"So, in short most of our organs are living magical crystal, like our hearts for example." Ember explain as she describes the inter workings of dragon kind.

"Dragon's hearts are living magical crystals?...Like the Crystal Heart...Oh colt, where did Princess Amore get that thing!?" Twilight thought, as she begin to wonder if there was a possible dark connection between the Crystal Heart of the Crystal Empire and the reason why Princess Amore never rutted her royal dragon.

Twilight quickly looks over at the other mares to see if they are wondering the same thing. One look at Fluttershy's yellow face was enough to tell her she was thinking same thing, while Limestone still seem to have been thinking about it. Before she spoke that is. "Wait a minute, this crystal organ thing sounds a lot like what the crystal empire has with its fancy crystal he-"

'Well I'm back, and smelling like peaches for some reason." Spike said as he enter the arena along side the much bigger size category Tiamat.

"That because peaches are the most popular fruit in the dragon lands that isn't made of gems, metal, or meat. So we have a lot of peach scented things." Pink head said.

"Meat? You grow fruits made of meat? Where do you even get these meat fruits?" Limestone ask, clearly very confuse.

"From meat trees of course, where else would you get a meat fruit?" Blue head said.

This cause a very confuse moment of silent for the creatures from Equestria.

"So anyway, the next breeder should be a special one for you ponies, she is a steam cetus draconthropy name Fish Eye." Ember said, breaking the silent.

"Why would she be a special one for us?" Fluttershy ask.

"And what is a cetus or a draconthropy?" Twilight ask.

"Her breath weapon is stream? Like a stream bath?" Limestone said.

"You don't know what a draconthropy is? That is surprising, but in that case I won't ruin the surprise. Now as for the cetus part, they are a dragonflight that has fish like tail instead of legs." Ember explain.

"Like sea ponies or sirens." Twilight said as she wrote.

"That is right, and as for the stream, it less like a stream bath and more like stream so hot it can cook you alive." Ember explain to Limestone.

"Fish Eye, it is time for you to spawn!" White head called out.

The arena doors open, and Fish Eye came out to the surprise of of the equestrians. For instead of being a dragoness she was a blue fur, purple mane unicorn mare with C-cups and a nice round ass, as well as a swimmer build.

"So you're the pony dragon that I heard about? Funny I thought were a half-pony or one of my kind." Fish Eye said as she saw Spike.

"Um, I'm sorry but I'm a bit confuse here. I thought I was breeding a cetus draconthroy dragoness ms, not an unicorn." Spike said said while he snatch of his head.

The mare just laugh," Oh I get it, you don't know what a draconthropy is do you? Well, in that case would it help if I look like this."

Suddenly In front of Spike very eyes the smaller mare change forms. She grew as big as he was, the fur on her belly chest disappear and its place purple dragon underbelly scales appear, her hands became web and claw like, her tail transform into a scaly fish like tail, her green eyes turn draconic, she grew gill on the side of neck, and she grew a third scaly boob in the between the other two!

"What the Tartarus?!" Limestone scream in surprise from the stands.

"So do you like this form? Or maybe you would like me better looking like this?" Fish Eye ask as she change yet again!

This grew even bigger then Spike, into full size dragoness height, her hands turn right into scaly web dragon claws, her pony ears turn into fins, her purple mane turn into a purple frilled, her pony snout became a dragon maw, her blue change into blue scales, and her legs and tail fuse together into a fish like lower half like that of a sea pony! Only her unicorn horn remain to show she had any pony blood in her veins.

"Ember, what just happen? How did she change like that?" Twilight ask not believing what see was seeing.

"Is this something all her breed can do?" Fluttershy ask, clearly confuse on how a mare could turn half-dragon then into a full dragon.

"Hey Fish Eye, why don't you explain what a draconthropy is?" Ember shout from the stands.

"As you wish my queen." Fish Eye said as turn right back into a mare.

"First off draconthropy aren't really a breed per say, but frankly that is probably the best way to descried us as I have heard no other way of. Second off, as how I did that, well strange things happen when equine and draconic blood mix." Fish Eye started to explain.

"As you may or may not know when dragon ruts a non-dragon the whelps will either be a full dragon, a half-dragon, or a dragonborn. However, when the non-dragon parent is an equine there is another option, and that us draconthropies. We are full dragons who can change between dragon, half-dragon, or equine form at will." Fish Eye explain.

"So, one of your parents is a pony?" Spike ask, not fully believing what he was hearing.

"No, both of my parents were dragons, see there are other ways for draconthropies to come about. Equine dragonborns, equine half-dragons, as well as equine dragonbloods, have a change of making a little draconthropy if they get it on with another equine with draconic ancestry, or just another full dragon. Likewise, when dragons who have equine ancestry, as long as they are the same race of equine of course, get its on there is chance the whelps will also be draconthropies. And of course we draconthropies can make our own little draconthropy whelps. I have also heard that there are magical ways for equines with dragon's blood in their veins to become draconthropies, and even rarer magical ways for equines without dragon ancestors to become one as well. But I don't really know if any of them really work or not, and I have never heard of anyway for a dragon to become a draconthropy besides being hatch one." Fish Eye explains, as Twilight quickly writes down what she is saying.

"My dragon breed only make full dragons or whatever the mother is,...and maybe the father too now that I think about it." Spike said as he thought of his newly laid eggs at home, wondering since Shinning Armor was probably their father if there would be an unicorn colt almost them instead of a filly."Anyway, as I was getting at, that how it works for my breed, but all my wives, and marefriend up there all have draconic ancestry, and my biological mother was an unicorn so what does that mean for me and my kids?"

"I don't really know, I guess by how your breed work your pony whelps may give you some draconthropy grandwhelps. And maybe you will have a higher chance with dragons to have draconthropies. I mean I don't really know the odds for any of this so it is just a guess, but any of the whelps I make for you and Queen Ember will be draconthropies more likely then anything." Fish Eye said, while clearly thinking about what Spike said.

"Spike biological mother was an unicorn? I thought he didn't know anything about his biological parents." Ember said to the ponies.

"Oh, we recently found out who his late biological parents were, turns out his mother was a princess from one of the lesser royal houses of Equestria." Fluttershy explain.

"He is a born Equestria prince? Wow Ember, how did you pick one this good?" White head ask.

"So are you ready to start now that you know this?" Fish Eye ask Spike.

"Sure, want me to go down on you first?" Spike ask the weredragon, or is it wereunicorn?

"How about you go up on me instead? There aren't a lot of dragons around here that knows how to pleasure an unicorn horn. You know, since dragon horns are pure bone and all while unicorn horns aren't. But you're married to an alicorn sure I'm guessing you're really know how to give horn." Fish Eye said with a spark of lust in her eyes.

Spike on hearing took a look at her horn, then he stuck out his tongue and wrap her horn around all it. Only leaving the tip unwrap as he used his fork trips to play with it. By gently massaging just the sides of the tip, all the while using the rest of his tongue to massage and squeeze the rest of the horn as tongue move back and fort from around it.

Fish Eye moan in pleasure from Spike's horn job, but he wasn't done yet. Spike open his mouth as wide as he could, and shallow the whole horn. All the while never stopping horn massage, in fact the added suction combine with the warm of his mouth had Fish Eye's knees shaking.

Her moans grew louder, eyes turn cross, and her pony pussy started to dip from Spike's tongue work. She just couldn't take it any more, and with a loud scream she filled with her horn goo while she soak the ground with her fish sauce.

When she was done Spike open her mouth and release her.

"Taste a bit fishy." Spike said while licking his lips.

"Damn! I haven't horn job like that since I was a drake!" Fish Eye shouted with a smile as drool drip onto her face from her horn.

"Since when now?" Spike ask, as he haven't been told yet the things his mares have learn of his kind.

"Hey, how about before we start breeding you get on all four so I can return the favor?" Fish Eye asked.

Now Spike wasn't to sure about that, while did get many, many rim jobs from both the alicorn sisters and Pinkie Pie he wasn't a big fan of them. Or anything that involve his ass for that matter, but he thought figure he she may just wanted to give his dicks oral from back there and he didn't really want to denied the dragonesses giving him and Ember some whelps so he decided he may as well do it.

So Spike got down on all fours, and Fish Eye walk behind and knee down. She also lifted his tail up and out of the way.

"You're going to love this, and since my horn is already lub up we can get right to it!" Fish Eye sai from behind Spike.

"Wait, what do you me-HELLO!" Spike shouted as he felt Fish Eye's horn sham right up his ass!

All the drakes love my horn poundings ,so much so it is the main source of my Income!" Fish say with a smile as she charge up horn, something that Spike could feel all to well.

Fish Eye grab Spike's hips and started to thrust, literally humping his ass with her head. All the while having her charge horn sending pluses of magic deep into that dragon booty with every slam of head! Now, Spike has had many things put up ass since the start of his sex life, but this was the first time he had horn up there! And the familir tingling feeling of be grab telekinesis now coming inside of his ass combine with the hard pounding he was getting from pony sharpe dragon were to much for him. But that Fish Eye wasn't finish yet, she stil had one more trick to show him. Suddently Spike felt her horn grow wider and longer! This was because Fish Eye had taken her dragon pony hybrid form.

This was way too much for him and soon he felt himself cumming while Fish Eye was started to filled his backside with her horn goo, causing him to wonder if it was possible to get pregnant from horn goo. He didn't have much time to think about that because soon as Fish Eye was done she grab him and flip him onto his his back!

"I hope you done mind but I feel my hybrid form is the best for sex. After all it is easier when you have legs instead of a giant fish tail, and my pony form makes it bit hard to take something as big as I'm going to take." Fish Eye said as slowing took both of Spike's twins into her fish cave.

When his hips met hers Fish Eye started to ride,bring herself crashing down as hard as she could, over and over while Spike pistorn and hump up as best best he could. Spike also descided to add to act by shoving his tail up her tail hole, mostly to pay her back for his hole. Sadly, it seem she like it for more then he did judging by her moans. Soon Fish Eye sham down one final time, earning Spike a crotch cover in fish oil as he filled her with a new school of sperm.

"Well, looks like I Queen Ember got her money wroth, and who knows. Maybe I got you pregos too with my goo." Fish Eye said with a laugh. Spike laugh too, at what he was really hoping was just a joke.

Meanwhile Twilight Velvet and Night Light are setting up their own box at home.

Meanwhile in a dark forest three unicorns are sitting around a cauldron. One is a yellow mare with a fizzy orange afro mane, another is a red mare with freckles and a short silver mane, and last is a feminine blue stallion with a long black mane that had two blue streaks in the front.

"I think we almost have it! Soon we will get our revenge on that purple bitch of a princess and her blue cunt of a friend!" The yellow one known as Goldcap said.

"Yeah revenge is find and all, but how will this help us to become alicorn princesses?" The red mare known as Zappityhoof said.

"And an alicorn prince." The highly feminine stallion in a black dress known as Decepticolt added.

Goldcap rolled her eyes and said."Oh please little brother you're more mare like then us and you're basically a gelding, In fact sense you're only one step up from having a micro-penis you may as well take some scissors and make it official.

Zappityhoof laugh and added,"She has a point baby bro, beside it isn't like you're ever going to find somepony to let you be the top anyway with that foal dick you got."

"Anyway, how are we going to become alicorns and get our revenge with this?" Decepticolt said trying to change the topic from removing his tiny stallion hood to anything else.

"Patient little brother, once we get this potion we will be able to try and perform our alicorn spell again with two set wings this time, and maybe even a real alicorn horn!" Goldcap said.

"And if that work maybe we could try and use the same spell we use to make the alicorn potion to get Decepticolt a bigger dick." Zappityhoof said with a smile.

"Shouldn't be to hard, after all there are plenty squirrels around to steal one from." Goldcap said, causing both mares to break down laughing at their younger brother tiny, tiny penis.

Author's Note

Draconthropy, also known as were-dragons, are a template from DnD. They are what they sound like and I change them here to a breed because I wanted too.

Cetus appear in the G1 MLP comics and were just called sea monsters.