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Aero awoke hours later, his body sore in all the right ways as his midsection stung and strained with the unnatural stretching and filling it had taken. His legs throbbed as memories of what had happened came rushing back and pooled with the lingering warmth in his gut. He rested among the hyena's, laying against a particular male as his eyes fell to its peeking bestial shaft.

He had named this one “Hugo". The largest of the males and seeming to take charge when Mistress was not around. He had few deformities, or at least outstanding ones. One forelimb seemed about 20% larger than the other and had an additional toe, giving it a more human-like appearance and him a better grip as Aero had learned quickly~

He was an oddly tender brute once you got down to it and submitted. He was the one who had first broken Aero in during the orgy, the first male to fuck him. His shoulder ached lightly remembering the commanding bite that had pulled him to his knee's. Examining it now Aero realized Hugo hadn't even pierced the skin, merely bruised his disobedient bitch before giving him the tender fucking he needed to understand.

Not that the horny bastard hadn't helped himself to Aero more than his fair share during the little welcome party anyways.

He found himself slipping downward, his heart pounding in his chest as his cheeks flush from the compulsion to savour and please his clan mate. His hands gently rubbed Hugo's gravid stomach, admiring the life within. A light sleepy huff of pleasure escaping the beast's maw as Aero slid down, gently cupping the enormous testes of his partner.

He was such a potent beast, his sack already moist with fresh sweat as Aero felt the girth and heft of each enormous fist-sized orb. His face slid downward as he breathed in that intoxicating scent of wild maleness, the musk and sweat making his spine tingle as his tongue found purchase against the plump black scrotum.

He happily sucked on the taut sable flesh, savouring the density of Hugo's fluids saturating the coarse fur and soaking into his tongue before licking upward to suckle on the protruding red tip of his stud's arousal.

Warm watery pre rewarded his effort, a grunt and murr rumbling behind him as the shaft began to expand in his mouth. The length was soon prodding his throat, pinning Aero's tongue as it struggled and writhed against the beastly cock meat and furthering his lover's pleasure as Aero found himself relishing sucking off an animal.

A pang of guilt and worry breached his euphoria with that word, that realization. He could feel that thick hyena cock scrubbing the back of his throat, scrubbing against the roof of his mouth before he pulled back from his lustful stupor and gasped for breath to the agitated whine of his stud.

Aero looked over his messy form, his precious suit torn apart in the fervor of the previous orgy, his skin covered in caked and drying semen. His belly still held a gallon or two of cum from Mistress flushing his insides. That event alone defied natural logic and stirred the blissful warmth in his core. Even worse for him he finally noticed the visible stretch along his midsection, irreversible scars tattooed across his sides that would forever display how much his abdomen had expanded while he was rutted like an animal.

His cock jumped at the thought, the memories and pleasure fucked deep into his core still so vivid as he recalled the unbearable heat and stretching that left him howling like a whore…He dared not try to see what his pussy…n-no, asshole…looked like after that.

The shock, the shame washed back, one last struggled attempt to keep his mind through the corrupting haze of intense sex and pleasure these beasts promised. Aero risked losing himself, becoming like the rest of the loyal hyena harem sluts. And the pull was strong.

He had to escape.

Even pulling his hand from Hugo's drooling shaft was a struggle, not even noticing until now he had been stroking him the entire time. The compulsion to service him and share their pleasure was intense. To taste their fluids and bask in their feral scent as they bond like proper clan mates.

And insistent growl made his legs seize as he tried to rise. An order by his better to continue as the lustful yeen lifted his leg invitingly and exposed the full glory of his unnaturally immense and virile package.

It felt so right to want what was offered. The sight had grown nearly irresistible as his hand caressed the male's sizeable scrotum once more and ran his finger along the swollen sponge of an anus each and every clan member sported proudly. A physical memory of Mistress, like the other marks, something they could never escape after she had shaped their insides to suit her desires.

“J-just…one more" he assured himself as he leaned down and dragged his tongue along his lover's shaft to the blissful groans of his stud.

A final goodbye to his clan mates and the promised life of pleasure he had to escape or lose himself. He eagerly explored Hugo's feral package. It was uneven, unusual. Small uneven lumps of muscle formed along the entire length of otherwise smooth ruby flesh, seemingly rigid, excellent for easy and pleasurable insertion while tugging on a lover's insides as he withdrew.

There was a mild sourness along the salty-bitter tang as Aero's tongue dove into the sheathe and tugged wide the leathery flesh. A nearly imperceptible oil saturated in pheromones seemed to coat his length and pool in his sheathe, it coated his tongue, making each humid breath cling to the walls of his throat as the flavor soaked into his taste buds and refused to leave. It was little wonder they were so staggering, so potent when even the act of letting their cocks hang out drenched the air in their commanding musk and dripped with an excess of their sexual fluids.

He sucked on the loose skin and pulled away, licking upward until his lips soon found the tip, rolling the tapered end along his tongue as he felt his stud growl hotly and throb. A light flex and a fresh spray of his watery pre splashed down Aero's throat, mingling with the existing flavors to make his mouth water. It overpowered his palette and slowly he closed his eyes to suckle like a pup from the teat.

It was so wrong but felt so good, a huge paw rested on his head as he felt his lover jerk and thrust forward shoving his fat mutant dick down Aero's throat. Aero could only gag and gasp from the sudden intrusion. The immense tool sheathed inside him as Hugo let himself get comfortable and Aero relaxed to let the magic happen.

The Hyena's hips began to rock, to pump as Aero gripped the horny brute's thighs. He assisted him in pounding that girthy rod deeper into his expanding throat, feeling each inch scrape the walls of his esophagus as it strained and throbbed with a growing warmth and pleasure.

Aero groaned as he submitted once more, trembling as another male's shaft ground against his tonsils and found purchase obliterating what was left of his gag reflex. Each thrust ground the dense flavors of beast cock into his senses. Hugo quickly increased his pace, burying to the hilt with a forceful grunt and grinding Aero's snout into the heaving studs bloated orbs before yanking himself out to let his bitch wheeze and taste the stagnant musky air before it began again.

He was growing close, light huffs and grunts as Aero helped support his pregnant gut, easing him deeper until the heaving sack of the beast was ground hard into his face with each squelching slurp. His engorged sweaty scrotum slapping against the helpless submissive human, forcing him to snort the cocktail of sexual juices trapped in the crease of fur and drool as his mind swam in an unearthly fog of sexual stimulus.

He was alerted by a husky groan rumbling from Hugo's throat before the jewels pulled tight, trapping him in the leathery sack as it kissed his lips and pulsed, clenching hard before pumping a warm wash of morning seed into Aero's straining gut as his own neglected length ached on the edge of release.

There wasn't even a need to swallow his morning meal, the stud's cock probing Aero's depths forcing a wash of rich nutritious beast cum into his stomach with a churning gush and sputter. Aero gargled as a mess escaped the pressure and bubbled upward to invade his sinuses to burn and tingle as his eyes watered. The immense paw slowly released, allowing Aero to withdraw at his master's pace as Hugo spaced out each pulse through his waning orgasm to ensure his bitch was fed and properly tasted his seed.

The shaft was still throbbing, still pumping as Aero was gradually forced to swallow until the last mouthful bloated his cheeks, forcing him to stir and savour the taste and texture coating his insides before he was permitted to swallow.

Ropes of the pungent sperm were spat across his face from the beasts softening shaft, his stud seemingly pleased as Aero heaved a pant of euphoria and savored the warmth gently oozing down his dazed expression.

Dollops of seed coated Aero's lips, savoring the exotic flavor as his sexual high rolled through him. He felt as though he had just had a full-course meal. The slight discomfort from the excess of spunk packing his insides followed by the rush of hormones and endorphins leaving his mind clouded with a sensation embarrassingly close to inebriation.

Yet his mind could still focus, even with the shameful warmth and satisfaction he felt from giving himself to his primitive desires he could look towards the exit and think of a means to escape. He could feel a pit in his stomach at the thought, wrought with uncertainty he knew was due to the strange chemicals working through his system and corrupting his mind.

A broad tongue slid along Aero's face, making him gasp and blush as Hugo seemed to take note of his lover's inner struggle.

It was a tender gesture, one that made him smile Hugo offered a paw. He could feel the Hyena slipping his leg between Aero's, no doubt demanding a cuddle as Aero relented with a blush. He gently gripped the offered paw, helping lift his leg and lock it with Hugo's. He could embrace him once more, no doubt the animal just wanted another handjob or something before he passed out again.

Yet it was hard not to smile with how affectionate they seemed to be with their clan mates. Some of their behavior seemed almost human.

“Alright you big loaf I-aAAH!" Aero's squealed, gasping as Hugo used his weight to roll onto his back and yank Aero upward to straddle the large Hyeanid's waist. Quickly catching his breath, Aero blushed hard as he looked down to Hugo, the pregnant male smirking as he shoved his slimy cock between Aero's cheeks, actively hotdogging the stunned scientist as he let out a feminine squeak of surprise.

He felt Hugo shift his paw, spreading his toes before slipping forward to cup Aero's fingers between his furry digits and offer his larger paw for the same.

“Hugo!?" Aero yelped, shocked and confused as the wet cock meat of the beast under him ground against his puffy doughnut. Never penetrating, only teasing as he gingerly gripped the second paw. The large toes hugged his fingers gently to the shockingly soft pads as Hugo seemed to knead Aero's uncertain digits, the grip tender and almost…romantic.

A lustful trill rolled from Hugo's throat, the enormous hyena seemingly offering to let Aero take the lead as he gently thrust and rocked letting the human feel his eagerness. He could feel the gentle tug from the paws, easing Aero upward, enough that he could line up with the imposing shaft, fully erect once more and beating with each drum of his heart.

Aero could hardly process what was happening, a blush turning his cheeks a cherry red as he found himself willfully lowering downward, letting the tip of his studs tapered shaft brush along his rim and slide into him.

“Ah. H-hugo" he hissed, feeling his lover take it slow for once, letting him savour the gradual decent and fullness of the beast's girth filling him.

“Hholy fuck". A sigh pouring from Aero's throat, his own impatient legs letting him descend with an easing slurp until he bottomed out. Pleasure rolled up his spine, throbbing in warm waves with each inch that was slowly fed into him. Each throb of Hugo's maleness seemed to kiss a new crease or wall that made him tremble, made his legs quake from the sensation as his breath grew ragged with stifled pleasure.

Hugo continued to knead, squeezing his lovers palms the entire time, encouraging and soothing him until his entrance kissed the bloated sheathe of the amorous beast. Aero groaned as his heart drummed in his ears, he shuddered as Hugo growled with a pleasured sigh and ground his base against Aero's entrance to smear their sweat and cum along his rim.

He looked down to that confident expression, a hint of assurance and tenderness he could never expect from a wild beast before he anchored his legs around his Hugo's waist and gingerly rose.

They shared a light groan of bliss, Aero's trained anus clenching hard, audibly sucking to keep the enormous hyena cock buried within him. Hugo's paws offered all the support he needed, sliding off 6 inches, exposing a third of the beast's cock meat to the world before sliding back down.

It took little time to get into a rhythm, to lose themselves in the passionate rut as Aero began to rock his hips, engulfing and exposing a few inches of Hugo's potent shaft at a time. Their gravid bellies rocked together, trapping Aero's member between them as the gentle rocking and slaps of their hips gradually grew in tempo.

As Aero would descend, Hugo began to thrust upward, working his lovely human bitch with light rapid thrusts. He was tender, exploring his lover's insides as Aero quaked and whimpered, panting and tensing with each impact of their bodies, each quake of his firm cheeks and wet slap of Hugo's engorged teste's spanking Aero's rear.

“G-gods, it's so good I'm gonna.." Aero heaved, biting his lip and closing his eyes. He burned with shame and yet the reassuring paws held him firmly, giving him confindence as Hugo thrust upward, burying his shaft as he scraped along Aero's prostate.

With his button crushed Aero screamed in orgasm, his back straightening as he gasped and winced. He squeezed hard, his fingers clenching, his insides clamping over the intruder as they fought to keep him in place and only furthered their shared pleasure as Hugo continued to rapidly thrust and dig out Aero's cum slathered bowels.

Each thrust brough a new height of pleasure as Aero released, pouring his seed between them, the hot squirts mingling with each wet thrust and slap as Hugo rocked him in his lap.

Aero's breaths became ragged, light grunts as he rocked, his eyes half lidded as he blushed and continued to ride through the intense pressure in his core. Hugo had never stopped exploring, teasing and easing his lover, never increased his tempo or grown aggressive to find his own release.

It was so confusing, even as he came down from his high and began to bounce once more, looking down to the grinning Hyena who looked so proud to have milked his lover like that.

He hadn't even done it for himself, this wasn't mindless breeding or rut. It was actual lovemaking…

The thought alone made his chest tight, even as he began to ride once more, to feel that intimate warmth and fullness. The afterglow never seemed to totally fade, Hugo's amber eyes focusing on Aero's own as they shared their bodies.

They began to explore one another, as Aero rode Hugo's bestial shaft. As their bodies joined again and again and a sweat grew between them. They learned each sweet spot, just how to make the other grunt and shudder with pleasure. Aero soon knew just when to clench, just how to shift and gyrate his hips as Hugo loved. Hugo found every sensitive crease, every sweet spot hidden in Aero's depths as he helped his lover memorize every inch of his mutant shaft, every intimate bump was finding purchase, the smooth flesh gliding tenderly as it smeared his arousal and stirred the seed still deep inside his partner.

They bred as lovers, equally invested in each others pleasure. Their grip never faltered as Aero was gradually seduced by an animal, his clan mate.

Their rhythm slowly increased, the previous orgasms extending their intimacy. But the pressure gradually built again. The tempo slowly grew frantic, the pair crashing their bodies together, rocking as Aero quaked with each heavy thrust that buried Hugo's pride deep within him. Each strike of his mate's enormous sack a promise of what was within as the heat rose to a peak.

Finally they locked together, Aero slamming down as Hugo thrust, burying every inch of himself as deep as he could within his partner. The rapid warmth blossoming in Aero's core threw him over the edge, a long moan between then, periodic gasps as their bodies flexed, exchanging seed while Aero's midsection grew heavy once more.

Everything was a daze, the two panting as Aero's mind reeled, struggling in some weak way to remind him he sat on a knifes edge of never being able to go back. Their fingers disentagled as Aero planted his hands on Hugo's gravid belly, rubbing the surface affectionately to the audible pleasure of the pregnant male.

“Wow...I-Eagh!" Aero shouted, gasping as Hugo playfully rolled to his side and caught Aero with his larger forelimb. He pulled the human close, smirking as his tongue rolled out to glide along Aero's exposed neck in a token of affection.

He moaned and shivered, blushing hard as he huffed “You jerk", smirking as Hugo gave a throaty chuckle.

“Mnn"...a weak sigh escaping Aero's lips as he felt Hugo's length softening, the horny brute finally spent as he withdrew.

His girthy shaft slowly slid out, a light pop before his member was free, playfully smearing cum along Aero's thighs. A slow cascade of rich semen oozed from his freshly-bred anus, Hugo's essence slowly escaping to roll down Aero's rear as he dripped like the pack whore he was.

“Jeeze, Hugo. Trying to put pups in me?" he teased, pressing against the beast's broad chest he received a deep and lustful growl in response. The very thought of truly seeding Aero as his bitch seemed to bring some life back to his shaft. His length pulsed and bloated, spitting the last of his seed along Aero's perineum and thighs as the prospect excited him.

Yet, they both knew who they belonged to. The only pups either would ever bear would be Mistress's and at her discretion.

Aero found himself slowly burying his face into Hugo's neck, inhaling the powerful males rugged scent as he relaxed. Both found themselves drifting, napping just a little longer in an intimate cuddle.

~~~~~~~~~~

Aero did not remain asleep for long, what little of his resistance remained shook him from the intimacy of the embrace. The cave was beginning to stir again and his window for escape was closing.

With the sexual haze momentarily abated he found himself pulling back, pulling from the warm and protective arms of his clan member. It was not an easy task, the more he lingered the more he felt a connection, the more they felt like his family unit.

It was little wonder none of the other animals made efforts to escape. Whatever was corrupting Aero helped him belong here. And the Hyena's behavior. What he and Hugo did…seemed to prove beyond a doubt they were already more than just wild animals.

It hurt to leave, it really did. He felt as though he were abandoning his family. Yet he made his escape, heading up the passageway and towards the open air once more.

It was almost repulsive after so long in the caves, too clean. The warmth of the sun was somehow less welcoming than the embrace of his clan members. He had grown accustomed the humid scent of lingering must and musk saturating the air. The faint light born from torches burning dried foliage to add a dusky tone to the cave's atmosphere…

As he stood in the open panic began to well deep within him. So many things were wrong, he only knew the general direction he came from. He was days away from home and worst of all…Mistress would not be pleased.

Felicity had to have an answer. She could examine him, see to what extent he had been corrupted or trained by the evolved hyena queen and her pack.

He marched on, fueled by worry to the point of delusion. Every shadow looked like mistress, looming in the grasses, stalking him. He could hear her in the night with what meager sleep he could manage.

Her laugh would echo his trail.

The beasts left him well alone, few approached more than a few meters before backing away. It was no doubt Mistress's scent, staining and marking him as the property of a beast they knew better than to trifle with.

He ate and drank so little, a fact that did not escape him as he fled fully aware that he was surviving off the excess of protein that had been pumped into him during his stint in the caves.

The trip was a blur, finally reaching his door and stumbling into the air-conditioned room as things went black.

~~~~~~~~~~

His next memory would be of cool water passing his parched lips. He drank desperately, dehydrated and weak as his head throbbed.

He was on his couch at home, Felicity above him giving him some sort of supplemented water. It was morning when he had arrived. A glance out the window showed the sinking sun of dusk.

“You're awake" she sighed giving him a gentle pet. “What the hell happened out there ?".

“How long…was I out..?" he coughed, feeling better by the moment as she fed him bites of a nutrient bar and caressed his freshly-cleaned hair.

“You mean the 2 weeks you were gone or you collapsing as a dehydrated wreck stinking of sweat and cum?" she asked coyly, raising an eyebrow as she milked a blush from her exhausted fiance.

“Remember that subject?" Aero began, drinking heavily from the supplemented water and finishing the bar in his exhaustive hunger.

A click from the door caused them both to look towards the doorway. The knob turning slowly, a low scraping against the door before it pushed open. A large paw held the knob casually between two toes to manage it.

Standing at the doorway was a familiar giant Hyena, smirking playfully as she slid herself past the slender frame and casually booted the door shut with her back paw.

She licked her chops looking to the weary Aero, glancing over to Felicity with a feral grin. She seemed to like what she saw, appraising the woman carefully and rumbling with a husky growl of approval before turning her attention to Aero once more.

She calmly stood over him, Aero's heart racing as she gingerly lowered her claws to tug and tear away the remaining scraps of his expensive enviro suit.

“F-felicity, help" he squeaked timidly, both humans paralyzed by fear and awe as Mistress's immense shaft began to emerge and drool over the floor and couch with wet patters and splats.

Though fearful of punishment, Aero could feel some sense of jubilation and relief that Mistress had come for him. He was conflicted, even now her claws were gentle, casually stripping him down as she slathered his legs in her sticky lust and wafted her overpowering scent to flood and smother the room.

He moaned lightly, blushing hard as she exposed his swollen needy cock drooling in front of Felicity. She murred smugly, looking to Felicity with a look that read “He's mine now~" and gently hooked his feet between her toes before pulling him upright at the end of the couch.

Aero squeaked from the sudden shift in motion, his face slapping into Mistress's pride as he gasped and quaked finding himself sucking in her fluids and tasting the flesh willfully. He sat on the arm of the couch, his resistance melting despite his diminishing efforts before she pulled from him leaving the horny male to pant in a daze with strings of arousal clinging to his face.

She calmly turned, exposing her flank to him, Mistress's glorious firm rear flagging in front of hims while she slowly lifted her tail. Blood rushed to her nethers, thoughts of how she would punish her naughty pup exciting her to no end. Her beautiful and unnatural canine spade parted her cheeks, swelling and glistening with sweat as a gentle steam wafted from her intense body heat.

The balmy aroma of her feminine sex was overwhelming, Aero's long question of Mistress's unusual sweetness answered as her ruby cunt winked and flexed before him only growing more full and supple by the minute.

He remembered what he had been warned about, of Mistress's feminine parts changing the others. She slowly maneuvered backwards, pressing her glorious quim against him as he weakly rose his arms in defense.

He was much too weak, still exhausted and spent as he merely pressed his palms against that supple flesh, feeling the slickness and warmth as her delicate nectar rolled downward and over her engorged scrotum to soak into that tan band of fur.

His head spun as he tried to resist, his trembling limbs pressing against her gorgeous spade and sank lightly into the spongy flesh enveloping his palms in a luxurious heat. The intense warmth and overwhelmingly sweet and gentle scent of a fertile bitch filled his lungs, mingling with her cloying musk in a cocktail of primal lust overwhelming his senses.

His limbs trembled as her thick flanks obscured him from Felicity, her gorgeous rear embracing him before his arm slid and slipped inward.

He felt the warmth envelop his wrist. A light gasp and sensual moan before the lips flexed, a wet gush of her syrupy nectar sprayed over him, dripping down his cheeks as the ambrosial taste met his lips.

It was intense, the taste indescribable as his mouth watered for more. A light growl of pleasure poured from her throat as she relaxed, letting Aero weakly tug at his wrist trapped in her folds. She flexed, her spade pushing outward like an enveloping maw and sucking in with a wet squik and slurp as he lurched forward helplessly.

A light gasp escaped his throat as he trembled, the insides sucking on his limb as another wash of her fem cum coated his head. Aero's will crumbled with each breath, each taste as he whimpered submissively. He hardly noticed when Mistress relaxed, letting him tug out as he pumped his arm in and out of her perfect cunt and please his mistress as she moaned in sensual joy over her pet's submission.

Felicity was forgotten, not to Mistress, but to Aero. He leaned downward as his free arm caressed Mistress's thighs, squeezing her ample flanks in worship. The tip of her spade met his lips, Aero pulling the soft flesh of Mistress's canine spade into his mouth to suckle and kiss, letting her fem cum pour downward and fill his mouth as she openly gasped in delight from his eager worship.

The next flex was fierce, sucking harder and pulling his other arm to join the first as his face ground against her throbbing spade. Time seemed to slow for him, watching as her hungry feral pussy sucked him in, puling him to the shoulders as he inhaled her sexual fragrance filling his lungs like a drug and graced her lips with a final submissive lick.

Each breath was saturated with her pheromones, his legs went limp as he fell to the mercy of Mistress's hungry cunt.

She seemed to pause for a moment, letting him drink in his inevitable future, feeling for what he would do. She felt a slow lick and gentle kiss to her pussy flesh as Aero's walls crumbled, his heart and body belonging to her as she growled with approval and cackled playfully before sucking him deeper.

Aero could only muffle the next gasp and groan, soon enveloped in a velvet sleeve of warm smooth flesh. Mistress's warm moist quim slowly sucking him deeper, each flex moving him inward as he felt her heart beat against her walls. He struggled for breath as his vision grew hazy, his strained breath filling his mouth with a warm wash of her slick nectar.

His mind and body buzzed, his mouth watering as he wheezed for breath, her sweet fluids filled his lungs and burned painfully. The walls massaged his body pressing against him with the constant beat of her insides and gentle shifting of fluid and muscle around him like a perverse spa and bath.

She was so moist inside, so hopelessly tight. There was no room to shift, every light struggle and flex caressed her inner walls and caused her to flex or shudder. His lungs filled with more and more of her rich fertile nectar, somehow able to draw breath as his lungs burned and body flooded with pleasure in the dark heavenly abyss.

His legs hung limply outside of her, Felicity watching Mistress slowly vore him into her plump feral cunt. Her arousal rolled down his legs, beading off his feet as he gave a few weak and pathetic humps in his bliss.

Aero was welcoming every moment he was used, sucked deeper as he licked and sucked on her silken walls, rubbed as best he could in the welcoming slick tunnel pressing against him. Pathetic squirts of cum escaped Aero's exposed cock, coating his legs and Mistress's spade as she relished in the pleasure of their struggling bodies.

As Aero's mind fell into a hopeless overstimulated bliss, Felicity watched the large beast smirk and look to her. Mistress's paw reaching back to hook Aero's legs, tugging him slowly out with the wet slurp and pop of her fluids against his wet trembling form.

His arms found the air once again, a pathetic whimper escaping her cunt as he tried to hold on and stay in his wonderful sleeve before she slid her toy back in. She groaned with bliss, slowly tugging him out once more, letting Felicity see how Aero struggled to stay within her, how he pleaded to be used for her pleasure in his broken state of mind.

She teased her naughty toy for leaving her, pumping him in and out, leaving him to beg in front of his former mate to be used by his Mistress once more. He wished for nothing more than to be soaked in her sweet fluids and pungent cum as she filled the house with the sounds of sex, of using Aero as her pathetic bitchboy dildo to the wet slaps and slurps of their degenerate sex until finally shoving him in until only his feet remained out of her marvelous spade.

Aero's toes clenched, one final sign of his submission as he clearly came within her, cumming from the oppressive warmth and presence of Mistress's perfect hermaphroditic sex before she playfully used a claw to poke the rest of him in with a slurp and wink.

He slid deeper with each flex of Mistress's insides, the warmth, the light hypnotic drum of her heart and constant wash of fluids massaged deep into his skin lulled him into an increasingly restful state. Her walls no longer crushed him, caressing and keeping him deep within as he rubbed against the velvet flesh entrapping him.

Each breath burned less and less, inhaling her fluids and swallowing each rich mouthful of her sex as her hormones flooded his system.

His head pressed to a barrier of some sort, a light puckering muscle that soon gave way, sucking his head in first before the light pressure allowed it to pull him into some sort of sack. His shoulders made it difficult to proceed, with what little strength he had he kissed along the muscled entrance, rubbing and massaging it to relax as he willfully slid in, wriggling like a worm to help slid past the slurping muscle and into his new home.

It was so warm, he couldn't help but close his eyes and relax as the fluids only continued to fill in around him, bathing and drowning him in his Mistress's sex as something rubbed along his body and pinched his belly. He winced, but the pain slowly faded as he took slow deep breaths, feeling the wash of fem cum and birthing fluid saturate his insides while warmth spread through his form and lulled him into a dull state of blissful half-sleep.

He gently gripped the strange tube that had attached his bellybutton, massaging it as he trailed his hand downward to feel the seam rapidly vanishing as it fused with his own flesh. Mistress's blood soon mingled with his, her corrupt warmth flowing through him as he relaxed and accepted this most unusual and wonderful fate.

All that was left of him was the mess of male and fem cum soaking the floor and upholstery of their shared domicile. The dense stench of mixed and potent bestial sex that would leave Felicity with wet dreams and memories of what she witnessed before Mistress sauntered out the door and back towards home.

She could have rushed, been home in hardly an hour or two. But with her new pet accepting his punishment, she opted to enjoy her trip and savour the sensations of motherhood.

Two days passed during Mistress's return to the den. No doubt her pets would be concerned and needy.

The thought brought some excitement to her maw, her tail flagging slightly as her maleness peeked and dripped over the grass nearing the entrance.

It was not excitement solely for the rutting all her delightful sluts would beg for, to bask in her cum and enthralling scent. She had a surprise for everyone, a new member of the clan~

Her belly hung with a sizeable pregnant bulge, Aero long having grown content in his new home as he basked in Mistress's womb.

Most disobedient sluts were only toyed with, kept inside her for a few hours at most just to shape them with her mark. But her newest pup had been inside her for days, far longer than normal. Even she wasn't certain what the product would be, yet excited to find out how deep her essence had stained her brilliant little bitch.

She was surrounded by her clan as she entered, the cacophony of cackles, yips and whines as they greeted the return of their leader. Submissive tongues danced along her shaft and heavy scrote, eager to lick her clean and sample the perspiration and fluid that had come to soil her pristine form over the days-long trip.

They informed her of the goings-on in her territory during her absence, licking and lapping while she mused that her human pets could groom her more adequately later with their cute little tools. Instead she barked to clan to make room and witness what would come next.

They gathered around her, sitting in wait as she rubbed her gravid belly. She clenched and tensed, her insides shifting as pleasure budded in her core and began to work it's down the vaginal tunnel for all to see.

In the deluge of syrupy cunt juices, light huffs, grunts and strains soon rested their newest member.

Aero found himself in a daze, so content inside of mistress. The quiet, the warmth, the protection as he rested in a dreamlike state. A sudden shift shook him from his bliss. The light pinch of his cord pulling loose like a relaxing viper as a sudden pressure pressed upon his form and forced him outward.

It all happened so fast, falling out head-first onto the damp and messy hay as he wheezed and whined.

His lungs burned, his eyes seeing little but a blur as he heaved and spat until he freed the excess of vaginal fluid filling his lungs and tensed at the searing pain as he was once again forced to breath on his own.

It didn't feel right, it felt as though he could take in so much more than before, each gasp growing longer as he adjusted and whimpered like a pup before pulling himself to his knees hoping to find some semblance of balance.

A massive tongue groomed him, cleaning his fur and wiping his brow before his eyes slowly adjusted to the dim light of his surroundings.

Mistress was looking over him, his ears flattening nervously before she licked him again in assurance.

Scents were so much more vibrant suddenly, even fresh from Mistress's womb he could sample every minute and glorious detail of her natural and dominant fragrance. Every subtle shift in tone as though he could read her emotions, a subtle signal that would escape any human.

With the final lick he blushed, brushing his own broad tongue against hers as his heart skipped and tail flicked with excitement. She seemed excited as well. All of the clan did, all gazing upon him as he saw their glorious admiration and arousal for Mistress's newest pup.

Some sliver of his human mind managed to force itself to the forefront of his thought. “Pup? Fur? T-tail..?" he looked himself over, his arms and body still humanoid, his legs digitigrade like an animals. He had fur, a beautiful grey with spots of black like his clan.

He brushed along his new mane of hair, the brilliant black flowing from his brow to his lower back. He was not longer human, yet not a beast. Something else, something new. An anthropoid Hyena, a refined hybrid born from his mistress.

She brushed him again with her tongue as he moaned, his whine far less human now as he felt a light jitter and happy cackle in his throat.

He embraced her glorious form, basking in her scent and begging for forgiveness that was easily given.

Mistress was pleased, and thus was he. Her arousal was strong, the sight of her new thrall enticing as she growled huskily to him. The meaning was clear, clearer than ever as he flagged his tail and yipped his excitement before slipping downward to lick along her shaft and savour his masters potent lust.

She watched her new pet eagerly licking her clean, gliding his tongue over every inch of her tremendous bestial shaft with a look of adoration and euphoria. He was so perfect to her, bearing all of her traits so strongly. He was truly her pup, and it brought her pride alongside the rich arousal.

It gave her idea's, she ordered her child to sit back. Aero sat calmly on his haunches as she rolled to her back and beckoned the clan to savour and worship her. They excitedly rushed forward, dozens of tongues lapping at her thick cock meat, diving into her messy sheathe and sneaking downward to lap along the crease of her ass and suckle on her spade as he watched.

And finally she barked to Aero, gripping her haunches with her paws and spreading the wide to flex and wink her untouched puckered anus in invitation.

He happily crawled forward, the sight of her perfect sable asshole glistening with a sheen of sweat as he dove his snout into her rear.

He eagerly sucked in the humid air, the heavy stench of her raw anal musk was far denser than the rest of her form. It was earthy, oppressive and raw. Each lungful made his mouth water, his snout so close to the glands each and every one of his species had to mark their territory.

His tongue slide along the rim of her winking muscle, his honored duty to eat out Mistress's ass as he took to the task with fervor.

His enhanced senses left every breath more intimate than he could put into words, every subtle hint that burned his nostrils and teased the back of his throat. Every pheromone dripping from her taint and filling his head with new signals and understanding as his broad tongue slid along every wrinkle and crease of his Mistress's plump musky doughnut.

He licked and cleaned, massaged and suckled until her anus virtually glistened from his worship and affection. A light growl and moan above him praising his efforts, the effort of the clan to please her.

How he could have ever dreamed of leaving such a paradise was unthinkable to him now, to try and flee the majesty of his creator when all she offered was pleasure in exchange for love and servitude.

He pressed his snout against her spongy asshole, savouring the warmth and earthen stench filling his sinuses as he shoved forward. A lewd squelch sung out between the pair, his head soon vanished into her sucking rump as he pressed onward eager to be her toy once more.

His tongue lashed her walls, the air even more humid and dense within her, every breath of her smothering scent threatened to stain his fur in the earthen perfume of her anal musk as he struggled for breath and refused to pause.

He tugged himself out with a squelch, a light pop as mistress yipped and blushed. His fist crammed into her immense winking rosebud as he pumped his limb in and out of her, aggressively fisting his mothers sexy asshole as he gently nibbled along her pucker and sucked on the musky flesh to taste every salty and bitter inch as he made his leader squirm.

He could feel her clench, drawing dangerously close to her orgasm as she groaned in delight, goading him onward to love momma's asshole. He quickly found what he was looking for, with each wet squelch and slurp as he vigorously stirred his arm in her eager boy cunt he pressed hard against a gland that made her shaft jump and pour a shower of her opaque arousal over the clan. He slammed to the shoulder and buried his snout in her anus huffing her rugged scent like smelling salts as he aggressively kneaded her prostate until her insides clenched hard.

She howled in shock as she came, her anus threatening to suck him in as he made out with the wet slurping pucker flexing uncontrollably and assaulted her boy button to give mommy the orgasm she deserved.

The room filled with the loud shower of Mistress's seed, a virtual rainfall of her virility in the cave as he milked her prostate and molested her neglected ebon pucker. He sucked in her scent, her taste. Every howl and moan filled him with pride and joy as he made his mother, his master so happy.

Finally, as streams of her thick oozing seed poured down the den and to the other nests she seemed to calm down, her breath ragged and tail flicking hard enough to nearly knock Aero over.

He slid from her beautiful boypussy, smiling as he and the others gingerly licked the seed from her panting form. Mistress crooned, her expression blissful and approving as she beckoned her pup upward.

He happily obliged, walking to her chest, rubbing her cum-soaked fluff as she pulled him into a gentle embrace and lapped at her pup grooming him lovingly before resting him on her chest as her immense shaft prodded his own vulnerable rear.

A husky and playful growl escaped her throat. It was time to fulfill his duty and carry her pups like the rest of the clan.

Aero trembled with excitement and lust. As he felt Mistress's enormous cock begin to slide into him, each pump flooding him with the remains of cum and a new wash of pre. He knew he would never want to leave her side again.

Felicity sat at her desk, her eye lids feeling heavy with the weight of inadequate sleep.

She had not been sleeping well since the scene a week ago, her feelings a mixture of embarrassment, arousal, shame and fear.

Whatever that thing was, it wasn't natural. She had examined the residual fluids. The samples compared to that of a normal hyena specimen was equal to comparing a man to a chimpanzee.

That thing that did whatever it had to her, invaded her mind and body with its lingering scent. It wasn't natural. It was proof of all of Aero's theories and he paid a most unusual price for it.

Part of her concern was for her lost lover, hell most of it was. But also for the implications of these changes. Had anything else mutated? What did this mean for the local ecosystem and potentially the world?

She had been obsessing over charts and data for hours, only the warm bitter rush of caffeine from her espresso able to rouse her mind as she sighed and flicked at a fresh spreadsheet of data.

She was no closer to solving the phenomenon than when she started. She had a grasp of it but without the data the megacorp purged of their pollutants and projects she was working blind.

As Felicity took a deep heaving sigh, an odd scent teased her senses. It was familiar, wild yet pleasant and enticing.

Her heart raced in instant recognition, yet as she stood that thought dulled. Her alarm became curiosity as she saw a shadow at her door.

She found herself moving forward, a few more breathes and she felt blissfully lucid and calm as she sauntered to the door believing beyond that frame were the answers she sought.

“Oh darn. She locked it" a familiar voice chimed as her heart skipped. Aero!

“I don't have a key. Not anymore anyways" he sighed. “looks like she hid the spare as well. Guess I shouldn't be surprised".

She quickly grabbed the latch, letting it turn and click as her guest gasped outside.

The door opened slowly, teasingly as though expecting a trap. Standing in the doorway was a male both familiar and completely alien. His long thick mane of fur rode down his back as he smiled to her. He was nude, only the soft grey fur covering his body protecting his dignity as he happily sauntered in and embraced Felicity in a hug.

“Felix! I was worried wouldn't let us in!" he giggled happily, his expression and tone like that of Aero, but what…? Wait, us??

She paused as the oh so familiar herm Hyena happily stepped inside. Just as she did last time she closed the door, confident in her commanding presence as she all but claimed the home as hers by existence alone.

There was little time for chat. A hand embraced hers, the happy anthro gleefully cupping her palm and giving her a gentle kiss, cautious with his new snout, he embraced his lover before leading her to the edge of the couch.

“I have great news, Felix. Mistress has decided to make you part of our clan!" he stated so excitedly. Felix, the pet name only Aero had ever used. Even now something about him screamed to her he was the same man she had fallen in love with, if a bit furrier.

“Wait, clan?" she uttered before Aero stepped forward, cupping her hands and easing her to relax. Mistress moved forward until she towered over the voluptuous female. She radiated with heat, her enthralling scent already weakening Felicity's resolve and resistance as she nearly trembled at the lustful beast before her.

Mistress wasted little time with her new pet, the female so cute, so enticing. Felicity soon found herself on her back, playfully pushed onto the couch as Mistress stepped over the furniture, straddling it as her underside loomed over Felicity, obscuring the light and basking her in Mistress's vitality.

She was left speechless, trapped under the massive and endowed Hyena. Trapped with her heat and staggering sex as a wetness pooled in her nethers from the domination already worming into her mind. Every breath assaulted her instincts, staining her thoughts as Mistress growled bemused above her and Aero continued to gently rub and knead her hands and arms in assurance.

The tip of her gargantuan cock was peeking out from that black leathery sheath, the fluids pooling around the loose skin and dripping over Felicitiy's thighs as her feet pressed against and sank into the engorged scrotum of her captor.

Aero's limbs pulled from hers as she began to calm in a haze of confusion and staggering arousal.

A light sound of lapping, gentle strokes of fingers through fur drew her attention downward to where her boyfriend had gone. Already Aero was eagerly kissing and sucking on his master's scrotum, lapping at the collected sweat of a long journey and pressing his palm into the tuft collecting her fluids as she rumbled with pleasure.

“Look at her cock, Felix" he growled hotly, sliding his head past her thigh, lapping as the loose skin, sucking on the oily sheathe and exposing the expanding dick flesh as his fingers slipped past the loose skin and stirred playfully.

“It's so huge, so perfect. And look how big she made mine~" he stated with so much twisted pride. An impressive boast, his own fully erect bestial cock was easily a foot long and slick with arousal from servicing his beautiful and potent queen. Aero was average before, now he packed an animal dick the size and thickness of her forearm.

“The whole pack benefits from her love. And from each other. You'll never have to be alone again, Felix" he cooed unnervingly, so thick with love for her and Mistress yet twisted and inhuman.

His tongue grazed along Mistress's tip, kissing along her urethra and collecting a thick glob of her cum on his tongue before swallowing in front of Felix. The words seemed to excite Mistress further, her lovely little boy bitch proud to accept his position and sell her perfection to others.

His cock slowly grew limp, soon hanging out fully extended yet lifeless and dripping his own seed. It was a silent submissive acceptance of his place. A sign of his endless arousal and admiration for her as he milked her growing shaft and bathed his girlfriend in Mistress's pungent arousal.

Mistress's shaft pulsed and throbbed, the affection and worship milking her length until a constant stream of her hot steamy pre poured over Felicity, drenching her chest and belly in the odiferous love of a feral monster.

The slick fluid clung to her clothing and soaked into her skin as she trembled and groaned. Every breath drew more of Mistress's controlling pheromones into her body and quelled her defiance.

Every minute brought greater arousal, the massive cock soon swinging above her, soaking her in a shower of lust as Aero gripped and massaged the turgid shaft cooing his worship of his loving mistress and his eagerness to share it with her.

Felicity hardly felt the claws soon dancing along her skin, her heart pounding in her ears as Aero stripped away her dignity and exposed her sopping wet pussy to the enormous futanari beast. Her legs were gently parsed by Mistress's immense jewels as the wash of fluid only grew more intense.

She could feel the rumble, the confident growl asking her if she liked what she saw. Her breath was ragged, the warmth soaking into her had reached a peak.

It was insane to think she would want an animal to fuck her, but god did she love those thick orbs pushing her legs apart as a cock longer and thicker than her leg was kissing her cheek. She felt like a bitch in heat as her arms gently draped over the immense slickened tool, hugging it like a lover as she felt Aero's paws guide her lips to the tip to suck and swallow.

The heat of Mistress's sex poured into her. Her tongue dancing along the lips of Mistress's cum slit as she eagerly sucked and swallowed each rush of intoxicating lust that violated and stained her senses.

Aero's hands caressed both of his greatest loves, ensuring the pair enjoyed every intimate second together. He cupped Felicity's ample breasts, helping them to hug their master's shaft. He caressed Mistress's immaculate length, sliding down to run his tongue through her sheathe and tease the sensitive flesh within as she heaved light yips and cackles of approval.

Finally an almost human-like groan escaped Mistress's onyx lips, her cock throbbing as her orbs pulled tight. Her maleness churned, flexing as it swelled and stiffened further. Felicity gagged and strained when the first load of dense bestial cum hit her throat, the immense load erupting like a geyser from Mistress's productive jewels.

Mistress's seed poured from the Felicity's nostrils, the pressure and volume unstoppable. She gargled her new lover's dense seminal fluid, each warm sticky load forced into her stomach from the pressure alone as it dribbled from her lips and poured in thick strings over her sumptuous body.

The mess was ground into her skin, each load followed by a light thrust and pump to drench Felicity in a shower of her new master's fragrant seed before her lips would meet the tip once more. She greedily swallowed each excessive mouthful, savouring the constant flow and mess that bulged her throat and spilled over her body while mistress ground the stink of her potent seed into her new loyal bitch.

It was only when a whimper of strain escaped Felicity's desperate lips that Mistress pulled away, her throbbing shaft spitting a wash of cum over the groaning woman. Her mind spun from the hormones and heat as she held her gravid stomach filled to its limits and yet wished for more of Mistress's wonderful love.

She watched in her daze as Mistress stood at the end of the couch, slowly turning as she witnessed the herm's familiar spade engorge once more.

She pressed herself against the couch, waiting for Felicity to willfully take the first step as the addled woman pressed her feet against the spongy lips. She could feel their luxurious silken texture, the slickness and heat that had engulfed Aero poured into the soles of her feet.

She watched it wink eagerly, drooling her syrupy nectar before she gingerly dove her toes into that welcoming sleeve.

Mistress almost purred at her pet's compliance, slowly tugging her in with each flex before her knee's slid into a tight and moist heaven hugging and massaging her form.

A gentle kiss on her cheek drew her to Aero, his expression one of unmitigated happiness and love.

They kissed again, their hand clasping and fingers entwined as they shared the taste of Mistress between them.

Their hearts raced as he helped ease her deeper into their queen, purring his love for her between breathes as his new long and broad tongue explored her throat and entwined her own.

His embrace never faltered, assuring her everything was right, everything was perfect until finally their kiss was broken by the lips of Mistress's feral sex closing around her.

Each breath hurt at first…burned before a soothing warmth and weariness enveloped her.

Her feet found purchase against some sort of muscle, a wall as she dipped her toes in again, feeling it clench and suck her inward until she was comfortable, curled in an embracing and soothing space filling with fluid.

A light pinch stung her belly before her mind drifted into a peaceful sleep.

~~~~~

For years no one would know what happened to the pair. The only evidence seemed to be some form of intrusion and an excess of fluids over their couch and floors. Something had seemingly simply picked them up and carried them off.

Like many of the Savannah's great mysteries it would go unsolved and slip into rumor and myth.

But far away in a deep and humid cave. A pair of anthro Hyena's blissfully kneeled facing each other, their hands clasped together as they kissed and groomed the massive tool of their mistress between them.

Their Hyaenid genitals rubbed together, one an immense red shaft, the other a thick black leathery pseudo-cock. Both under pregnant bellies heavy with their Queens pups eager to greet the world.

The next few decades would bring great changes to the world. First merely rumor, then factual encounters with a new intelligent humanoid race of Hyena's that would make the Savannah their own.