoldering down below.

"I'll hold you to that, now how about you get on with it!” Ember said, in such a breeding haze and so utterly needing to cum she’d agree to almost anything to get satisfaction, “Mmm, yeah, knock me up! I'm sure a little brood will get rid of this heat in no time!"

As she felt his thin tip pressing to her inner hole, Ember responded by thrusting up until his thin cock slipped in along with the tendril still fucking her, somewhat disappointed by losing her companion of the last five minutes, but groaning to the ceiling when she felt his cock swell thicker three-fold upon penetrating her.

It was Thorax's turn to let out a gasp as he felt his stiff rod was forced inside of Ember, feeling it swelling up to make her inner walls stretch to accommodate her, the thin nub-like spines along its length harmlessly pushing into her inner walls. His face tensed into a grimace as he felt her rippling insides along the length of his spined cock, the motion of each spine perceived by his sensitive cock.

Ember, on the other hoof, was met by a new sensation of pure bliss as the many spines rubbed the inside of her pussy, stimulating every nerve ending his cock reached as she grit her teeth and clutched Thorax's shoulders, cumming on just the first thrust in.

"Aaaaah! H-how, y-you got me c-cumming so fast...I-I've never...l-like this before!" Ember cried out as the last shreds of her restraint were ripped away, feeling her whole body spasming beneath Thorax, her egg-tunnel kneading and kneading as she orgasmed.

"Ah, you’re so h-hot inside…” Thorax stammered, feeling like he’d just stuck his dick into a fleshy hot-spring crevasse. “...I never did pass any of those s-sex classes because I r-refused to l-lay eggs into an unw-willing pony...but that's not to say I didn't learn a whole lot. Hmmm...you're just as easy to please as any pony," he purred, pressing a hoof to her chest as he reared up, dragging his cock partially out.

Ember gasped again at the sensation of his huge cock moving inside of her, his hundreds of spines scraping every inch of her inside, yet through all of the blissful waves of her third orgasm, she could do nothing other than groan in response. "Arrr, you stupid changelings and y-your...f-fucking s-spined cocks! Oooooh...I… it-this isn't f–faaaair!"

Thorax felt multiple somethings shifting inside his lower torso, knowing that sensation from the last time he’d done this, the constant kneading of her spasming canal on his ovipositor making his brain set to work on impregnating his host. "Well, I hope now you're ready for the real show...I–I'm starting...my eggs...I can feel it...oooh, can't stop now," Thorax groaned as he hunched over and thrust deeper into her.

His cock was rammed deep into her folds, descending her vagina until the thin tip tickled the very door of her womb. His cock had thickened even more in reaction to penetrating her so deeply, the whole thing plugging her whole passage uptight as its tip met the doors of her uterus. Like a grateful guest they knocked upon the door of her uterus before carefully prying her open, her womb welcomed the tip into her estrus-loosened cervix so that his cock’s tip could peek inside.

Ember gasped at the sensation, only one drake ever being able to penetrate her this deeply before, her claws grabbing his waist as he smirked while she was thrown into yet another orgasmic fit. His cock's tip sank into her ready womb and began to bloom, the tip swelling up like a huge bulb and blossoming like a flower, parting her cervix wide as the tentacles began to seep out a numbing substance.

"W–what is that…” Ember asked as she came off the highest part of her orgasm, entering into a constant state of lesser orgasm instead as she felt a warm spurting inside her, “Ooooh, how am I still c-cumming?! What are you doing to me!?" Ember asked, hardly able to open her eye as she squirmed.

"That's just an aphrodisiac and numbing agent, though your cervix parted way easier than a pony’s would, and it seemingly didn’t hurt you at all. Since I’m sure you’re wondering, the tip swelled up big to keep everything inside of your womb, so it won’t get out of your cervix.” Thorax said as more his lower abdomen shifted, his ovary pumping out egg after egg, storing them in a sack that led to his ovipositor, before feeling one sliding past the retaining sphincter and into the egg-laying tube.

Thorax groaned as he felt the pleasurable contractions along his ovipositor moving the egg along, everything completely out of his control as another popped past the sphincter, then another. “A-Aaaah! I’m laying! T-This whole thing is instinctual now. O-once I’m in your womb, I–I can't stop...urg, I can’t stop now that I’m l-locked in your womb until they’re all out! J-just lay back and enjoy it! T-Take my eggs!" Thorax groaned, wincing in pleasure as he fruitlessly thrust again, knowing the numbing sensation would dull any pain Ember may feel.

"Arrrgh, that thing you call a cock is so big...I can feel it...something inside it’s...moving!" Ember exclaimed, looking down as she felt the highest spikes of her pleasure washing through her as she hit her fifth orgasm, to see a rod-like bulge in her belly with smaller rounded bulges moving upwards.

"T–that's because...i–it's not...I don't have a ‘cock’, I told you it's an ovipositor!" Thorax stammered, feeling more and more eggs moving through his ovipositor and her passage, feeling her constant orgasmic contractions practically sucking the eggs out of him.

Ember meanwhile grasped his forelimbs in her claws just to keep her sanity in this never-ending orgasm chain, looking into his eyes. "Ooooh, they’re so deep inside me...I think they’re at my e-egg-sphincter! Ooooh..." Ember groaned out, feeling a pressure deep inside her, before just like that there was a shift in her passage, something inside her being forced ludicrously wide.

Thorax felt the wide tip of his ovipositor began to pulse, swelling up huge as it split like the petals of a flower, muscles rippling along its length in powerful undulations as eggs after eggs moved through him and into her. He felt his ovipositor throbbing as the whole thing's length contracted hard one last time, him shuddering as he felt a small, round egg being expelled by the inner ring in the center of the ‘petals’, the flexible, jelly-bean-sized egg forced out of Thorax and down the tube, swiftly being deposited in her ready womb. There came a blast of incubating fluid, meant to help facilitate the sperm meeting the eggs and to help nourish them while they developed. Thorax gasped as a mini-orgasm took him, him panting as Ember grit her teeth.

Ember meanwhile felt but a sting of pain as she watched the larger bulge in her enter her womb itself, instantly being followed by a vast wave of orgasmic contractions in Ember's fathoms to welcome its new addition deeper. To her surprise, the undulations of Thorax’s ovipositor seemed to slow down, her orgasm passing as Thorax seemingly was done.

"W–what that it? A-after all that talk, all I get is o-one measly egg!?" Ember teased, nuzzling his muzzle. The exhausted changeling smiled back, cheeks red as he nuzzled back.

"Oh no...that...I think my body’s taking a b-break after that first one...ooooh-never-mind! Here they come!" Thorax said, but his words were cut off as another egg rolled from inside him, bulging the length of his ovipositor until it blasted out and came to sit with its sibling in Ember’s core. Thorax panted, each egg that excited him bringing a mini-orgasm for him, feeling bliss as Ember thrust back against him, her gladly taking the eggs and the following fluid.

"They...they're not too different from dragons eggs...oooh, I've been gravid once before, this is nothing!" Ember boasted, even as another egg was forced into her, then another and another until she could feel them pushing at the walls of her swelling womb, giving her the rather pleasant stretching sensation of being gravid once more.

"Well, I have no idea about dragon eggs, but I heard that these Changeling eggs can be quite the bellyful when they start to grow," Thorax replied as his head rolled back, a constant stream of eggs disgorged in rapid succession after the first few.

"Oh, my eggs were like rocks grinding around in there, all ready to become little whelps. N-never got them fertilized so just...h-had, to lay, ooooh," Ember responded, moaning as a blast of warm fluid joined the eggs.

"Well, changeling eggs are all soft, that's why they need protection and love from a host...mmm-and I can think of...aaah….no better carrier f-for my children!" Thorax stammered back, feeling another contraction that deposited three more eggs in rapid succession, before at least, Thorax felt his egg-sack was nearly empty.

"Urg...I think...I think..." Thorax's words were cut off as another blast of eggs was forced into Ember’s swelling womb. “...yep, that’s all the eggs. Whew, that was a lot.”

Ember squirmed, then felt something change about the shape of Thorax’s ovipositor, it growing harder and changing shape, feeling much like a penis now, long and thick again. “Now what?!” Ember asked in alarm, feeling as Thorax started humping again.

Thorax slumped as his body formed a penis and internal testes, his female gonads morphing to male anatomy in an instant, and with it the urge to thrust himself to completion, humping hard as he felt his tip swelling up again, his male climax rapidly approaching as he sensed the unfertilized eggs gently squeezing his tip.

"Oh, yep here comes the s-sperm...oooh, I'm cumming again!" Thorax groaned a few rough humps later, his tip swollen up nearly as large as the ovipositor’s had.

"I–I can feel, just do it, come on, give it to me! I'm ready!" Ember howled as Thorax's cockhead swelled immensely in size, locking itself into her womb too, forcing her whole egg-stuffed midsection to swell more as it grew like a corked bottle.

For a moment Ember was concerned she might literally explode, or that he may just explode as his red face contorted and he grit his teeth along with her. Eyes sealed, she leaned forward and pressed her muzzle to his on reflex, claws wrapped around the back of his head as she kissed him deeply. Just like that, his cock throbbed hard as the pressure blew, and there was a blast of warm, sticky, baby-making batter forced into her egg-filled oven.

“C-CUMMING!” Thorax announced, and all of the tension in his body seemed to pause for just a second as their lips met and their tongues danced, then Thorax shuddered violently as the flared tip of his rod exploded in blast after blast of hot bug-cum, intense pleasure washing through him as well as he ejaculated, getting his first full orgasm.

That instinctive feeling of cum filling her fertile body, and the pulsations of something long and hard in her pussy, triggered another orgasm for Ember, making her let out a cry of pleasure as she milked every glob of semen from him.

Each surge of virile semen from him made the two of them grunt, the force of his gyrating hips rocking Ember to the very core of her bloated body, him doing his best to coat and fertilize all the eggs he’d just placed within her with his thick cum.

Ember gasped into Thorax’s muzzle and him into hers as her belly swelled and his cock pumped his load into her, her finding it felt incredibly sticky and as thick as maple syrup. There was no comparing the sensation to anything else as she felt warmer than ever and found her heat more tended to than any dragon’s minute-long humping could offer her. Blast after blast of hot bug-cum filled her aching womb as it stretched taut to accept it all, before what of his cum couldn’t fit got past his swollen flare dribbled out and he opened his eyes to meet hers.

"I-I think you got me more than knocked up," Ember cooed as she nuzzled Thorax’s lips, glancing down at her very swollen belly, "I feel like I'm about to burst from all the cum and eggs you put in me,"

"Hehe, yeah...if you were a pony I'd imagine you'd be even bigger, given how much smaller they are than you dragons," Thorax said, leaning back and straddling her again as a trickle of fluid dribbled from their locked genitals, knowing he’d be locked into her cervix until his body was sure all the eggs were fertilized. He patted her belly and the jelly-like mass jiggled under her sapphire scales. "Hey little guys, you be good to your new mommy okay?"

As they spoke, Thorax’s sperm easily swam through the incubation fluid of the eggs, each eventually being fertilized as his swollen flare remained locked inside her cervix, keeping everything inside her womb and ensuring conception would happen.

After a few more minutes, his body instinctively sensing the successful breeding, Thorax’s flare's swelling went down and he slid out of her, allowing her cervix to seal with the resin inside the semen, Ember’s uterus now sealed until she went into labor within a couple of weeks. He then looked down at her massive, glowing-green belly, the glowing assuring him most of the eggs were now fertile, little nymphs growing inside them.

Ember smiled, gripping her belly as an odd, warm glowing sensation filled her womb. The warm, jelly-like mass started to get hard like the pregnant womb of a pony, and they looked down to see a soft, green glow under her scales. "Okay, now that feels odd," she mused, the resin around the eggs hardening to seal them inside with the nourishing incubation fluid and semen.

"Hehe, you're such a dork," Ember giggled as she sat up.. "Whoa! Okay, this is going to take some getting used to," she exclaimed as she wobbled atop him, nearly falling on her face from the extra weight in her lower belly, Lucky for her, his wings wrapped around her, stopping her fall as he then caught her in his forehooves.

"Yeah, they’ll grow pretty quickly, but I guess you can take it, being a big tough dragoness and all," Thorax explained, leaning back with his forehooves behind his head as he rode his afterglow, “That glow means most of the eggs are fertilized now, so in a month you’ll be having our kids!”

Dropping onto all fours. Ember wobbled over. "You know this is going to be really hard to hide under my armor," she frowned, claws on her hips. “Thanks a lot, jerk. I’m fat now!”

Thorax blinked. "Wow, mood swings already? You did take fast," Thorax said as he rubbed her belly, it feeling almost solid beneath his hoof. "Don't worry, I'm pretty sure we can just explain what we did; that I mated you and filled you with eggs and sperm? Oh, you know, pretend it's a costume... We can be a costumed couple!"

Ember bit her bottom lip, scratching the back of her neck. "Yeah, wouldn't that be a story to freak them out. Haha, prude ponies," she laughed, plopping down next to him and snuggling to his side.

Ember rubbed her belly with a claw, still almost unable to believe what’d happened. Here she was, pregnant with a Changeling’s brood, and she was happy about it.

"...or we could just tell them you eat a whole bunch of candy?" Thorax offered Ember resting her claw next to his hoof on her pregnant womb. Her belly gurgled happily, giving off a few tingling twitches and shudders as it rumbled. I swear, it feels like they're moving already! She thought, not used to eggs that squirm so much. Little did she know, the eggs had hatched already, tiny little nymphs already swimming around in the nutrient-rich fluid cocktail within her womb.

"Yeah, I like that idea. I bet no one would ever try and beat me at a candy-eating contest if that's what they think this is. Besides, dragons don't do losing contests," Ember boasted, nuzzling her new mate once more.

"Yay! Seems like a good idea then...you know, we should come to this Nightmare Night thing more often," Thorax sighed as he nuzzled his ‘blue dragonfly’ back. "So, you wanna go out and meet the others, or do dragons not do that?"

"Haha, very funny, but no, I wanna stay with you for a while and cuddle after you just knocked me up with like a million eggs. Yes, I'm a big soft scales who likes to cuddle after sex. All you had to do was knock me up to get me to admit it!" Ember finally confessed, rubbing her glowing bump and blushing hard.

"Oh, so dragons do do admitting they love someling?" Thorax pressed with a wink. "What else do they do?"

Ember smirked, pressing her leering muzzle to his. "They do naughty little changelings and get knocked up by them, that's what," she cooed. "Now shut up and kiss me. I'm gonna be the one riding you next, so enjoy your rest!"

Thorax's eyes went wide as love radiated in the air like a bonfire. "Oh, I would not mind that too much," he responded, nuzzling her.

Ember's sly grin persisted as she kissed him deeply. Oh, he's not the only one who would not mind, that's for sure.

Soon after Ember had mounted Thorax with her on top, feeling as his penis remained a penis, thick and satisfying as it was. She didn’t need this mating, her breeding instincts completely extinguished from earlier, but it did indeed feel good to have something thick and warm inside her, especially when Thorax came another massive load into her time and again, indeed treating her like his fertile queen as he bred her again and again.

They never did make it to the party.

********

It was the next Nightmare Night, Ember stealthily nuzzling Thorax as they walked along with the group, listening to Zecora’s yearly tradition of telling the little foals and other children the tale of Nightmare Moon.

Walking behind the unusual couple, who had officially been married several months ago, were six dragon-changeling hybrids, listening raptly to the rhyming zebra’s legend. The remaining seventeen of their brood of twenty-three, whom had all been born pure Changelings from Thorax’s sperm and eggs only, had been adopted by Thorax’s hive. Ember had reluctantly agreed to adopt them out to help Thorax’s hive grow bigger, a common practice among the community-driven hive to raise the young of others as a giant family. The other six, whom they’d decided to keep as their own, were born from Thorax’s changeling sperm fertilizing Ember’s dragon eggs.

The three males – whom they’d named Alate, Arculus, and Maxilla – were green with solid-colored, purple changeling eyes, their Changeling fur stopping at their underbarrel with an underbelly of scales, two green underbellies with blue upper scales, and one the opposite. They had hooves like Thorax’s, their wings thin and fairy-like like his too.

The other three, all females – whom were named Cinder, Spark, and Flicker – were more dragon-like, having slitter dragon eyes and mostly scaled a light blue like their dragon mother, but with a thick tuft of green fur on the tips of their tails. There was green fur in a thin trail along her back instead of the hard ridge a dragon would have, ending with the tuft at their tail’s end. Their wings were thick and membranous like Ember’s, their eyes slitted and firey red like hers too. Two of these three had orange horns unlike the other five, and one of those two had antlers like their father’s.

Those of them whose personalities were more dragon-like Ember were unfazed by the story, shrugging it off and one even snickering to herself about it, while the ones more like Thorax personality-wise were cowering behind their mother, eyes wide with fear.

“Figures not all our kids could be brave like me,” Ember teased Thorax, “After all, look who had to breed me to make them.”

“I dunno. I think it’s kinda cute that they’re scared. That just means we can comfort them and tell them it’s all okay,” Thorax said, doing just that, then smirking off the jab from his wife. He knew she was just teasing, as she so often did.

“Yeah, they're pretty cute, gotta say. I have to imagine those we keep of this next brood will be just as cute too.” Ember rubbed her very swollen belly, once more heavily gravid, her and Thorax’s eggs once more growing within her after another dragon mating season passed and Thorax had more than helped her get through it...on their honeymoon.

“Yeah, but since they’ll be half you, then, of course, they’ll be cute, cutie,” Thorax said, giving Ember a sexy smile.

“I told you, dragons don’t do cute, but…” Ember looked around, making sure they were alone, before whispering to rest to her husband; “Yeah, I think this brood will be even bigger than the last one, with all the eggs I felt you put in me this time! I mean look at me, I’m huge! I think it was even more than last time. How many do you think?”

“Hm...at least twenty-five or so, but I wasn’t counting, plus however many of your eggs you produced this time. So probably about...thirty or more?” Thorax replied, feeling rather warm in his groin. He was tempted to add to that number soon.

“So, you think Grandpa Torch would want to watch the kids again tonight? I’m thinking we need to milk some more eggs outta you…or maybe you could just be male this time? I’m already pregnant, so the eggs would just go to waste.” Ember whispered suggestively, getting a little wanting whimper from Thorax.

“Mmm…yes, please! I wanna cum a lot in you!” Thorax said with excitement, tail swishing like a foal being offered candy.

Ember simply smirked, rolling her eyes, “Sometimes I think you’re still a kid instead of helping me raise our kids…”

Ember sighed, before looking deep into her husband’s, her lover’s, eyes, smiling.

“...and I couldn’t love you more for it.”