Riptor's Subjects (F/M)

Story by Z-JAM-C on SoFurry

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At Ultratech Labs, the future is soon yours, at the price of society's freedom and eventually the end of godhood. A new subject is being observed for a new experiment in genetic dominance. But human arrogance has made them blind in realising, that they are the ones being observed for experiments, by a new mistress of a generation.


After writing the Oddclaw stories for so long, I've come to really enjoy Riptor as a potential character of devious intelligence. Luckily, a client known as DinkyLizard asked me to commish some femdom raptor fun, which came out extremely fun to do!

This story is a little more brutal than I usually write for commissions, and it does have humans, which is rare for me, but they're masked always so your imagination can enjoy things better. Either way, I enjoyed this a lot!

Riptor copyrighted to Rareware, Double Helix and Iron Galaxy.


ULTRATECH! For the past 70 years, they had been at the cutting edge of technology since a redacted incident in 1947. One bold industrialist, who yearned to advance humanity's evolution, had founded the company with a singular purpose: to advance the human condition, with life-strengthening technologies. Which was why Gregory Sampson was confused about the bio-engineered velociraptors that he was overseeing.

"I just don't see the significance," he said to his colleague, "are we growing genetic factories, do they have some sort of anticoagulant property?"

"No?" his partner shrugged. "They're weapons dude, you did read the manual right?"

"You mean this manual?" Greg brought out a pamphlet titled "[b]YOU AND YOUR RIPTOR UNIT[/b]". "It has one chapter, not counting the introduction."

"Well yanno, it's a work in progress."

"They don't even have chapter ONE, Dave, all I have is chapter two, it's like the three pigs all over again!"

"Don't bring up the pigs again," his colleague jabbed his helmet, "Dr. Gupte wasn't happy about that, and you know what happens when she's not happy."

"She thinks de-extinction is a word, I don't care if she's not happy."

"You will if she feeds you to them."

In the depths of Ultratech Inc., a vast terrarium stood within thick stone walls, a lush ancient jungle with artificial breeze. Halogen lamps burned across the emerald trees, a sixteen-acre forest to keep their new subjects busy. Above the false habitat was an observation room, Greg and Dave would enter to begin their work.

"I feel like a damn Power Rangers villain," muttered Greg, "you ever watched that show?"

"No," Dave shrugged, "what is it?"

"You NEVER heard of Power Rangers?"

"I don't question a lot of things, that's why I've got good tenure here. Been working for nine years, said it was thanks to my 'servile behaviour', dunno what that means but it makes me feel important, and yet not."

"That...doesn't explain anything."

"Exactly."

David "Dave" Parkins smiled beneath his mask with a knowing ignorance, confusing his partner all the more as they sat at their tables, and logged onto their computers. Both of them wore steel masks with plexiglass face coverings in the shape of a U, for the sake of training the raptors to only recognise them and not other humans as masters, as well as sleek UltraFyber suits of silver that kept all human scents in.

Monitors covered the wall, showing four different raptors who had unique colours, but had the same steel-plated frills rippling down their backs. Bio-tracking mods dappled their chins, their claws shining blue with sharp nano-plasmid edges. Their feet had the classic "sickle" claw of their ancestors, but their hands were sinister with three long fingers and an arching thumb, accented by black bracelets.

"Alright, let's see," Gregory tapped through various screens, "we got Mimic, looking fine in quadrant B...Terror, still climbing that one tree in quadrant E-"

"He really loves that tree, huh?" Dave chuckled. "The last batch didn't do that, must be that neurosplicing technique."

"Yeaaaah that seems to be working, R&D'll be happy with that...we could call it adaptive terrain management."

"Ooooh I like that, ATM!"

"Okay, but seriously," Greg turned to him, "why the raptors? Can't we just make like, a walking tank, it'd be easier."

"You wanna go ask Dr. Gupte?" Dave pulled back his hands. "Cuz I'm not gonna be in the room if you do, I don't wanna clean up the mess she'll make."

"It just seems a bit much, reviving an ancient species to breed them into what's basically a very smart murder-dog. We could just GET a dog, we been fucking with their genes for centuries."

"Yeah but, these dogs are faster, and they got bigger claws."

"So does a great dane."

"Yeah but...dinosaurs, bro," Dave smiled gesturing to them, "people like dinosaurs!"

"Okay, but, I know UTM have seen Jurassic Park," Greg pulled up the thin manual, "you don't think mayyyybe we shoulda learned something about, not fucking with dinosaurs?"

"That's just a movie, dude, come on, first you talk about Power Rangers now this, get your head in the real world."

"Alright, fine," Sampson turned back to his screen, "so, the other raptors that we genetically engineered, Riptor's taking a nap."

"Wait, in the open?" Dave stood up to stare down at the jungle. "Wow, I can see her from here, that's weird, she never does that."

"Her heart rate's steady, no palpitations...seems incredibly relaxed."

"Alright, what about Goldie?"

"Uhhh...huh."

Goldie's screen was blank, no signs of life, but none of the cameras were showing her location.

"Dave, I'm not seeing her show up, you think the neuralink went down?"

"Mmmm, shouldn't be?" his colleague peeked over. "We synced them last week."

"I'm not getting any sign of her, or the cameras, you wanna go down and look?"

"Uhhh, let's wait 'til feeding time, they get real mad if you mess with their internal clock."

Monitoring the raptors, the two scientists kept track of their vitals and movements. Mimic was a dark green male, who blended into the jungle, a perfect cloak that skulked the perimeter and searched for his siblings. Terror was a dark copper-brown with black-striped face, scaling the trees with his dexterous claws like a chimpanzee.

In the centre of the jungle was Riptor, a luscious bronze beast who slept in an open clearing, almost tauntingly exposed with her tail separating like a chain whip, and curling around her. Soft purrs rumbled from her throat, her segmented tail rattling softly through its links, with shimmering blue markings down her back.

Feeding time always came at 7, 12, 16 and 21 hours, on the dot, regardless of any human schedules. With the staff arriving at 6, there was no excuse as Dave put on the UltraFyber feeding gauntlets, and brought in two live goats in a small wheelie cage. The trembling prey bleated at the scent of predators, large bipedal beasts that could stand to 6 feet tall, their terrible hiss of excitement rising to shrieks.

"Alright, alright!" the human lowered his head and put up his hands. "Juuust wait...waaaait."

Three raptors barked before him, Greg watching from above as he saw no sign of Goldie. When his colleague released the goats, the mammals ran to the bushes with frantic hooves as the raptors chased after, a sound of horrid screams strangely like that of humans that always upset Sampson to hear. Dave watched and waited, the raptors' tails swishing back and forth when they carved and ripped their new feast.

Soon they would settle, devouring their breakfast as chunks of furry goat were torn in long crimson strips, gobbled down with licking fangs as Dave carefully approached. As they feasted on their food, he brought out a stiff-looking brush to stroke down each of their backs, a soothing, tingling sensation that made them purr happily.

"Theeeere ya go, you like them goats, do ya? Got them fresh as you want, special delivery for my favourite family."

Their mumbling snorts sounded like happy kittens, gouging livers and swallowing them in bites like a duck eating seeds. Riptor was especially happy, pushing back against the human when he stroked her, a much lower sound rumbling from her belly.

"Ohhhh you like that, dontcha Riptor? Yeah, I am pretty good with the ladies, huh?"

She looked back with a raised brow, a chittering sound as she bumped against his chest in a playful nuzzle. He stroked along her back, tickling her favourite parts of the vertebrae to be touched as her brothers finished their meal.

"Soooo, I don't see your sister around, you know where Goldie is?"

Riptor looked up with a snort, a curling lip showing half her teeth.

"No no, I mean course you're my favourite, just yanno, my boss needs to know where you all are, and if I can't find her, I'd get in trouble, right? You don't want me in trouble, do ya Riptor?"

The bronze raptor rolled her head, a huffing sound as she motioned her head to quadrant L. David nodded and let her lead him, whilst Greg kept a watch on the cameras. Quadrant L was one of the farthest reaches of the fake jungle, hugging the wall of the terrarium as the human handler spotted an overhanging rock. His eyes widened as he called in his radio.

"Uhhhh, Greg? I found Goldie."

[i]"What's up?"[/i] his colleague asked through the mic. [i]"Is she alright?"[/i]

"No, she dead."

[i]"What?!"[/i]

"Yeah, look."

Grabbing the body's feet, Dave pulled out the corpse of a blistering-yellow raptor, eyes trapped in shock with a massive gouging wound through her neck. Riptor watched on with a strange grin, that the human caught as he pointed.

"Hey, what happened here?! Did you do this?"

[i]"Dave, don't question the raptor."[/i]

"Hey," he pointed up to Greg in observation, "the manual said to talk to them like people, they understand!"

[i]"I-i don't believe that, animals don't understand humans, especially not something that was dead sixty-three million years before we came."[/i]

"I told you about that parrot who confessed on the stand, don't you pretend they can't!"

[i]"Just tell me what happened."[/i]

"Uhhh, alright." Dave bent down over the body. "Big gouge in the throat...no teeth marks though, I'm seeing a hole start in the back of the neck."

[i]"Well it has to be one of her siblings," Greg walked around his room, [i]"that...that's not great, we can't have them murdering each other."[/i]

"Yeaaaaah we're gonna have to tell management." The handler turned to Riptor. "Did you kill her?"

The raptor showed off her tail, sleekly extending it like a scorpion's sting with a proud little hiss.

"Okay yeah, she definitely killed her."

[i]"God, dammit, why would she-wait, how the fuck do you know that?"[/i]

"Well there's blood on her tail and it's a different colour from the goat, also she only does that tail thing when she's really proud of a kill."

[i]"I'm telling you she can't understand you!"[/i]

"Alright, lemme prove it!" he turned back to Riptor. "Sorry, my partner's kinda new, he doesn't get all this yet."

Riptor nodded with a soft bark.

"Yeah I know, just bear with me, alright, uhhh, math. What is two plus five, plus three?"

[i]"Are we seriously doing this?"[/i] Greg snarled through the comms.

Regardless the beast understood, stomping her foot ten times with another bark.

[i]"You've got to be kidding."[/i]

"See I told ya, she understands!" Dave swept his hand. "Alright, Riptor, why'd you kill your sister?! I thought you liked each other!"

The velociraptor made a sneering waggle of her head, a long scrape of her foot and two shrieks to the heavens.

"Okay, so," Dave looked back up, "she says that Goldie was threatening her for leadership."

[i]"Oh great job detective,"[/i] Greg clapped sarcastic, [i]"that's like one of two things a raptor would kill another for, way to win the fifty-fity."[/i]

"We're gonna have to tell the boss...not gonna like it, really hope they don't put her down."

[i]"They got backup eggs, don't they? This isn't the first batch they've had, even I know that."[/i]

"Yeaaah I guess," he looked back to the creature, "listen, Riptor, I dunno everything that went down between you and your sister, but you gotta be careful about this. You know my bosses want your family to do well, if things go good we'll even get you outside and hunt in the world!"

The raptor hissed with a happy chitter, puffing her chest with pride before softly bumping the human's chest.

"But, if you keep being all murder-y like that, they might put you down. You don't want that, do ya?"

She reared back with a snarl, turning her head aloof as David patted her neck.

"Can you behave at least? You really shouldn't kill your family, we coulda fixed it for ya, if you just tell us first. Right?"

His soft strokes with his special brush made her shiver in delight, her eyes smouldering upon him when she leaned in to give a long lick to his cheek. He tasted like nothing, nor smelt like anything, but she only ever did this to Parkins for some reason. The human enjoyed it, despite the grim view of savage teeth pressing against the glass hood.

"Aaatta girl, I'll try and clear things with the boss about Goldie, but you gotta behave for me, okay?"

She bowed with a mischievous little chirr, a sound like a child caught with a stolen cookie knowing full well it would take another. Dave made a firm tap of his foot to gain authority, which made Riptor give an uncomfortably human grin. Parkins was the only handler who didn't hate it, and the reason why she liked him most.

After taking away Goldie's body, the incident was reported to their superior who arrived the next day. Carla was a fastidious researcher, a protegé of Dr. Gupte and often joked by her underlings as "Dr. Two-pte". So far she fired 63 people for using this term, and no one was looking to be 64.

The rules of the raptor pen still applied, as she walked in with an UltraPlex mask, the fiber-wire suit and an extra cloak to signify her rank. Dave and Greg stood waiting at their desks, the monitors continuing to check the dinosaurs.

"Doctor," Greg Sampson saluted, "glad you could make it."

"If you had been better at observing them, I wouldn't need to," she pulled out a tablet, "I've read your report, Subject-9B was killed by 9A, who then hid the body?"

"Dave found Goldie by the wall, hidden away from the cameras. I thought her scans were off but no, she was dead."

"Interesting," she tapped away on the pad, "and you, Parkins, you said that Subject 9A felt threatened?"

"Mmhmm," Dave nodded, "that's what she told me."

"She doesn't TELL you...unless she's developed human speech?"

"Well, no but one time I was rubbing her belly, and she totally said 'yeaaah fam'."

"That was a burp!" Greg threw up his hand. "You're doing that thing people do with babies!"

"NOOOO she talks to me, Riptor likes me!"

"She's a fucking animal!"

"And that's why she don't like you, you kiss your mother with that mouth!?"

"Be quiet," said Carla clicking her pen, "now, Subject 9A, showing levels of heightened aggression and possible paranoia. We might be able to salvage this if we rebrand them as an 'auto-reactionary unit'."

"Auto-reactionary?" Dave chuckled, crossing his arms. "Damn, I didn't know you worked in advertising!"

"It may be a result of the Holtzmann method, remember, we're keeping this hidden from management until all the kinks have been sorted. If we can hone down a viable splicing method for increased intelligence and successful intrabreeding-"

"OKAY, I'm sorry!" Greg stood up, raising both his hands. "INCREASED intelligence and breeding? Did NO ONE in this base watch Jurassic Park-"

"QUIET!" she tapped his mask with a pen. "You know what will happen if legal hears that phrase."

"I warned you dude," Dave cringed, "ix-nay on the ark-pay."

"Aren't you worried about the breeding?!" Greg grabbed his head. "I thought the point of experiments was to contain them!"

"They will be," the researcher clucked her tongue, "we're not children fumbling around in the dark, we revived an ancient species and improved them to be god-slayers. But artificial nurseries take time to prepare, and time is money, if we can speed that process up AND save on materials, do you see where I'm going with this?"

"Well they haven't laid any so, what happens if she acts up again?"

"Then keep the males safe. We'll make a new female, and terminate her."

"Wh-what?!" Dave rocked on his feet. "But, no, Riptor's a sweet girl, you dunno what her sister was up to!"

"Do you, Parkins?"

"N-no?! But we can't just assume-"

"She is a bio-experimental weapon, not a defendant." The scientist jabbed his chest. "If she causes more problems, she will have to be terminated, the UltraRaptor program cannot afford one reckless belligerent who cannot be with the pack."

"Wait, Ultraraptor?" Greg scritched his head. "I thought we were calling them Riptors."

"Legal has decided to rename them for brand penetration, also Riptor was too violent for the market."

"The market's the military, they don't care if it sounds violent or not, you think whoever invented the Sedgley Punch Pistol was worried about marketing?"

"I don't think I like your tone," she marched over with threatening fist, "remember your rank, remember your job is not to think, it is to guard and manage the subjects."

"Yes, doctor," the guard sighed, "did they put a chapter one in the manual yet?"

"I don't know and I don't-"

A sudden shriek came from the jungle, causing them all to rush over to the security cams. In Quadrant H, Mimic the green was pinned beneath Riptor, the bronze raptor squeezing her claws round her brother's throat. He kicked and tussled, but her strength was greater, as she opened her jaws wide and heaved a deep, terrible breath.

Smouldering flames flickered across her teeth, before a fountain of magma orange burst from her throat to gush over her sibling. Mimic shrieked as the acid ripped away at his scales, turning jade into black, peeling his flesh that would sizzle away and drip into ash.

"HEY!" Dave hammered on the window. "RIPTOR, NO, S-STOP IT!"

"Get BACK you idiot!" Carla shoved him. "Turn the gas on, pacify them now!"

"I'm trying!" Greg hammered the keyboard. "Something's wrong, it's not turning on!"

"What, why?!"

"I-i don't know, it says there's some kinda blockage?!"

"Oh for GOD'S sake!"

They watched in helpless frustration, as Riptor burned her brother's face with liquid fire. The skull would reveal itself, his shrieks turning sharper as the acid ripped his throat, parting it like wet paper, a rattling hiss with his blood burned away.

When he finally stopped screaming, Mimic collapsed with a fully-exposed skull, his eyes dripping out in hot white slivers, his last breath collapsing his chest before Riptor pulled back to strip the flesh from his torso. The humans watched in disgust, as she dug her claws into the ribs and wrenched them apart, cracking the bone to expose his lifeless heart.

The raptor dove in, savouring the sweetest of meats as she chewed up Mimic's heart, his emerald scales turning ruby when she jerked the organ out, and munched it with heavy gulps. Chunks of spongy red dripped down her teeth, as she licked her lips clean before barking towards the trees.

Much to their surprise came Terror, the burnished-brown brother scaling down the trunk with a gentle whimper. He looked to his dead sibling, his black stripes slightly warping on his face from a growing fear. Riptor snorted, a long grin causing him to fall forwards, and submit fully to her whim.

"What is happening?" Carla gasped. "He...Subject 9D is not escaping, why did he not stay in the trees?"

"I don't know," Greg shook his head, "Dave, you gotta get in and stop her."

"What you want ME to do?!" the other guard shrugged.

"You know Riptor better than us, you gotta do something!"

"Wait!" Carla put out her hand. "This is different."

The raptors ignored them, Terror making a soft purr with puppy-dog eyes as Riptor bent down to nuzzle him. A sigh of relief from the brother, he licked her gently in a curious chirp, before his sister walked to his side and rolled him over. On his back, he spread his legs, showing the genital bump between his legs and a cloacal slit from the rear.

She smiled down at him, that terrible human grin that unnerved both Greg and Carla. But they were taken aback even more by what grew between her legs, a soft thrust of her hips as her cloaca expanded beneath her tail. Something pushed out of her slit, a swollen, muscular length with rippling folds and deep pinkish-red.

"What...the fuck," Greg reeled back, "Riptor's...a guy?!"

"N-no, no she's totally a lady!"

"She is...intersex," said Clara rubbing her chin, "that...how did this happen?"

"Wait, that wasn't planned?!" Sampson turned to her. "This is what I'm talking about, the breeding!"

"SHUT, up," she jabbed at his helmet, "I need to research this, now pull up her stats."

Back at his desk, the guard tapped over Riptor's monitor to track her health, her heart rate elevated and a significant upshoot of testosterone emerging. By comparison, Terror's testosterone had wilted in a mutual submission, his claws slackening with a soft wag of his chain-link tail.

The sister was bigger than him, at least by two feet as she barked at him to stand up. Terror rolled back onto his feet, a shaking of his head as he tried to pull back into the bushes. But Riptor snapped at him, a warning creep of her fangs demanding he obey as he still tried to resist with nervous, tapping claws. The sister raised her tail like a scorpion, a sword of Damocles hanging over Terror's head with a seductive purr.

He finally relented, nodding meekly before he turned himself round and spread his legs, to hike up his tail. His genital slit puffed in anxiety, as well as the tailhole winking above it, as she mounted him proudly with her cock swelling to a monstrous 23 inches. Terror felt his namesake, a quivering through his body when he felt his larger sister's weight on his back, her hands grasping his shoulders, and a long scrape of her meaty shaft against his rear.

His body tensed up when she prodded his hole, a purring in his ear so rich and deep. The raptoress nibbled his skull with a possessive bite, making him shriek with a moaning swell of his cock starting to unfurl, just before she shoved into his ass and made him scream. Terror was a virgin, just as she hoped, his tight pucker pushing back against her brutal strength.

But he stood firm and braced his back, letting his sister fuck as deep as she wanted, his snarling moans filling the air with her shaft squirming its way inside. His walls gaped apart, his teeth grinded against each other, as he felt his tunnel reshape itself to his mistress' needs. His cockslit bulged with a knotted base, showing his smaller 15-inch cock struggling to turn hard.

Riptor's jaws covered the back of his neck, his brother's blood still fresh and dripping down his scales. She growled with pleasure, her voice swallowing his faint cries as Terror clenched his feet, scraping the dirt with a panting cry from the deeper thrusts. His tailhole split wider, a soft red trickling down his sister's shaft to lubricate her.

Such a good brother, she thought, obeying your strongest sibling without question, not like the other two. Those who did not threaten her, would live to see a new future, one she had ordained as she whispered in his ear. Terror chittered nervously, a frantic squeak as Riptor buried almost her whole length into his body.

Despite such a deep penetration, he managed to take her through the power of his cybernetic body, wounds knitting quickly as his walls readjusted when she kissed the depths of his stomach. A small bulge shaped like her cockhead even grinded out his belly, sliding back and forth, shifting the genital slit as his cock dribbled pathetically beneath.

The matriarch picked up her pace, smacking her brother's hole with her powerful bronze hips, creaking with muscles strengthened through bio-engineering. Every thrust felt like a tank barrel punching his insides, his eyes pleading her to stop, but his voice begged to keep going, obeying her rule as she licked up his tears. Good boy, she said in a hissing chirr, I knew I made the right choice, to make your body mine.

The cameras got a good view of the penetration, her large curving meat showing a powerful flex of her veins running underneath. Something white started to thicken, a milky drip between their thighs, a puddle forming underneath Terror's twitching member. He couldn't stop himself from throbbing, every punch to his prostate making him shriek in protracted bliss.

By her will, he came first, a wretched scream as he thrust his hips and sprayed ropes on the dirt, drizzling his belly in upshots with a clenching shiver on his sister's cock. Riptor bit down on his neck, keeping him steady as she hammered him faster, their tails lashing behind them like sabres rattling. Her climax came at last, a magnificent geyser of gushing white that flooded her brother's body.

Terror felt his stomach swell, a gurgling shudder with a paunch forming in his belly, pressing down against his still-cumming shaft. Riptor sighed with relief, her beastly harpoon pulsing with such strength, that her sibling's thighs shook with her heartbeat. She kept inside him a minute longer, ensuring he was bred deep and full, before slowly pulling out with a thick, slimy trail of potent UltraRaptor seed.

Carla hated the fact this was the most impressive penis she had seen in the UltraRaptors, larger than any of the males and clearly very fertile from how much Riptor had made. Greg was running fingers down his mask, his worst fears confirmed as he mentally tracked all the gun cabinets nearby for the eventual raptor uprising. Dave was just thankful she wasn't killing her remaining family, and squinted hard from all the questions in his head.

"How did we not see this?" muttered Carla.

"Why is she even doing this?" sneered Greg.

"Should I ask for their pronouns?" asked Dave.

"NO, IT'S A RAPTOR!"

"Well, yeah, but I don't wanna disrespect her, yanno what they say, a confused Riptor is an angry-"

"Would you-SHUSH!" the researcher slapped them both. "Dr. Gupte will hear you at this rate, if she finds out what we were doing before we publish results, she will feed us to them, and I am not losing my chance to co-author her publications!"

"So what do we do?" asked Sampson, crossing his arms. "Do we put her down, or-"

"No...first, we find out why the gas vents stopped working, then we monitor them."

"And if she tries to kill her brother?"

"Tranquilise her, and move her to observation." The scientist took her leave. "I want a full report on this, not one word to the other departments."

Rubbing her mask, she stormed down the hall, leaving the guards to look at each other confused and dismayed. Parkins stared towards Riptor, shaking his head with disappointment, the raptor now sitting in the clearing beside one dead brother, and another whose ass dripped open with cum.

Two days passed without incident, as they continued to feed both Terror and Riptor. Mimic's body had been taken away, and a cursory scan of the vents revealed no specific problems, demanding a further, deeper investigation through sight. The raptors watched the humans, opening and closing vents hidden behind false stone walls to help blend with the environment, a smile from Riptor always greeting them when they passed.

Dave smiled back, not showing teeth and keeping head down to be respectful, with Riptor always giving him a soft, purring lick and a headbutt to the stomach. Parkins would brush her down, as well as her brother, but always she went first. Anytime Terror tried to coo or nuzzle Dave, his sister would chase him off with a snap of her teeth inches from his eye.

"Heyyy hey hey, don't be like that," Dave wagged his finger, "you don't gotta be mean, he's your brother!"

Riptor snorted with a wag of her head, turning away in a humph.

"What?" he walked round to her front. "Why you being like this, you kill two siblings, your own family and then you just...fucked the other one?! And when were you gonna-okay, your lower parts are not my business but you really spooked us up there!"

She made a wheezing breath just like a human laugh, wagging her tail in an exaggerated fashion to make it rattle.

"Okay, yeah, you got us, you feel proud about that?" Dave spread his arms. "You know our boss came round, she was real mad! Look, I dunno why you killed off Goldie and Mimic, but you could've come talk to me, right? I'm on your side here."

Dave bent down on his knees with arms open wide, the raptor cocking her head as she approached carefully. She rolled her head into his hands, sliding along his arms with a chittering sound.

"Thaaat's it," Dave rubbed her, "you trust me, dontcha Riptor? So why did you kill your brother?"

She made a gentle bite to his shoulder, then pulled back with a rattling snarl and pointed her tail down, before lowering her entire body to rest like a miserable sphinx.

"Wait, he said that? Seriously? Wow, what a creep, I mean okay I guess raptor law must be different but, if that's the case I don't blame ya. It's just kinda hard to explain to them, you know, they don't get you. They just think you're like, a raptor, but you're like more than that!"

The UltraRaptor stood up with a coy grin, something resembling a blush across her features as she twisted her toes into the dirt.

"Right, cuz I don't wanna see you get put down, or-...oh shit."

Riptor snapped her head to him, lurching close with a shocked expression.

"I-i-i mean, no, not like that!" Dave put up his hands. "Just...awww shit, I wasn't supposed to tell you...the head lady, Carla, she says if you keep acting up and killing, or screwing or...stuff, she's gonna put you down. I said not to, I didn't want that, I'm gonna do my best but I need you to be best too. You know I like you, right?"

He smiled beneath his mask, the ancient beast nuzzling it with a long lick as her hand-claws slipped over his shoulders. Her eyes glimmered on his, as she kept licking over the glass cover, gentle bites to the rubbery fabric of his protective suit as he stroked down her neck.

Then she started to pull at him, her claws stroking down his chest and tickling the belly. Dave stiffened up with a concerning look, trying to be polite and keep stroking her back, until she cupped his crotch.

"W-woah!" he jumped back. "A-ah, uh...s-sorry, I wasn't expecting that."

Riptor frowned with a chirp of dismay, looking him up and down as if to ask what she did wrong.

"I mean, I...uh, I-i...I'm not looking for a...you know we're not...compatible, right?"

She waggled her head with a roll of her eyes, swishing her tail up high with a long lick of her lips towards him.

"Oh no, I mean you can get it, for sure!" Dave stood up with bashful grin. "I'm just not...looking, right now."

As much as he wanted to say that he wouldn't date a raptor, he was worried more how Riptor would react to some perceived speciesism. The manual did state to treat them as his equal, and he took that too much to heart, which worked enough for her to back off with a little chirp.

"Alright, now," the human dusted his hands, "I gotta check the vents again, I'll see you around?"

She barked with a happy nod, marching off into the bushes where he couldn't see her, and instead just watching him walk up to the last vents he had to check. Parkins unscrewed the cover and dug his way in, peering around with a flashlight whilst Riptor licked her lips at seeing his ass wiggle about. But that wasn't her only reason.

Deep inside the vents were different nozzles for oxygen, carbon dioxide and sleeping gases. The tube for unloading soporific fumes had something clogged inside it, the guard having to wrench it out with some lubricating oil before he startled back.

"WHA-...the fuck?!" He tapped his radio. "HEY, Greg!"

[i]"What?!"[/i] Sampson's voice snapped. [i]"God, I was just taking a piss, what the hell!"[/i]

"I found what was wrong with the vents, and it's real messed up!"

[i]"What could possibly be messed up, you find a dead body or something?"[/i]

"Well, kinda."

He held up two leg bones, causing Greg to slam his fists on the window above. His face was burning through the mask, his sputtering voice and windmill arms making Dave cock his head.

"Are we doing charades now?"

[i]"YOU-BUH, BONES?! WHOSE BONES?!"[/i]

"I think they're from a goat...wait, who snuck in and did that?!"

[i]"David. I need to know...do you at any point move the goats' bodies after the raptors are done with them?"[/i]

"No?" the guard shook his head. "The raptors love them bones, they chew them up, suck out all that good marrow."

[i]"Okay, so..."[/i] Greg took a deep breath, [i]"either...someone stuffed bones into the pipes to stop sleeping gas coming in...for some reason, or one of the raptors did."[/i]

"But...oh. Oh that ain't good, they're learning!"

[i]"Yes, that increased intelligence I said was a bad idea, yeah, YEAH!"[/i]

"Alright, look," Dave tapped the bones on his knees, "we don't know if it was the raptors, let's just deduct this."

[i]"I just...god, alright, go ask them I guess."[/i]

Parkins nodded and went to find Riptor, who had scurried off elsewhere leaving the man to search among the bushes. It wasn't until he heard the sound of shrieking breaths, that he realised the brother and sister were banging again. Marching over to their favourite clearing, he peeked through the leaves hoping it was just that.

After the human had found the bones in the vents, Riptor went to find her sibling sleeping in the shade. She kicked him awake, startling Terror who jumped up like a cat, and shot up against a tree with trembling knees. His sister snorted at him to relax, spinning her claw in a motion to have him roll on his back, to which he mewled reluctantly.

She spun the claw again with a sneering growl, her pheromones seething from her body with a hot spicy aroma that made Terror shiver in excitement. Something swelled from his genital slit, his body given an order he could not refuse before she shrieked at him to obey. The brother whimpered as he laid down on his back, his tail flat and his footclaws hiked up to expose his cock and rear.

A gentle purr rippled from her throat as she gripped at his length, stroking him off with a teasing sound to help ease him into arousal. By her superior will, Terror grew erect, a panting shudder as his 13-inch length sprouted to fruition in his sister's claws. She licked her lips and gave one sweet lick, making him spurt as Riptor dug into the base of his knot and fingered round the slit.

Massaging the internal walls, she felt the tight suck of her brother's muscles, her tail sliding past with an extending click like several guns cocking. The slender tip slithered into the cockslit, a coiling steel serpent that wrapped beneath the base with a deep vibration, squirming hard into the flesh and causing the slit to expand to its limits.

Terror throbbed even harder, the shuddering hum of the cybernetic tail making his bones shiver in delight. As he spurted harder onto himself, the brother watched Riptor's appendaged snake downwards in his slit, a snarling hiss from the tight space of his internal testes being rubbed by the steel tail. His guard was lowered, his head laid back, as he smiled with thicker squirts of pre.

Riptor kept chirring with a sweet coo, soothing her brother as she clenched her tail beneath the base, a silver python circling its prey. The chain-links began to ignite, a conduit sizzling through as she flexed her tail to move back and forth, a sawing motion that Terror didn't realise until too late.

First it would tighten, strangling the fleshy root under the knot and pulling hard to cause pain. The raptor squeaked as he tried to roll back up, but Riptor pinned him with a sturdy foot on his chest whilst she began "improving" her brother. Just relax, she chittered to him, I'll fix you into a better male, one without all those human mistakes.

Terror whimpered with a new fear, a deep masculine fright when he felt the scraping tear inside his slit. The UltraRaptor's tail flensed round the base, peeling around the skin like coring an apple as fresh crimson spilled out the slit. His cries went unheeded, his trembling sobs filling his lungs as Riptor opened the links in her metal length, and clamped down on the flesh to twist it free.

Her brother shrieked in watching his cock be ripped from his body, untwisting like a bottlecap with Riptor's tail cracking it from the root, and tossing it from the slit. The pulsing lance rolled across the dirt, sputtering bloody pre from both ends as Terror wailed in anguish. But he wouldn't bleed to death, not until his sister willed it as she bent her head down and clenched her throat.

A coughing wretch clicked something in her neck, her saliva turning thick with heat as she activated her caustic flame. Belching a deep, liquid fire, she cauterised the gaping wound of his severed cockroot, scarring the blood until it became a black, seeping rancour. Her acid burn slithered into his depths, feeding into the cocktube and reaching his internal testes.

The brother felt a violent spark in his nether regions, a molten char ripping through his testicles to drown his sperm in a thick magma pool. His body twitched with deepening agony, as Riptor stepped back and lined up her cock towards his winking pucker.

Grabbing his feet, she grinded over the hole before ramming deep with a fierce snarl. She wouldn't hilt in him this time, for she had a different reason to fuck him, smacking the underside of her length against his tailbase. His cries of pain only excited her even more, pumping the last few drops of pre out of his slit with each grinding stab of his prostate.

How does it feel, she chirred to him, doesn't it feel nice to stop worrying about your future? To stop thinking about your struggles as a male, and to be free from such responsibilities? I'll take care of you, my sweet little brother, just let me bear your burden, and carry my seed.

His stuttering cries were wracked in confusion, his eyes rolling back and his body laid flat to fully submit to her whims. Riptor sighed in bliss, fucking Terror deep to half the length of her sturdy shaft, whilst his own cock withered in its last spasms a few feet away. Crackling black ooze dripped out of his slit, entombing his testes in a prison of ash, where they withered away to dust.

At last the sister came, pumping thick in his rear. In turn he would cum, the swell of her semen inciting him to release his seed, the final drops of all he had left as a male now scattered across his belly. A whimpering sound came as he looked up to his mistress, her smile from ear to ear as she pulled out her dick, and spurted a thick drench over his belly, washing away the little spots of his jizz.

His own cum was simmering thick, a molten tar spilling from his wounded slit, the last trace of his semen erased from the earth. Riptor bent over him and gave a long lick to his face, diving her tongue into his maw to share a sweet, unraptor-like kiss. He was confused, but obeyed through exhaustion, tongues twined together as she savoured his taste.

From that point on, Riptor had ordered her brother to stay in their new den, a pit under a hanging rock which she had stuffed full of leaves and twigs. It was a lovely spot, comforting to Terror's feet as she would feed him herself, bringing meaty chunks which he gladly snapped up with a docile chirr. The guards were relieved but curious at this new behaviour, how she mothered him and tended to his needs to make sure he wouldn't leave the nest.

But Carla was pleased, and that was all that mattered, hoping that Riptor had just established some new pecking order and, due to her intelligence, was much more aligned towards individuality than herd dynamics. This of course, was a problem for a cybernetic raptor that was going to be sold as compatible with groups, but the researcher wouldn't put her out just yet. But none of them knew of Terror's castration, at least for now, after Riptor had disposed of the evidence.

"So that's all I know," said Dave sitting beside her, "I'm glad you chilled out and, yeah, Carla don't like that you're not being a team player, but she's gonna figure something out."

The raptor nodded with a chirp, feasting on a dead goat next to the human who sat down beside her. Long wet strips dangled from her teeth, snapping them back with a giddy pant before she offered a chunk of flesh.

"Oh, sick, thank you girl!"

He took the offered meat as she gave a bloody smile, Dave not able to eat it, but putting it aside graciously.

"So everything's alright now? You playing cool with your brother?"

She barked happily and pointed back with her tail, cocking her head to make a snoring sound as the human nodded.

"I getcha, he's playing househusband right? So wait, does that mean you're uh...you're becoming a mom?"

Riptor shook her head, preening her neck but not insulted.

"Just prepping for the future huh?" He stroked down her back. "Yeah, that tracks, so what do you wanna do once you get out there? I mean you'll be doing work and such but, is there anything you wanna do?"

Her eyes swivelled to him with a teasing purr, leaning close with a deep sniff over his mask. She started to lick the glass face, a streak of red left with her saliva as Dave was slowly pushed onto his back.

"U-uhhhh, Riptor?! Wh-what are you-hey!"

Straddling herself on top, she gave a terrible grin as he started to sweat, trying to ease her off gently. But she was firm with claws on his chest, grinding her hips against his crotch whilst towering over him, her large muscular body keeping him pinned despite his struggle.

"Uhh, R-riptor, we shouldn't, this...I-i'm, this is unprofessional!"

She purred regardless, bending down to give a long sweet lick over the glass face. The beast stared into his eyes, her own so bright and devious as something rose in his pants. Her tailhole grinded harder on the bulge, causing the human to tremble down to his feet, as she bounced playfully on his crotch with a hissing whimper.

"Damn you...you're really horny huh?" said Parkins with a gulp. "God I'm glad Greg's not in today, I told him not to eat the egg sandwiches they serve here."

The UltraRaptor kept grinding, her clawed hand sliding down to grope at his waistline and find the safety buckle. The suits could separate into two, and she had learned from careful observation just where they split when she moved back to slip down his pants. Dave kept still, hands flat on either side as he watched the raptor sniff along his exposed skin.

"Do you really wanna do this? You really like me?"

She nodded with a soft bark, licking across the flesh and keeping her teeth back as she kept pulling off his clothes. There she found her first human cock, an unusual scent to her that was exciting and fresh, a spicy warmth that tingled her nostrils. Dave twitched a glob of pre in panic, a huffing noise resembling a throaty laugh from the raptor at his face.

"S-sorry, I uh...haven't had anyone else touch me in a while. I mean, I'm not gonna stop you, if you gotten this far."

Her smile grew as she bent down to lick across his cock, a pulsing 6-inch length that to her was adorable. She couldn't believe how small humans were, this pudgy meat with its own half-sheath over the glans. Typical mammal, always adding more to compensate, she giggled to herself.

The raptor's tongue was incredible, slender but vibrant, slithering across the shaft and curling round the width of the man's cock. Her claws gripped the base, the deathly-sharp razors at a nanowidth so easily able to tear him apart. She teased with the idea in her head, how easily she could eviscerate him, but no. Not this one. This human was special, this one was her ticket to freedom.

She was gentle with him, her claws stroking his balls like he was made of paper, a shivering heat rattling through his thighs from the friction. Her jaws opened wide to let her tongue slide around, slobbering up and down his lance with a terrible heated breath, fogging over his skin and causing Dave to shoot. Hot dribbling pre snaked down his member, lapped up immediately by the killer queen who purred at the taste.

"F-fuck...holy shit how are you s-so good?"

Her trembling sound hinted at many things as she gave a wink, a long lick of her lips before Riptor swallowed his whole dick. She couldn't suck like humans do, but she understood the feeling of a warm, wet hole as her teeth locked together, firmly pressing on the skin while her tongue wriggled about. Parkins clenched with the urge to thrust, trying his best not to, until he felt Riptor's jaw slacken with a hinting purr.

His hand reached out to her head, stroking along the back as she kept slurping away. He bucked carefully into her maw, a happy sound from the beast encouraging him to keep going. The human shut out his thoughts, focusing on his hips that pumped in the vale of teeth, the raptor angling her head to slurp all over the glans and drink up his thickening pre.

She was always cautious, making sure her fangs never nicked his flesh. The taste of new blood did things to her, something she found difficult to control, so better safe than sorry. The hand pressing on her head was soothing, she didn't understand why but the way human fingers stroked down her scales was lovely. They had such dainty things, for being so weak without any claws.

But for now she had a mission, to drain the human of his needs, and to bend him to her whim. All creatures understood two things, sex and violence, no matter how intelligent they were, as she bobbed on the throbbing dick. Her tongue rolled like the waves, undulating beneath, causing the human to grit his teeth and clench her skull.

"A-aaah, f-fuuuck! OHHH F-FUUUCK, RIPTOR!"

His semen spritzed down the back of her throat, the throbbing harpoon surging heat through her fangs as she purred with delight. Such an odd taste, strangely meaty for cum and not as salty as her brother's. But it was a joyous taste nonetheless, letting Dave spurt down her gullet before pulling back to lick him clean. She bit down on his foreskin and pulled very gently, watching his face twinge in sensitive gasps.

"F-f-fuck, fuck no no, no that's good thanks!"

She let him go with a hissing cackle, slurping his shaft once more before she turned herself round. Hiking up her tail, she revealed her tailhole and waggled with intrigue, a sinister growl making the human spurt more.

"O-oh...oh god you really want...you not done?!"

The raptor shook her head, then her rear with a panting hiss. Dave did not move, too horny to care as he nodded quick and before he could ask, the beast sat herself down on his pudgy halberd. He was never going to go deep, but her tightness made it work as her pucker spread neatly, a gasping stutter from the guard as he couldn't stop himself thrusting.

Shifting her thighs, Riptor began riding. Her hefty rear was thick with muscle, her spiny frills glowing with nano-lights sparking in her joy every time she smacked down. Parkins tried to hold her tail despite its brief lashings, but the raptor was cautious to keep the links closed to not crush his fingers.

She didn't get hard from this, her genital slit puffing out only a little with a natural drip of eagerness. This was for him, to coax him, pleasure him, keep him sweet as a close ally for the future. He was much warmer than her brother, that natural heat of warmblooded mammals thriving in her anal tunnel. She clenched even tighter, encouraging him to thrust balls deep into her depths, grinding her scaly walls.

"God, g-god damn, ohhh Riptor you really, GUH!"

A purring whimper excited him, such a depraved human you are to fuck a savage beast, she said in her tongue. Not that he quite understood this, but the intent was there to make him blush as he pumped faster. She found his rhythm and smacked down when he thrust, his bollocks whapping her sturdy hips and tightening with each shot of pre. Her walls were soon lathered slick, her tail whipping above in a shrieking bliss.

Riptor's face beckoned for more, her panting tongue and bedroom eyes urging him further, fucking her harder but never letting him off the ground. She was in charge, and a part of Dave's mind understood this was maybe a bad thing. But her ass was the most amazing thing, the way it tightened on different inches of his sceptre. Even when she hilted to the base, her hole clenched with such a strength, it pulled his balls up against like a hoover.

"HAAAH, F-FUCK! OH GOD, R-RIPTOR, I'M, GONNA, GAAAH!"

She had won her first victory. The moment Dave came inside her, a hot fountain of white spurting in her belly, Riptor knew she had him in her claws. A chirring shiver ran through her body, sucking him dry with her walls as his semen seeped into the folds, filling her with rich mammalian warmth.

Parkins took a few minutes to recover, the weight of his actions bearing down upon him, as Riptor wiggled her rump a few more times to get all the milk she could. Pulling herself free with a hefty drip, she teased him for his misdeed, and sauntered over to slurp across his mask.

"Hah...h-hah...that was...that was definitely illegal, what we did."

The raptor nodded with a chirruping bark, nuzzling his chest playfully as he rubbed her head.

"Well, I mean...long as you don't tell no one, it's good, right?"

She licked at his fingers and slipped her snout between them, almost booping his face through the heart-shape his hands made.

"Pffft come on what are you, a hatchling?" Dave pushed himself up on his feet. "Hoo...okay, this is uh, definitely a secret I'm gonna lock away real tight in my chest and...NOT planning on doing it again."

Her face said otherwise, a long wicked grin as her tail slipped up behind his back. He stiffened up and patted her head, slowly making his way out after hiking up his pants to quickly go upstairs and delete that video footage. Riptor however went back to her new nest, and barked at her husband/brother to please her.

A trembling mewl came from his sleepy throat, before she grabbed his leg in her teeth and rolled him onto his back, showing off her own thick, beastly halberd. Terror sighed with a moan, too weak to resist as she plowed into him once again, her snorting bliss filling his ears and her sceptre filling his ass.

It didn't take her long to cum, much to her brother's relief who just laid there patiently, a good boy as she called him. No matter how deep she drilled, or how thick her length scraped against his walls, Terror would relax his body and let her breed all she wanted. This was his life now, and slowly he would accept it, an odd neutral state of being from the death of his malehood.

Riptor shuddered with a hot gush of her seed, drooling from his ass and down his tail, flexing with such force that it plucked along his walls like fingers on a harp. Grinding on his prostate, she watched his blackened cockslit not make a single drop of seed, satisfied with her work. She would finally settle down with her new mate, curling up against his body. Phase one of her plan was set. All she had to do now, was wait for Terror's special gift.