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Night of the Spermatosaurus

For Mohrahk

By Draconicon

For the sergal and the feline-esque Kotyavr, the moonlit forest was something of a familiar destination. The pair of them visited regularly, mostly at the latter's insistence, always looking for something or other for her work.

For Moh, the sergal, it was just an excuse to be alone with his friend.

Moh smiled as he followed behind her, the moon and the stars gleaming through the trees. Though it was a beautiful sight all around them, his eyes were constantly drawn down, down, down to that slowly swaying rump that was facing back at him. Vasilisa, of course, had to know that he was staring. She didn't miss things like that.

He didn't care if she knew that he was 'admiring' her the way that he did, nor did he imagine that she particularly minded being admired. Not when they were alone, at least.

"Have you seen any purple flowers yet?" the Kotyavr asked.

"Hmm?"

"Purple flowers? The whole reason we're here?"

She turned, reaching into her front pocket and pulling one out. The petals were a brilliant purple, shining as if they were reflecting the starlight above. She twirled it in his face with an expression that was half-amused, half-exasperated.

"Did you forget what we were looking for?"

"No, no, not at all," Moh said, shaking his head. "I just...saw something more interesting."

"My ass is not more interesting than this flower. This flower can do a whole lot more than my ass can."

Can you fuck it? he wondered.

She put it away before he could ask, waving for him to follow. Knowing better than to keep her waiting, he did as he was told.

As they walked through the forest - her in a purple shirt and jeans, him with just the jeans - they made small talk, chatting about their plans for the week. She was going to be working on a new construction project, something that was going to be cutting into the forest a bit with the floor plan. He'd be working on something or other, whatever the temp agency sent him to, whatever was paying.

Not much, really. It was more something that she was doing to keep him distracted from staring at her, to keep him from listening to his instincts.

After all, sergals were quite eager to go for sex whenever they could, and it was hard to resist as he looked at the long-toothed feline from behind, or even from the side. She had such lovely curves, perfect for the sort of fun that he enjoyed having. If he could just have a little bit of time when they weren't walking -

But no. Vasilisa was always on the move, only slowing down from time to time when she found a flower that looked promising before moving on. He got no further than reaching out to caress her rump before she was on the move again.

It frustrated his libido, but he knew that there'd be another time. There was always another time.

As they left the city further behind, though, he smelled something. The forest scents were always thick and heavy, with the smell of bark and sap and moisture laying on everything, but there was something new this time. Something a bit hotter, warmer.

Muskier.

He shook his head a few times, trying to clear it, but it was already working on his cock, already pushing it to get harder, stiffer, more needy. He groaned under his breath as it pushed against the front of his pants, starting to tent out his jeans.

He slowed down, looking at Vasilisa's ass again, the curvy thing swaying beneath her gray tail. It was so...inviting...

Moh leaned forward, whispering over her shoulder.

"I want you again..."

"What?" she asked with a snarl.

"I want you...come on...it's been a few hours."

He was already working his pants off, sliding them down to his ankles. He stepped out of them, his shaft thrust forward, poking out from his crotch at full erection. It needed to go somewhere hotter, warmer, wetter.

She squirmed as he ran his hands along her stomach, pulling at her pants and her shirt. It wasn't much of a struggle, more one of annoyance than anything else. She grumbled about wasting time, about how they were going to be at this for over an hour, but he barely heard her.

There was something to that smell in the air that made it hard to think of anything but rutting, mating, fucking. Sergals had a high libido to begin with, and the Kotyavr had a reasonably high one, but this was...this was very new to him.

They fell to all fours, her beneath him, her muzzle twisted in a growl and a glare as she looked back at him. Moh just smiled back, unable to help himself as he started grinding against her backside, his cock working against her slippery sex. He wanted inside of her. He didn't even know why anymore, but that smell, that hot, thick, heavy smell that burned at his mind even more than a female of his own species might have done...oh, that smell made this completely right, completely needed.

Grinding in the mud, Moh was just about to start fucking her in earnest when the Kotyavr grabbed him by the shoulder, squeezing.

"Did you hear that?"

"Mmm...I only hear you dripping..."

"No, seriously, I heard something."

"Come on, it can't be that bad."

"You idiot. Just...stand up."

He wanted to do anything but that, but she kept her hips pressed back to him as they slowly got back to their feet, so he was able to deal with it. Mostly. He groaned as he felt his shaft slip between her thighs, thrusting, grinding forward to pleasure himself that much more as she looked around them for the source of whatever she'd heard.

Mmph. There's nothing there. Just a forest. Let's get back to fucking.

He tried to reach around her, trying to reach down to her pussy so that he could give her a few rubs and hopefully get her back into the mood. Sure, she was a bit grumpy now, but there was always a way to turn that around. He was good at fucking, after all, and she usually -

Suddenly, Vasilisa's hand grabbed him by the chin, turning him to look to the side. He looked down, blinking.

Sitting there like a dog on its haunches was a creature that he didn't recognize in the slightest. It seemed to be eye-less, like a great dog-cat thing, with its head cocked to the side and its white fur flopping with it. It was big enough to come up to his waist, too, so it wasn't just a small creature looking at him.

But it was so different, so strange...and admittedly, he was still so out of it that he just grinned.

"Hi," he said.

"It's a Spermatosaurus. No wonder you're so horny," she muttered.

"Oh, it's cute."

"It's cute. You say that now. Wait until it gets started on - what are you doing?"

He pulled out of her, walking on wobbly legs towards the new creature. Vasilisa was shouting at him, but he was barely paying any attention. The creature was that much more interesting.

And besides, if he couldn't fuck the Kotyavr, then perhaps the spermatosaurus would be a bit more willing. After all, it had the word 'sperm' in its name. That had to mean something good for those that wanted sex, right?

He walked over and petted it on the head, ruffling his fingers through the white fur coat. It opened its mouth, panting a bit, and then stuck out its tongue.

As it breathed over his crotch, he smelled that thick smell that had driven him into lust the first time. His eyes closed halfway, his tongue hanging out of his mouth as his cock leaped right back up, spurting with pre-cum all over the creature's face.

"Mmmm...that...that smells good."

"Idiot!"

Vasilisa stomped off to the side of the clearing, and he knew that she was looking at him with venom in her eyes and irritation in her body language. That said, he didn't have any reason to stop what he was doing...

Particularly as the Spermatosaurus tilted its head back and licked along the bottom of his cock.

Moh gasped at the feeling, arching his back and standing on tiptoes at the electrical shock of pleasure that ran up and down his cock at that simple little lick. It was so different from feeling the wetness inside of his friend, so different from fucking the Kotyavr, and in a way, so much better. It was willing, it was happy, it was an eager little lick that brought all sorts of other feelings along with it.

He humped forward along the tongue, his cock booping the creature on the nose a few times before he was able to stop himself. It licked him again, coating his cock with spit and who knew what else, but it was making him feel good, so very good.

His libido was up in the stratosphere, and his cock was so hard, and he was so focused on feeling good that he didn't even notice when the creature leaned down and started to lick closer to the head of his cock. Nor did he notice when its tongue flicked up towards his urethra.

He only noticed it when the tongue slid inside of his cock, going deep on the first thrust and leaving him gasping as it started to bulge his dick out.

"Oooooh, yes..."

"Don't say I didn't warn you."

"Mmm..."

"And there's the idiot I know..."

Vasilisa's mockery and warnings and anger aside, this felt amazing. He wanted to go further, to let the creature do more to him, and it seemed to read his mind.

The sergal arched his back, thrusting forward as that tongue seemed to set to work fucking his cock, sliding up and down the urethra at an amazing pace. Every time that it sprung forward, it seemed to reach all the way down to his balls, and every time it pulled back, it felt like someone was sucking the seed right out of his testicles.

In, out, in, out, wriggling and rippling and vibrating every time. He didn't know how he wasn't cumming yet. Maybe he was. It felt good enough that he might just be blowing his load again and again and the creature was just swallowing it to keep from making a mess. If it was, that was a very kind Spermatosaurus.

In and out, in and out, the tongue working all the way to the depths of his shaft, and he could see the bulge whenever he looked down at his cock. The burning smell in the air was making it so that he didn't question what was happening. All that mattered was that it felt good, that it felt right, that he enjoyed what was happening to him.

Yes, yes, fuck my cock...fuck my cock good and hard...stretch it, fill it...

Moh moaned, thrusting his hips forward, helping to sink that tongue further down his shaft, enjoying the way that it made the head of his cock feel so big and full. Every time that his urethra was opened by another slithering lick down his shaft, he swore that his cock grew just a bit, getting heavier, his balls -

Oh, his balls. They were bulging. He hadn't noticed them until then, but they were growing, thickening, churning down between his legs. The creature had to be shoving something down his cock, doing something to him, but despite the dangers of corruption and transformation, he couldn't stop himself from enjoying it. It just felt good, too good, too good for him to be able to stop. All he wanted was more.

So much more.

He slipped back, trying to grab his cock, but the creature thrust its head forward, swallowing his shaft into its mouth. He felt that tongue go further than ever, then -

Pulse, pulse, squirt.

His eyes went wide, the forest going green for a moment as something was squirted down his cock with great force. His balls suddenly ballooned, his thighs forced apart by their sheer size. He panted, shivered, even howled as he wanted to cum, but couldn't, not with that tongue shoved down his cock, not with that thing blocking the way.

Finally, it pulled out, and he slumped to the ground. He fell to his hands and knees, too weak to hold himself up, and his cock started spurting, started drooling. Even when it was done with what would have been a huge orgasm, it didn't stop leaking, silvery strands of pre-cum flowing constantly from the shaft.

It...did something...

He knew that had to be the case, but Moh couldn't bring himself to care. It felt good, so why did it matter?

The Spermatosaurus walked around him, nudging him along the thigh with its muzzle, pushing him along. It felt good, felt right, and he lifted his tail, the need to continue getting fucked, getting bred, having fun filling him and pushing out all other conscious thought.

The white-furred thing mounted him from behind, hopping up on his back. Its cock was big, but wet, wet and dripping just like his was.

"Take me..."

He barely heard himself say it, almost feeling like it was something else, someone else saying the words.

Did it matter?

No.

No, it didn't matter. What mattered was feeling good, what mattered was getting what he needed. He needed to be fucked. If he couldn't fuck, he needed to be fucked.

He arched his back, offering his ass to the creature, and it took the offer immediately. A slickened-up cock tip pushed right against his pucker, sliding in without warning and without mercy. He gasped out loud, his breath knocked from his lungs from the first rough thrust, but it felt good...

So good...

His eyes rolled back in their sockets as each thrust forced another spurt of pre-cum from his balls, milking him like mad. Soon, he was kneeling over a puddle of it, the silvery goo reflecting starlight and moonlight beneath him, thick and heavy and wet and adding to the thick smell of sex in the air.

Out of the corner of his eye, he could see Vasilisa watching them, staring with disapproval and annoyance, her teeth bared in rage. Probably angry at being delayed or slowed down, if he knew her.

He didn't care. Not now, at least. She'd make him pay for it later, so why not enjoy what he was getting now?

That was the reasoning he used, and it worked...most of the time.

The creature kept humping him, and he kept gasping as it felt like he was getting his balls squeezed ever so pleasurably every time that it bottomed out in him. His cock was drooling constantly, squirting every few seconds and adding to the mess on the ground. He kept thinking that he was going to run out of pre-cum, that he would be shooting blanks soon enough, but it never happened.

His body was slowly changing, too, his legs thickening up and his arms starting to pull in a little, his fur starting to grow and his body starting to fall forward more, more naturally holding the all-fours position.

It was changing him, warping him with more than just his cock and balls. He needed...he needed...

He needed more.

Breathing in the thick scent of smell, he started to rock his hips back against the mating, rutting cock in his rump, taking it as far inside of him as he could. Every time that he felt the Spermatosaurus's balls bumping against his own, he knew that he was doing it right. Every time that he felt the heavy cock spreading him open, he knew that he was giving the beast what it needed.

And every time that he felt its thick pre-seed spreading itself around in his ass, filling him and leaving him with a tingling itch, he knew that it was making him more and more its own.

He continued to transform, his muzzle growing longer with each thrust, his fingers becoming thicker, less dexterous and less able to use things. His tail whipped about, becoming narrower at the tip, his ears coming more and more to a point. Everything was coming through clearer now, from scent to sound to touch.

The only thing that was less good was sight.

His eyes were slowly closing, not from tiredness or pleasure, but because something was changing on his head. Something was disappearing, pulling in further, further, further. His eyelids, they were closing, sealing, losing the ability to open.

He fought it, but only for a second, only for that moment before -

"MMMMMPH!"

Moh barely managed to bite down and keep from howling as he was pushed over the edge, cumming hard all over the ground, spreading the puddle further. The creature above him did the same, cumming hard, but cumming inside of him.

If the pre-cum itched and tingled where it spread, this was something on an entirely different scale. It felt like it was burning through him, purifying him, like fire in his veins that was less agony and more pure heated pleasure.

He slumped forward, soaking his belly in his own cummy mess before he could lift himself up.

The forest went green again for a moment, and then his eyes...his eyes finally shut, and they did not open. Moh covered them, trying to feel for the gaps of the eyelids, trying to find a way to force them open like one might have done with an infection.

But no. The eyelids had not just closed, but disappeared. There was nothing of them left. Nothing that might have been able to open again.

He pulled his hands down, trying to look around. There was...

There was something. It wasn't sight, but rather like a thermal sort of view, able to see things through the heat that they put off. He could see the heat on the ground, fading from the puddles but still there. He could see the glimmer of orange-red off of his paw, and as he turned -

He saw the other Spermatosaurus. He saw the one that had transformed him, and it was like looking in a mirror.

It made me...one of them?

Even his own thoughts felt strange compared to what they had been just a bit ago. It was like listening to someone else, something from further off. The instincts, the urge to mate and rut and fuck and spread, those were loud. Far louder than his own careful thoughts, for sure.

Being a sergal, he was halfway used to that, but this was something that was beyond anything that any sergal had ever felt. While they had the need to rut and could be overpowered by it, that took days, weeks of going without. He had literally just cum, and he wanted to cum again, to shoot his load all over the place, to claim any hole that he could find and just fuck it, fuck it, fuck it.

It was taking everything he had to not thrust and rut and cum all over the ground now, and despite his best willpower, his cock continued to drool all over the place, smearing pre-seed on the ground and wood beneath him.

Gotta think. Gotta think.

"Idiot. How many times do I have to call you that for it to sink in?"

The snarling Kotyavr stood up, walking over to stand in front of him and the other Spermatosaurus. They looked up at her, and he was pretty sure that they were having the same thought.

Female? Breeder?

She glared down at them, showing her teeth, and he realized that not only had she not been affected by the pheromones the way that he had been, but she hadn't even been fingering herself to the show.

He turned his head to the other Spermatosaurus, sharing a message that all males, regardless of species, understood.

Crazy bitch. Time to run.

They darted as one to the side, planning to run into the underbrush and flee from the scene, but no sooner had they leaped off the ground than the Kotyavr grabbed them by the tails and yanked them back.

"Hey, I didn't give you permission to leave!"

Moh struggled, clawing at the ground and pulling at the earth. There was nothing that he could do, though; the construction work that Vasilisa did day in and day out meant that she was a good bit stronger than either of them, and she pulled them back to her with ease.

"Don't you dare think that you're running off. You might be an idiot, but you're my idiot, you horny bastard," she said, running her hand along the former sergal's head. "And you!"

She whipped around, pointing a finger at the white Spermatosaurus.

"If you think that your stupid pheromone tricks are going to work on me, you've got another thing coming. There's more than one legendary cat in these woods, you know."

At least she's angry at someone else besides me, this time.

She pulled them along by their tails, dragging them towards the far end of the clearing. He had every expectation that he was going to end up getting punished to hell and back for being stupid, but the way that Vasilisa was going on about it, he was pretty sure that he was going to be getting the lighter end of the punishment, particularly compared to the other creature. The white-furred one was getting quite the tongue-lashing from her.

And when they reached a big enough tree, she proved him right.

The white-furred Spermatosaurus got thrown over a tree branch like a towel over a shower-rod, and as he hung there, she actually tied a knot in his tail, keeping him pinned in place.

...Wow.

The urge to mate the Kotyavr did not fade as he watched her truss up the natural Spermatosaurus, but it did get tempered with a healthy dose of fear, particularly as, by the time she'd finished, there was no way that the white-furred creature was getting free without a knife. She turned her attention to him, glaring down with massive disapproval in her eyes.

"I told you that all that fucking would get you in trouble someday."

"Mmmph..."

He couldn't speak, but he could look down at the ground like a chastised dog.

It didn't help. She grabbed him by the chin, forcing him to look up at her. She squeezed, too, squeezed hard enough that it made his teeth grind on his tongue.

"You are so lucky that I have some power. I could just let you stay this way, transform completely, but what good would you be after that?"

She could, he knew that much. Kotyavr were all magical to some degree, though just what sort of gift varied from one of them to another. Vasilisa's power was one that could shift one person to something else, though it required a lot of body contact.

He started to grin, only for her to bop him on the nose.

"No. No humping."

"Mmmmmmph..."

"You were bad. You don't get to feel good when you've been bad."

"Mmmph?" Not my fault. Those smells.

"That doesn't matter. You could have not been an idiot."

Now that just wasn't fair. It wasn't his fault that the pheromones affected him and not her. It wasn't his fault that she was completely immune and he was hyper-vulnerable. That was just part of their respective biologies.

But there was no way for him to say that. Not in this form, at the very least. She was the one that was in charge, and he was the one that had to shut up and take it.

She dragged him over to one of the trees. She sat down on the edge of the root, and then spread her legs. Her naked body was still completely on display, letting him see her pussy. It made his cock spurt again, wanting to squirt inside of her, but she put one large paw on the side of his head when he tried to rear back.

"No. I said no, and I mean no."

"Mmmph!"

"You can taste me, but you can't fuck me."

"Mmmph..."

"Do you want me to just punish you, hmm? I can do that. It'd count as body contact."

"..."

"No? Good. Now put that tongue to work. I know you know how to use that better than your dick."

It was a tease, he hoped, but it was a good one. He lumbered forward, nudging his head between her legs and dragging his tongue over her sex. It didn't take long to find her sensitive points, either, and soon she was moaning like mad.

She closed her thighs over his head, and he felt the transformation starting. It was slow, much slower than what the Spermatosaurus had done, but he could still feel it happening. His fur was slowly pulling back into his body, gradually retracting so that it wasn't so fuzzy and fluffy all over him.

He kept up his work, too, never ceasing his licking, always dragging over the best parts that he could find. When he tasted her juices, when he felt her start to drip past her pussy lips, he tried to stick his tongue inside -

"Nope."

She stopped him again, pulling his head back with her legs, pushing him back until the pointed tip of his tongue couldn't even reach her clit.

"You can lick outside. Not inside."

"Nnnnngh!"

"Do you think I want to turn into something like you? No. Outside only, or you'll find out just how sensitive those new balls are."

Grumbling, Moh pushed back into position as she let him move again, dragging his tongue up and down her outer lips, occasionally teasing her clit but mostly satisfying himself with being in contact with her sex. He wished that he could sneak in a taste of her insides, knowing from experience how ripe they were and how tasty they could be when he got her all riled up, but he knew that she'd just push him away again.

And it wasn't like the outside was bad. It just felt like he could be getting more for his trouble.

Lick, lick, lick went his tongue, dragging along her pussy, over her clit, down towards her other hole before coming back up. She continued to drip, occasionally moaning as he licked up her juices, and he continued to change.

His ears were no longer so pointed, his face no longer so smooth. His tail was gradually pulling in, and he was finally starting to feel uncomfortable again on all fours.

Lick, lick, lick, pushing every limit he could, but never stepping over them once she set them. Her legs were too strong for him to push past, and...

Well, it felt kinda good to obey.

His cock continued to pulse and shoot along the ground, his balls staying large no matter how much everything else changed. Even when he was finally able to open his eyes, his cock kept spurting, kept leaking, kept dribbling along. Even at the best of times, it never stopped dribbling, and it never went more than half-soft, at best.

When he felt himself - or at least, enough himself to be able to look up and think properly without the urge to hump away - he finally pulled back from her pussy. Vasilisa looked down at him, one eyebrow raised.

"Did I tell you to stop?"

"No, but you didn't tell me to keep going, either."

"Well, that's definitely more you."

The Kotyavr pulled her legs back from the sides of his head, and he slowly stood up. He was dizzy and more than a little bow-legged with the sheer size of his balls, and he looked down to see the damage.

Extensive, at least in terms of how big his testicles were now. They were swollen to nearly double the size that they had been before this little walk in the woods, and he doubted that they were going to be shrinking down anytime soon. He blushed as he felt his cock, realizing that it was hard inside, almost like he had gained a bit of a feral bone in there to keep him from going fully soft.

"What happened to me?"

"You became a Spermatosaurus," she said, shaking her head. "And there's still some of it in you."

"What do you mean?"

"I mean that you're part monster. It's controlled, however. I've isolated it for the moment, keeping it from getting out of control, as long as you're not stupid. Which, let's face it, you usually are."

"What, um..." He looked down at his balls. "What will it do if I'm stupid?"

"Give you a constant desire to breed, a need to get off as soon as possible, losing your mind when you're around females in heat - essentially, take everything that you had to deal with as a sergal, and multiply it by ten."

...Well, that's not good.

Vasilisa shook her head, getting to her feet and stretching her arms over her head.

"Now, let's see if I can do something with the feral over there...maybe we can make sure that he's not going to be a danger to anyone else."

"Right..."

#

It took a good hour for it to work, but eventually, the white-furred Spermatosaurus managed to get to his hind legs. His teeth grew past his muzzle, and soon, he had a cat-like look to him. Very similar to the Kotyavr, if he was completely honest, but then again, it was one of her favorite looks to force on someone when she was in a cranky sort of mood.

Heavens knew, he'd been made to take that form a few times.

After breaking the fifth paddle that she'd been using to spank their attacker while transforming him, the Spermatosaurus finally gained his eyes. He blinked, looked around, then went wide-eyed.

"I can see? I have eyes?!"

"Heh, yes," Moh said. "How's it feel to see your sex partner, finally?"

The Spermatosaurus looked him up and down, then shook his head.

"Disappointing, actually."

"HEY!"

The End