Saving the Fury Population, Again not the way you'd think

Not entirely sure what inspired me to do this, other than me just wanting to explore a few unique kinks. Nothing to it but to get to it.

Enjoy!

It was another peaceful day on Berk and Hiccup sat at his desk with various bottles of different colored fluids on top of the wooden desk while Toothless was just lying on his stone slab hoping to take a quick nap after a morning of flying.

Hiccup didn't want to disturb Toothless's slumber, so he kept his thoughts to himself as he adds some more of the contents on his desk.

His intention was to make a serum for Toothless that helps increase fertility rates and allow him to breed with other dragons and produce offspring. After all, as far as Hiccup is concerned, Toothless is the last Night Fury in the world and he would hate to see such a magnificent species die out. While he's not entirely sure what the results of inbreeding would give for offspring, he was also hoping for the better qualities from both dragons to be passed on for generations.

"Ok, last few ingredients. A dash of Night Fury saliva, a sprinkle of crushed dried dragon nip, and finally, a heathy dose of dragon lust."

He adds in the ingredients and gives the mixture a stir, ending up with a black liquid with the viscosity of heavy cream. "Ok, that should do it." He picks up a syringe and pulls some of the fluid into the canister before thinking to himself, "Now, I just gotta give it to him."

He gets up and sneaks over to Toothless, who still appeared to be sound asleep, so he feels around the Night Fury's neck, an area with fewer scales that is ideal for injections like this, and finds a vein, so he sticks the needle into Toothless's neck, who barely even stirred, and injects the black fluid into his system.

Not sure how long it would take for the serum to take effect, Hiccup simply heads downstairs to prepare himself some lunch. However, minutes later, Hiccup began to hear some loud grunts coming from upstairs. "Toothless!" He calls as he dashes back upstairs to see the Night Fury curled up in a ball, seeming to hold onto his lower region. "Toothless? Toothless, what's wrong? Can I see?"

However, Toothless uses a wing to bat Hiccup away as he continues to yelp in pain. "Toothless, I can't help you if I can't see what's going on, now come on, bud!" Toothless looks up at Hiccup, clearly not wanting him to see what's going on, so Hiccup shrugs, "Alright, we're doing this the hard way."

Hiccup slips a hand under Toothless's neck and scratches what he knows to be his sweet spot, which makes the black dragon loose all control of his limbs as Hiccup moves his wings back and states, "Ok, now just let me seeeeeeeee…"

What Hiccup saw was, well, he wasn't sure what he was looking at. Nestled between Toothless's hind legs was a grapefruit sized ball sack, something Hiccup wasn't aware dragons had, but what was even more shocking was a set of four small nubs that appeared on the black scrotum.

Very curious, Hiccup let his hand wander over to get a feel for the nubs on Toothless's balls, finding it very odd that he's placing his hand there, and gives them a few squeezes, causing a strange looking white fluid to squirt out of them. What's more is that the squeezing also seemed to cause the tip of Toothless's pink cock poke out of his sheath.

With his hand now coated in the white fluid, Hiccup brings it up to give the fluid a sniff, finding it having not much of a smell to it at all, before giving it a taste and realizing, "It's…milk? Why would a ball sack be squirting milk? Unless it's an udder of some kind." Hiccup presses into the black scrotum and feels something even more strange, inside the huge udder-scrotum was, indeed, a pair of testicles that, even though they were surrounded by the milk contained within this new udder scrotum, were large enough that Hiccup could feel just how big they are.

Stepping back and looking at a clearly embarrassed Toothless, Hiccup asks, "How…what, I mean, how did…this happe-whoa!"

Suddenly, Hiccup feels a stir in his own lower region, one that heated up his leg, leg stump and torso to the point where he felt like he was on fire, making him shred his clothes off. Concerned for his human, Toothless goes over and gives Hiccup a head nudge to see if he's ok.

Hiccup places a hand on Toothless's snout and tells him, "I'm fine, bud, really, I just…Ah!" A jolt of pain shoots through Hiccup's spine as he feels something growing from his waist.

Turning over, Hiccup made out that those things that were growing were…paws. Thick, black, four clawed paws that seemed to extend from his pelvis as his entire lower half extends to about his normal length, giving him two sets of legs along with his arms.

What's more is that that entire area of legs seemed to get covered in jet-black scales, the stump of his original left leg extended into a flesh leg and paw along with the right original leg, his butt sprouted a long tail with a set of fins towards the tip and at the base, both his upper and new lower back seems to sprout nubs that seem to turn into wings, and his genitals increase in size to the point where Hiccup develops an equine penis that reaches past his front legs and a set of balls that could easily swallow Hiccup's head.

Looking down at his new, 6 limbed, 10 if you count the wings, self, Hiccup came to a strong realization. "I just became…a Night Fury! Or, sort of! Part of me did! Uh…Toothless, you-?"

Hiccup looks over and sees Toothless staring at him with a mouth wide open and he appeared to be drooling onto the floor below. "Holy…shit…you look…amazing!"

Hearing those words coming from a deep source and seeing that his dragon's lips were moving along with those words, Hiccup came to another conclusion, "Did…did you just TALK?"

Toothless gasps even harder. "Did you just understand me?"

Hiccup replies, "Yeah, well-!"

He was cut off as Toothless grabs his human torso in a tight hug and tells him, "Oh my gods, Hiccup, this is all I've ever wanted! To finally be able to talk to you!"

Hiccup pats Toothless on the head and replies, "Yeah, well, hold on, you're not concerned about why I look like this? Or how you got…that?" He gestures to Toothless's udder balls.

Toothless shrugs. "Oh, yeah, it's probably from that stuff that you injected me with."

Hiccup raises a brow. "You…knew about that?"

Toothless lets out a chuckle. "Hiccup, you should know by now that I'm a light sleeper. I heard you come over and inject me with that black stuff, but didn't want to say anything. Anyway, I guess whatever was in me got into my fluids and when you drank my milk it caused you to transform as well."

Hiccup blinks to that. "Wow, you're certainly smarter than your cat-like cuteness leads you on to be."

Toothless then looks down at Hiccup's lower half and comments, "And my my, what a sexy beast you turned out to be." He walks around to check out all of Hiccup's new body.

"Uh, thanks. Not really sure what to call myself, actually."

Toothless gets to Hiccup's head and thinks about that for a moment and replies, "Well, to me you look kind of like a centaur, a creature that's said to be a human torso on a horse body, only you seem to have taken on a dragon body for your lower half."

Hiccup nods. "Interesting. So a dragontaur?"

Toothless nods. "Indeed. A sexy one at that! Especially with this monster right here!" He leans his face in and gives the 15 inch long horsecock that Hiccup was sprouting a sniff, getting a musky barnyard aroma that nearly made him drool all over Hiccup.

Hiccup comments, "I thought you were straight."

Toothless shrugs. "I never really could say anything to you up until now." He gives the flared tip a few licks, loving the salty taste, before slipping said cock tip into his gummy mouth.

Hiccup grabs Toothless's sides with his human arms and comments, "Toothless, what are you-ohhhhh!" The warm Night Fury mouth wrapping around his cock tip felt like a warm blanket wrapping around him. It was then that Hiccup noticed a very odd scent, one that's a mix of musk, chili peppers and flowers but couldn't quite pin what that smell actually was.

Toothless pulls his mouth away from Hiccup's cock and gives his lips a lick before commenting, "Dam, your dick is delicious! That's it, I gotta have it inside me!"

"Wait, wha-?" Hiccup didn't even have time to think as Toothless walks over to the other side of the room, lifts his tail and spreads his hind legs, almost squishing his udder balls against the ground and revealing something else that threw Hiccup off a bit. Below his tail was his pink pucker, which Hiccup did expect to see, but just below that was a set of lips that seemed to glisten from how wet they were. Hiccup blinks to that, "Toothless…have you always had a vagina?"

Surprised by the question, Toothless asks, "What do you, oh!" He snakes the tip of his tail around to his rear and, sure enough, just below his anus was the vaginal folds that Hiccup mentioned. "Shit, that definitely wasn't there earlier. Must be another effect of the stuff you gave me. Well then…"

"Well then…what?"

Toothless glances to his rear and gives his black ass a lift. "Come on, Hiccup, you have a penis, I have a vagina, did your old man really not teach you about this stuff?"

Hiccup blinks as while his dad did give him 'the talk' when he came of age, he certainly never thought he'd see such a thing with dragons, let alone with himself being a dragontaur. "Oh…uh…well…" He was very hesitant about this, after all this is Hiccup's best friend in the world, the dragon that he personally trained and helped at his lowest point.

He was about to decline when two things hit him, one he realized that he had a massive erection that was twitching and throbbing from how hard it was which he certainly couldn't leave the house while sprouting, and he also noticed that floral, musky scent hit him again and this time was much stronger. Hiccup quickly figured out that the scent was coming from Toothless's vagina, and he had to admit that it smelled…quite good.

"…You know what? To heck with it." He says as he rolls himself onto his four legs and attempts to stand, finding that doing so with an additional set of legs was rather difficult, but once he found his footing with his thick dragon paws, he manages to turn himself around so he could mount Toothless.

In Hiccup's mind, he wondered why he was doing this, it was as if some instinct in his dragon half was telling him to do so, but the next thing he knew he was bringing the tip of his large horsecock up and pushes it inside of Toothless's cunt, instantly feeling the warm tightness of the cervix around his cock and making him groan deep.

Now successfully inside, Hiccup wraps his front paws around Toothless's sides and begins to move his hips back and forth, making his cock tip move in and out of Toothless's pussy and making him feel really good. Since Hiccup didn't know how to control his wings yet, they just flopped down to the side.

Once Hiccup was in, Toothless groans deep with pleasure as his vaginal walls were spread out. He digs his claws into the floor, clenches his teeth and gets ready for a rough ride.

Toothless felt a very unique stir in his lower region as the balls encased in his new udder scrotum begin to churn with Night Fury sperm, his scrotum begins to squish and around as the milk inside them is moved aside by his actual balls and his large cock grows to full size and gets pressed against the floor.

Hiccup originally started slow as he wasn't sure if Toothless could handle his very large cock, but a few tight squeezes around said cock, how Toothless figured out how to clench his new cunt so quickly is beyond Hiccup, told him that he wanted more, so he pushes more and more of his cock inside until before he knew it Hiccup was already up to the medial ring at the center of his cock, loving how Toothless's warm insides wrap around the upper half of his cock.

Hiccup leans in and wraps his humanoid arms around Toothless's neck in a loving embrace as he fucks Toothless's pussy harder and harder, noticing the pleasured look in Toothless's eyes. Suddenly, all sense of this being wrong flew right out the window like Toothless whenever he accidentally breaks something valuable, right now only one thing was on Hiccup's mind, to breed his loving mate. He leans in and gives Toothless a kiss on the cheek as he continues doing his thing.

The more Hiccup pumps his cock into Toothless's cunt, the more his fat Night Fury balls slam into Toothless's hind legs and udder balls, sending jolts of pleasure up his spine as Toothless loses nearly all sense of what's right. His tongue hangs out of the side of his mouth, his cock continues to drizzle pre onto the floor and the four nipples lodged on his scrotum begin to seep milk at a rate to where milk began to puddle on the floor below.

It took a few more thrusts before Hiccup yells out loud in pleasure and his horse cock twitches, unloading a large amount of cum that ends up spilling out of Toothless's cunt and puddling up on the floor, dwarfing the small puddles of milk Toothless had created.

Moments later, Hiccup loses footing in all four legs and ends up flopping down onto Toothless's back, making Toothless drop to the floor as well, squishing his udder balls and cock, which had also released a good amount of cum that splattered on Toothless's chest and on the floor, between himself and the floor.

A few moments of panting later, Hiccup uses a hand to twirl Toothless's ear as he comments, "I have no idea how I'm going to explain this to my dad."

Toothless shrugs. "Hey, if he kicks us out because of you becoming a dragontaur, then I know a place where we can go and live in peace…with our children, that is."

Hiccup's eyes widen. "Wait, you really think you're gonna get pregnant from this?"

Toothless shrugs. "Assuming my vagina isn't just there for show and the cum you just released is as potent as I think it is…is that something you'd want?"

Hiccup thinks about it some more before replying with a kiss on Toothless's cheek. "I think I'd like that a lot, actually."

The following days were filled with a lot of awkward questions and conversations. As soon as his dad came home, Hiccup couldn't really hide the fact that he now has four Night Fury legs and wings tucked under his human torso, Hiccup wasn't sure how his dad would handle the truth that he drank Toothless's milk, Toothless had to keep his udder balls hidden as best as he could for the time being, so he just told him, and anyone else that asked, that it was all an accident, and Stoick seemed to believe him.

Hiccup had to forgo the use of pants as no one makes pants that fit a dragon, so he just lets his large balls and sheath hang out in the open air, which Toothless can't seem to take his eyes off of. Since Hiccup can't work Toothless's tail anymore, he made an automatic tail fin for Toothless to get around and, in return, Toothless taught Hiccup how to use his own wings.

2 weeks later, the symptoms of morning sickness, a size increase in his udder balls and a slight bulge in his stomach confirmed that Toothless was pregnant with Hiccup's hatchlings, something that needed even further explanation as everyone assumed Toothless was a boy, but they all accepted that this is just the Night Fury population getting back up and running and Hiccup couldn't be more excited about the fact that he will soon be a father.

Course that first time they had sex certainly wasn't the last. Any time the two of them find themselves alone, which is most nights as Hiccup's dad is a busy man, they'll have a loving session in whatever position they can think of, a favorite for both being Toothless lying on his back and squishing his cock, belly and udder balls between Hiccup's dragon half as Hiccup fucks his ass hard and fast.

9 months after that first mating session, the big day came and Toothless gave birth to an adorable baby boy dragontaur that the two of them decided to name Midnight. It was very weird at first for Toothless to have to feed Midnight using his udder balls, but he soon realized that it felt pretty good and even let Hiccup have a taste as he wishes.

The two of them now live as happy parents and even happier lovers and, if asked if they could do it all again, they wouldn't change a single thing.