Heat Cycle

Story by Korrado-Xan on SoFurry

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A human male discovers he might be getting more than he bargained for by taking an exotic lover.


2012, c. Grey K.

A bronze skinned humanoid pounded over the thick, industrial traction carpeting lining the vaguely vibrating metal deck beneath his feet, cursing as he leaped an upturned storage container that had been toppled into his way. The tall, broad human's black jumpsuit stuck to him with sweat as he skidded around a curve in the corridor of the station and glimpsed the bushy tail of his quarry vanishing around another junction. He rasped out a fresh curse and ignored the stabbing sensation building along his ribcage, baring his oddly flat, white teeth and putting on a fresh burst of speed. The handsome male held his matte black pistol out, held low, his gun-arm jouncing as he sprinted.

His red hair streaked behind him like the corona of a comet, the gentle waves straightening as the wind rushing through his ears caught them. The morphic male running from his was smaller, leaner and quicker, but Van knew that the musteline species didn't have the stamina to keep up a sustained flight. The section of the outer disc of the station's habitat decks was known for its wide, rambling corridors that quite often led to dead-ends and junctions. Their chase was leading them swiftly to one of the reception areas near one of the quick-lift access points. The human male gritted his teeth as his pumping limbs burned, but brought him within 10 meters of the fleeing thief.

"STOP!"

His bellow, unsurprisingly had no effect on the fleeing male, who cast a shadow of a glance back and snarled like a caged cat, skidding into the wide promenade where the quick-lifts stood. With a disgruntled sound the human raised his pistol with its oblong toroid shaped body, one side of which formed the grip and leveled it at the fleeing male's ankles, leading him a bit before pushing the firing stud. A bright arc of bright blue-violet energy hummed from his pistol with a crackle and left a singe on the deck carpeting just in front of the fleeing male. They bristled, their deep brown fur standing on end as he realized the pursuing human meant business. As they both skidded into the cul de sac holding the lifts the growling mustelid slowed just enough and spun, almost being jerked back by his own momentum till the traction carpet caught his clawed feet and he threw himself at the human.

Prepared for this eventuality by many encounters in the past with morphic species that preferred to lunge and bite rather than parley when chased Van switched his pistol to his gloved hand and raised his left arm, shielding himself. The impact of the short, but dense furred male felt like someone had slammed a chair into him, knocking him back and he went limp with the inertia, letting the carpeting and his own ass cushion his impact. He jerked his arm up as the mustelid male snarled and opened his blunt muzzle wide, biting down on his green colored sleeve with a loud crunch. Van grinned inwardly as the furred male howled in pain and rage as half the teeth he had expected to sink deep into the human's flesh splintered or were snapped loose of his jaw and his lips split.

Van snapped his gloved hand up, clubbing the mustelid across the side of the skull, making his head snap back, spraying teeth and blood and stunning the stronger male. The human took advantage of the furred male's moment of weakness to drive his gloved hand into the other's solar plexus, the specially designed half-fingered glove around his hand sensing the impact and changing its molecular structure till it was hard as a steel plate. The nasty little glove was useful in situations where blades were used against him, and it was the equivalent of being punched with a pair of brass knuckles. As the smaller male nearly vomited all over him with the mammoth exhalation of breath his spasming diaphragm snapping upward had caused the mustelid's eyes burned in rage and he snapped his sharply clawed paws toward Van. The slight flare of fire down his ribcage let the human know the breathlessly hissing male had bloodied his ribcage.

Van shifted his hips with surprising swiftness, borne of years of fighting and bunched his leg, powering his ankle-high boot into the smaller male's chest and forcing him back and away from himself before those wicked little claws could be engaged again. The human sighed as he simply swung his stunner back around and shot the furred male point blank with the ironically pretty crackle of blue energy, making his dirty clothes smoke as the mustelid toppled back onto the carpeting and lay still. Van rubbed his jaw where the mustelid male had swung at him before; the bruise would probably blossom within the next few minutes once the adrenaline in his system stopped making him dizzy. He swung his stunner up as the quick-lift door swished open, but lowered it again with a wry smirk as a massive feline male stepped from the cab, gazing down at him with lemon yellow eyes. Van coughed lightly, wiping his sweating brow with the back of his intact sleeve, "Nice of you to join me R'kesh."

The towering K'han's good-natured smirk creased his normally stoic face as he offered one of his massive paws down to the human, lifting him as easily as picking up a piece of luggage, "You seem to have had things under control. The third Darilian gave us some trouble wriggling into an access shaft."

"Yeah, you'd never fit in there, would you..."

Van grinned as his words made the massive feline's ears tint vaguely pink. R'kesh was a magnificent member of his species; the K'han male was almost 8 feet tall, broad as a barn, with gigantic arms and legs knotted with dense muscles. His pelt was a dazzling reddish-orange, slashed with deep black stripes and white highlights. The massive felinoid male weighed over 400 pounds, but Van had never found a need to weigh him, nor would the K'han male have likely appreciated the attempt to try. His people were known for being prickly and aggressive; with a strong sense of ethics and heads so hard they put hardened alloy plates to shame. R'kesh's huge, broad, angular skull regarded his superior officer, with his flare bright yellow eyes, framed by his leonine mane of dirty blonde hair, tied back in a severe braid that dangled down to his mid-back, "You are intact?"

"I think so? Gonna feel me up and find out?"

The massive feline's eyes tweaked at their corners as he rumbled in his people's equivalent of a chuckle, shaking his head, "Kellin would not appreciate this."

"No doubt."

The tall feline allowed his broad, blunt-fingered paws to brush at his senior officer's chest and shoulders, however, "You seem to have teeth on you."

"They were dumbfuck enough to try to bite down on my arm."

The feline's rumbling laugh made his chest expand and contract lightly as he nodded, prodding the collapsed mustelid male none too gently with one of his mammoth, claw-tipped feet, noting he was deeply stunned. The towering feline disdained shoes or boots, as did many morphic species, preferring his own paw-pads and claws for traction and insulation. Van looked to his deputy affectionately, holstering his stunner and absently reaching up and running his the fingertips of the hand at the end of the arm the fleeing felon had tried to mangle. The human male's fingers were a bright, coppery golden-red, almost matching his deeply tanned complexion. R'kesh tipped his head lightly, an odd rumbling purr resonating through his broad chest as he allowed the human to rub his chin.

If anyone but the hulking feline's closest associates and superior officer had tried to do this they would have probably been nursing a broken arm and dislocated shoulder. The K'han male had been wary and disdainful of the human that had been appointed as the constable of the station when their last security chief had retired, but the blunt, grouchy, acerbic and extremely competent human male had surprised him immensely. The feline male had never thought much of the short, pink, bare-skinned and fragile humanoids, but his chief had surprised him beyond measure. Van was afraid of nothing and the countless scars and his arm and eye had attested to his bravery and cunning in battle, so the massive feline had gradually come to respect the human more than anyone else, save for perhaps the commander of the orbital station himself.

R'kesh glanced down at his chief, who stood a head and shoulders shorter than himself and was barely a third his mean mass. The human was nearly two meters even, 6 feet tall and weighing somewhere around 85 kilograms of time tested and exercised muscle. His deep olive complexion contrasted starkly with his red hair and gold flecked green eye. The human's left eye, like his left arm was artificial, his reconstructed eye-socket was the same burnished copper colored alloy with a violet sensor orb replacing his organic eye. The K'han male had once asked the human why he had not simply had new limbs grown or had masked his prosthetics with skin grafts and a bio-organic eye and Van had shrugged and asked simply; "Why? Does that affect how I do my job?".

Vanity didn't seem to be in the human male's vocabulary, which had surprised the feline male. Most humans seemed to be a preening, soft species, but his chief's pragmatic bend had changed his view of the species on the whole. The tall, ruggedly handsome human was all business when his badge and uniform was on, but was surprisingly intelligent and affectionate off his hours. They'd spent almost 5 years in one another's company; Van was one of the only people beyond a few family members and a few close lovers the towering feline trusted implicitly with his life and safety. Van grumbled as he tugged the length of ragged sleeve covering his synth limb and tore it off cleanly just below the elbow, exposing the fact that his techno-organic limb went all the way up to the joint. The smooth reddish-gold alloy of metal and polymer looked as if the human were wearing a glove of liquid copper. The limb had all the function, sensation and movement of a real arm and then some as it was also significantly stronger than his real hand if he wished it to be.

The human looked down at the crumpled form of the mustelid, thumbing his comm unit, "You boys planning on coming to get this hump of organic slag before he wakes up, or do I get the pleasure of stunning his ass again?"

"Sorry sir, we'll be there to retrieve him as soon as we can."

"Eh, just transloc him directly into holding. The medics can check him out there."

"Yes'sir."

Van was about to touch his comm again when the other familiar voice coughed delicately, "I don't wish to be a bother sir, but Kellin has contacted us three times asking for you. We informed him your shift will be over soon, but he was rather insistent, sir..."

Van groaned, rubbing his face, "You know damn well why he is Ta'aki, so you and the other two quit your giggling behind your paws. If he calls again tell him I'll be home as soon as I damn well can be."

"Yes'sir, but you know he won't let you get away with the excuse of paper-work again this time."

"Oh go soak your tail... You know what he's like when he's like this."

"Yes'sir."

The barely concealed giggle on the comm before the channel closed made Van sigh, R'kesh's mammoth paw squeezing his shoulder comfortingly, "It is not wise to ignore him Van."

"You wanna go in my place then big boy?"

The human smirked as the towering feline flared his paws in a surprisingly submissive gesture, making Van chuckle, "Yeah, I know, we tried that once before; it was almost too much for you. It's a miracle he hasn't killed me yet."

"You will persevere, no doubt."

Van ran his fingers through his fiery hair with a theatrical sigh, "I dunno what I was thinking when I let you set us up... You could have warned me you know."

"You two love one another, and it's only so often."

"Yeah, yeah, yeah... Wish me luck. Two more days."

"Till next one."

"Don't fucking remind me."

Van raised his gleaming metal and polymer hand, waving it brusquely at the towering feline who patted his hip as he passed, making the human snort, "Damn horny bastards, all of you morphic species..."

He glared at the vaguely grinning K'han as the lift doors started to close, "I'd rather go through another war some days..."

"Yes..." R'kesh's voice was highly amused, "But he is quite beautiful.."

The doors closed on the tail-end of the tiger-like male's statement, quashing a stinging reply as Van leaned into the wall of the lift, feeling it hum all around him, waiting. He sighed, "Take me to my damn quarters."

"Confirmed."

The bright, colorless voice of the lift chimed in, making the human male itch to shoot the speaker, if he knew the engineering details wouldn't take it out of his hide by cutting the power to his office for a couple of cycles to take revenge. The dark metal paneling of the lift was soothing, along with the vibrating hum of the anti-grav lifters that ringed the unit, making it slide along its track almost frictionlessly. Van rubbed his jaw, wincing at both the light peppering of stubble and the bruise that was seeping across his cheek. He jumped, still half energized by the bursts of adrenaline that had coursed through his system as the lift doors hissed open and brought him face to face with a brightly smiling feline face. The human clutched at his chest as he forced his hand away from the butt of his blaster, "Holy fuck Anar I almost shot your ass..."

The tall, willowy spotted feline male giggled softly, "I would hope you didn't, I'm only here to help."

Anar was a lovely member of his species, the J'rali, with a lithe, long-limbed grace, hour-glass shape and thick, short pelt of amber yellow with mottled spots and cream and white highlights. His long pale blonde hair and giant almond shaped blue eyes were warm, matching the blue sleeve on his uniform. A med-kit dangled from the pretty feline's paw as he gestured to Van, "R'kesh said you'd gotten banged up by that Darilian thief. I thought I'd come have a look before you got to your quarters... and will likely get banged up some more."

A flash of sympathy crossed the young feline's face as he removed a small medical scanner from his case and ran it over the constable who stood, half-leaning against the bulk-head, "Nothing broken, your adrenaline levels are high, but dropping, same with endorphins, you've got some bruising along your flank, chest and jaw, but I can fix that. I should treat those scratches, Good Gods know what was on that Dar's claws."

"Just try to make it quick, would you? Kellin may decide to come hunt me down if I'm late. How's things been in med-bay without him?"

"Quiet. Speaking of, your electrolyte levels are slightly off, he's dehydrating you too much. You need to take in more fluids during his cycle."

The feline shut the scanner with a snap, retrieving a dermal injector and several ampoules. Van eyed the trans-dermal unit, "Would it be too much to ask if I offered you 100 credits to sedate Kellin's ass for the next 36 hours?"

Anar chuckled softly as he pressed the unit to the side of the human's throat several times in succession, making him wince at the tiny sting, "That'd be cheating, and besides you know it wouldn't help and it'd make him sick. His hormone levels would be all over the chart."

The spotted feline patted Van's cheek affectionately, "You know it's best to just let this run its course. It's only once a month and it's healthier to just indulge him till it's over."

"That's easy for you to say. He's not all over you like an Antaran Tarantula."

The spotted feline giggled, "Oh, we've all indulged in at least one of Kellin's cycles in med-bay, before you came along. You know he's just more aggressive with you because he loves you."

"My luck, to end up with one of the species in the galaxy whose aggression is scaled to their lust for you."

"At least he's a doctor. So he's well aware of the limits of human endurance more than some. Open..."

Anar gestured at the closure of the human's uniform as he unsheathed an oblong device from his case. Van eased his jumpsuit down and open, exposing the parallel slashes to his tanned skin. Anar nodded, "They're fairly shallow."

The spotted feline ran the humming emitter of the amusingly phallic device over the shallow claw-marks on the human's torso, letting the sterile field it projected disinfect the wounds before switching it over to caress the scratches with the humming field of energy that accelerated the growth of the skin cells, healing the wounds over. As he worked he raised his azure eyes to Van, "How's Kellin this time? He's not biting again is he? You lost a lot of blood last time he nicked a vein on accident."

"Just the usual love-bites and scratches."

The ruddy haired human stretched, letting the feline doctor see the long, reddish-pink welts down his back and sides, making Anar click his tongue. The spotted male shook his head, "His last few cycles have been markedly more aggressive than normal, if he keeps hurting you we should consider hormone therapy."

"Chemical castration? Isn't that a bit much?"

Van winced, re-closing his uniform as he sighed, watching Anar shrug, "He might accidentally maim you one of these days. Mauphin males get their most aggressive at their sexual peak around 20 standard cycles, Kellin is almost 5 years past that, he should be getting less aggressive, not more."

"He could just be a late bloomer. But he hasn't done any lasting damage Anar, and he's perfectly fine once he's gotten laid a couple times, he can carry on a conversation, and eat, and sleep just fine till his hormone levels build up again over-night."

"I just worry. Maupin's are supposed to mellow with age and frankly I don't want to have to tinker with your genes any more than we have to let you keep up with him during his cycles. The nano-bots in your body that monitor your synth limbs and repair them can stave off most light injuries, but he's broken a few of your bones and given you some deep bites."

Van waved off the spotted feline's pinched expression, "He's fine Ara... I've had worse. Once his cycles taper off to only once every couple months instead of every month, things'll be better."

The human rubbed between the feline's ears, smiling. He tutted when Aran kissed him on the cheek, "Careful with the contact, if he scents you on me, he'll lose his shit. Least it's only two more days left on this one."

"Hopefully. Call if you need anything. I can have Selera bring it down. She's safe enough around him as he's chosen you as the targets of his affections and she isn't one of his own species."

"Hah, doesn't hurt she's a hybrid too, and almost as tall as R'kesh, either eh?"

The human male brushed at his uniform as the spotted medic padded away, watching his ample hips sway in his jumpsuit. Aran raised a paw in a universal gesture over his shoulder, "He'd strangle you if he saw you staring at my ass too you know."

"Yeah, yeah."

Van turned the corridor toward his own quarters when his comm unit went off petulantly, "Go ahead."

"Where are you?"

The familiar alto rumble of his lover filtered through his comm., making Van smirk, "Oh my way home, I'm two junctions down and one over."

"Hurry up... I've been waiting all day."

The growling tension in Kellin's voice was enough to make the human chuckle, "I'll be home in two minutes. Give a man a break; I've had a rough day."

"Just get home!"

Kellin's voice pitched higher into a plaintive key, making Van shake his head, wondering yet again what he'd gotten himself into. R'kesh had introduced him to the secondary chief of medicine on the small station soon after he'd come aboard as the new constable of security. Van had never seen a Mauphin before, and had been immediately intrigued by the hybrid species' alluring mixture of traits and affectionate temperament. He'd gotten a good, close up view of the hybrid species' most eccentric feature not soon after his half dozenth date with Kellin when the pretty male had entered into his people's reproductive cycle. It was the males of his species that entered into heat, not the females, who were obligate breeders, not ovulating till they engaged in sex. Nature's twisted sense of humor had bundled all the eccentricities, mood swings and hormonal extremes normally gifted to the female of a given species and packaged it into the males of the Mauphin race.

Van had long since gotten used to having Dr. Jekyll and Mr. Hyde as a mate, depending on what week out of the month it was. His normally sweet, affable, affectionate and somewhat shy lover turned into a raging, testosterone steeped bundle of penis with fangs and claws. He sighed and thumbed the lock on the doors of the quarters he had shared with Kellin for over a year, bracing himself for the whirlwind as he strode into his chambers. Years of security training had taught him well; he stiffened some parts of his body and let the others go loose as the glaringly white bundle of fur impacted him.

"You're late!"

The growling voice of his normally smooth timbred lover was loud in his ear as something pinched his shoulder hard right through his uniform, "OUCH! I am not! You know I specifically schedule half shifts for your cycles."

"You smell like blood..."

Kellin sniffed deeply; then growled, "And R'kesh and Aran..."

Van tried to pry his white furred lover off of himself, "Then let me go shower."

The human stumbled as Kellin shifted his feet, wincing as his lover's claws dug into his sides and the Mauphin male bared his sharp teeth again, sinking them into his arm, "OW! Kellin stop that!"

His lover's brilliant silver eyes seared into him, looking slightly wild as he snarled softly, "What were you doing with them?"

Van levered his synthetic arm down between his lover's bear-hugging arms and himself, "Mmmph, if you must know, R'kesh is my deputy so I'm forced to spend a lot of time with him whilst I'm doing my job love, and Aran was patching me up after some slagger slugged me in the face and tried to claw my chest open, see?"

The human male twisted his body, exposing the torn front of his uniform and the ruined sleeve of his suit. His lover's bright orange fur tipped ears swiveled as he looked at where the thief's claws had raked his mate and to where his green sleeve was ripped off, then his silver eyes narrowed as his hormones chose to disregard everything Van had just told him, "I don't like it when he touches you, he wants to fuck you."

"So do you, what's the problem? OUCH!"

Van cursed as his lover bit him again, digging his claw-tipped paws deeper into his uniform, "Kellin baby, let up! Gods, stop biting me! I came right home, didn't I?"

"After I called the security office three times. They said you were off with R'kesh."

"That's my job! Dammnit, n-OW, STOP THAT!"

Van gripped his white and orange furred mate by the shoulders, levering him back a bit to get outside the range of his muzzle as Kellin took another snap at him, "Kellin! Quit biting!"

The hybrid male flicked his ears back and hissed, "Then take your clothes off!"

"If that'll stop you from fucking biting my ass, just get off of me long enough to let me get undr-..."

"NOW!"

The snarling hybrid male pounced onto his human lover, making him end up half collapsed over the multi-lounge sitting in the recreation area of their quarters. Kellin was a little over half the size of his human lover, but his hormone fueled strength still made him a handful, even for his strong mate. The white furred male grinned maniacally as he shoved his tanned lover down and gripped his uniform, "I've always wanted to do this..."

Kellin's slim arms bunched as he wrenched the jumpsuit material open by gripping one of the slashes in it caused by the thief's claws, the loud tearing sound echoing through the quarters. He uttered a rumble as the motion of parting cloth exposed Van's broad, toned chest and ridged stomach, both as deeply tanned as the rest of him save for the pale seams of scars. The human grunted in protest as he felt his gun-belt clatter to the floor, "Hey! That could have gone off!"

Kellin's silver eyes narrowed as he continued to simply tear the uniform off his lover in strips, "You're chief of security; you know a blaster won't discharge unless it's got a biosignal holding it. So shut-up."

When his uniform was tatters from his collar to his crotch Van gripped Kellin's wrist, "Slow down..."

"No. Ugh, why do you insist on wearing these stupid things under your uniform, it just wastes time!"

The hybrid male looked in disgust at the pair of bright brief underwear Van wore under his jumpsuit, growling as he gripped them by the waistband and heaved, ripping them halfway off. As the material pinched his skin the human male grunted, seeing his lover's claw-tipped paws reaching for a delicate portion of his anatomy, "HEY! Sheath your claws!"

Van shifted his hips to one side, using his thighs to protect his crotch as he gave his white furred lover a gentle push off of him. Kellin's hissing snarl made the hairs on his neck prickle as the hybrid male flicked out a paw and gouged him with his claws lightly enough to sting on the outside of his hip, "OW! HEY, DAMMNIT!"

The human's 'borg eye lit up a little brighter, the tensing of his cranial muscles in a glower squeezing it within it's specially designed socket, making his enhanced vision flicker a bit on that side. He levered himself up and brought his non-synthetic hand across his mate's muzzle in a cuff hard enough to startle him. Kellin shifted, tripping over Van's utility belt and ending up sprawled on his ass on the thickly carpeted floor. Van swallowed, pulling his hand back as if he'd been shocked, sitting up as Kellin regarded him from the floor with his silver eyes as wide as mirrors. The Mauphin male daubed at his lip where he'd bitten himself, leaving a drop of crimson, his voice wavering, "You hit me..."

"You were about to grab my cock with your damn claws, did you think I was gonna kiss you?"

The ruffled human stood, shedding the last vestiges of his shredded uniform and standing over his gaping mate, offering his hand down to him. He blinked as Kellin's paw shot up, gripping him hard, and the hybrid male pounced to his feet in one fluid motion, growling with a grin, "Do it again..."

"I will NOT! I only cuffed you to get you to back off."

"Spoilsport. Now, where were we?"

As the hybrid male lunged toward him Van turned his body, using his grip on Kellin's wrist to twist his arm around behind his back and doubling the Mauphin at the waist, making him snarl and buck against his hold, "Hey! No fair! I don't have combat training..."

"Aye well, sucks to be you."

"I wanna suck you, yes!"

"Good Gods sometimes I want to shove you out an airlock when you're like this."

Van circled an arm beneath Kellin's waist, hefting the squirming white and orange furred male up and carrying him to the bedroom, a small delicately appointed chamber off of the main room. He sat on the wide, deep bed with a grunt and pulling Kellin across his lap and pinning him there, making the hybrid growl, "What're you-..?"

Van smirked and flicked his lover's massive, white and orange highlighted tail out of his way then brought his coppery synthetic hand up and then down with a *SMACK* across Kellin's heart-shaped ass. As his lover's fur bristled the Mauphin yowled in shock and hissed like a dry-boiled kettle, thrashing. As Van brought his synth-flesh hand down against his rump, each smack of flesh and furred flesh yielding a muffled thwack, enunciating his words, "You - Will - Learn - To - STOP - Biting - ME! Or - ELSE!"

The human sighed in consternation as he felt his lover's slim body responding to the stinging spanks, the heat radiating against his thigh and Kellin's keening whimpers as he shivered and arched hard, squirming against the human's lap. Van grunted, giving his white furred mate one last tap on the ass before he dumped him onto the bed to sprawl on his back, "If I kept spanking you, you'd probably have orgasmed. But do I have to teach you who's boss every time you go into heat love?"

As he stood the toned human male got a good look at his lover. The sprawled Mauphin male looked like a feline male, with gloriously bright white fur, slashed with highlights of almost pumpkin orange, flashing to almost strawberry red as he shifted. Kellin was slender, with a long, lithe frame, slightly broad across the shoulders and chest with a narrow waist and hips. He had a slightly wider skull than most felines, with a shorter muzzle and blunt, rounded, orange rimmed ears that showed the Metaran heritage in his blood. The massive, fluffy tail of white fur and orange stripes that thumped in consternation at the bed sheets belied his mixed racial heritage as well, it was as motile as a feline's, but broader than himself at its widest point. Mauphins were the genetic offspring of the skunk-like Metaran species and an unknown felinoid ancestor somewhere in the distant past.

Kellin's small, but wickedly hooked claws flicked in and out as he flexed his paws, showing off another of his feline traits. The slim male's luminous silver eyes and lone mane of extremely pale reddish hair, almost pink in the light completed his beautiful visage, now twisted into a tense snarl that showed the tips of his short, but sharp fangs. Van speared a finger toward his hybrid lover as he saw Kellin's massive tail twitch and his hips shift ever so slightly. The wiggle of his lover's hips telegraphed his intent to spring again, "Don't you dare!"

Kellin's rounded ears flared as he uttered a harrumphing snort and licked his lip where he'd nipped himself. His slim body was thrumming with tension, achingly erect, his belly roiling with heat that he could barely control or douse other than with what his hormones told him he needed. In the times when his biological imperatives weren't clouding his judgment or impulse control the young hybrid often remarked he assumed it was like what addiction sufferers went through. He needed what he needed, his body openly rebelled against him when he fought the need and only indulging in acts that regulated his hormone and endorphin levels doused the burning fire of desire that rushed through him only slightly enough to function.

Van wiped his slightly damp brow, wincing as he touched the bruise on his jaw, looking with exasperation at his shivering mate. He sat down on the bed, letting his synthetic fingers; just as warm as his biological ones run over Kellin's ears. He felt the Mauphin twitch softly, the beginnings of a growl building in him, "Van... I need-..."

"I know what you need lover. I've serviced you willingly enough for the past what, 2 dozen or so of these damnable cycles of yours. You said they'd lessen as you got older luv, but these last couple have been worse than usual."

Van shifted onto the bed and levered his boots off, along with the ruined cuffs of his uniform pants. He sat back, looking to Kellin, "Aran suggested hormone therapy if this keeps up."

The silver-eyed male looked shocked as his ears and tail snapped to attention, "Aran wants to castrate me?! That bastard..."

Kellin scrambled across the bed, giving Van a magnificent view of his heart-shaped ass wriggling back and forth, "Probably so he can rut with you himse-UNH!"

He bristled as Van caught the thick base of his tail, hauling him back. Kellin yelped as the human's grip on his tail was tight and Van levered himself onto his knees, pursuing him. As the hybrid male built up to another snarl the human's weight was on top of himself, forcing him into the bed as Van pinned him down, "Don't you bloody dare! He's only thinking of both our welfare. These cycles of yours are rough enough on me with all the bites, scrapes, bruises and such and they flood your body with stress toxins."

Van slapped Kellin on the ass lightly once more, making him yelp and squeezed the base of his fluffy tail. The result was immediate and not unexpected, as Van knew exactly what would happen. The Mauphin's shoulders and chest went down and his hips and ass went straight up, arching his spine in a position that would have been monstrously painful in a human. Van smirked as Kellin's body automatically assumed what he playfully referred to as "bitch position", brushing the Mauphin male's bushy tail to one side almost negligently and pressed his hips up against the hybrid's smoothly curved rump. Kellin uttered a keening whimper, baring his fangs as he felt his lover's fairly thick cock prod against him. The human's peculiarly naked, unadorned length compared to many other species' had a blunt tip, a smooth, veined shaft and a large set of testicles dangling beneath him. Van's length was modest, scantly over 7 inches, almost the width of 3 fingers wide at its base, but Kellin had never voiced any complaints.

The width of the human male's glans made the first push laced with discomfort, but Kellin's hormone swamped brain never even acknowledged the pain; merely the almost joyous relief that he felt as his lover slipped into his rump with nearly indecent slowness. Van took his time, punishing his slim lover for the bites by letting him feel every smoothly veined inch of his cock till he was sheathed flush into the Mauphin's body. He could feel the squeeze and flutter of Kellin's body around him as the hybrid beneath him squirmed his hips, desperately trying to thrust back against him, fighting his weight upon his back. Van relented, lifting himself enough to get his arms out to either side of his slender lover's shoulders and lever himself up to their length, rocking his hips slowly.

"Harder!" Kellin's guttural bark made Van crack him across the ass, "I just put it in, I'll hurt you."

"HARDER!"

"Oi... Just lemme work..."

Van gripped his lover's narrow hips, arching himself over Kellin's pure white back, spreading his kneeling legs farther to give him enough leverage to thrust. The human male sped his thrusts, making his thick length spear into his shivering mate deeper and quicker, seeming to appease him at least temporarily as their bodies clashed. The pure white and bright-reddish orange of the Mauphin male jammed itself against the deeply tanned, nakedly smooth flesh of the human male, jerking back and forth as he shoved himself back into the juncture of their rutting. As he grunted, moving his broad hips faster and deeper against Kellin the human male grinned softly, blowing into one of the Mauphin's rounded ears, "Not that you've been paying attention to anything I've said for the past week unless I'm balls deep inside you, but did I tell you Leth down in the engineering core put a new upgrade in my arm?"

"Nnnmm?"

Kellin's gritted grunt showed he was barely aware of his lover's banter, Van could have told him his head was on fire, but so long as the humans cock was inside him he probably wouldn't have cared for longer than a moment. With an agility born of decades of combat training Van reached across his lover's shoulders and depressed a segment on his artificial arm, watching a small round port pop up. He pressed a tiny silver stud, grinning as he felt his synth hand from the wrist down begin to throb with vibration. He closed the small port and then slipped his artificial hand down between Kellin's thighs, "Yeah, just for you."

The white furred male nearly shrieked as Van's vibrating hand closed around his straining cock, the deep, thrumming pulses of sonic power making him shudder. The Mauphin's prick was a scant inch shorter than his human lover's, but narrower. A sleek, pale, taper-tipped affair with large, velvet furred balls swinging heavily below it. Kellin's cock was already dripping bolts of his pre-seed onto the sheets as Van squeezed him, tense, tight, hot to the touch and radiating the Mauphin's wonderfully strong, musky pheromones. His people didn't share their ancestral Metaran's ability to mimic other races mating scents, but what they lacked in quality they made up for in quantity. Even the human, with his horrifically weak sense of smell compared to any morphic race's enjoyed the depth and complexity of his lover's rutting scent.

Van stroked his slender lover with his deeply throbbing synth hand, feeling him squirm and shudder as he bucked against him harder. Kellin yowled loudly enough to crack a porthole as he came with a ferocious blast of his pent up seed all over himself and the bed beneath. When they were in cycle Mauphin males could climax in a second and their bodies produced nearly three times as much semen as normal. Van mused in amusement it was lucky he had a bit of a semen fetish as his slender lover's cock burst all over his hand and the sheets. The human leaned into his lover's heaving back more, Kellin's body clenching like a vice around him as he orgasmed, feeling his own body building to his climax. Van gritted his teeth, the motion making his artificial eye flicker again, he would have to have someone look at it before long, as he hunched himself down against Kellin's arched back.

The human let his hips pound against Kellin, allowing his body to build to his orgasm as quickly as it liked. The quick and dirty fuck session wouldn't be the only one his lover would let him get away with before his shift the next day, so he allowed himself to rut almost bestially. As much as the human liked on-demand, and at times, purely demanding rutting, he almost looked forward to getting back to making love with his mate instead of simply fucking. He gritted his teeth, ignoring the fact that his synth eye blacked out completely with the motion, his spine tingling as his balls tightened. Van groaned, his thrusts turning erratic, making Kellin growl in approval as his own cock erupted into a flurry of his warm seed.

Van panted lightly, his body coated in a light sheen of sweat as he humped against his white furred lover, burying his cum into the Mauphin male shuddering beneath him, then slowly relaxing into afterglow. He gingerly withdrew his vibrating synth hand from Kellin's length, hearing the hybrid snarl in protest and grind his hips back urgently. Van smirked softly, licking his slightly dry lips as he leaned in and bit his lover's rounded ear, "You know the rules, I cum, you lemme reload, we fuck again. We humans have a refractory period you know, doctor. I believe you timed mine down to roughly 15 minutes the one time."

Kellin hissed at him as he withdrew his still half-mast cock from the white-furred male's ass, but acquiesced readily enough. The Mauphin male rolled onto his side, panting as he clenched himself down to hold onto his lover's deeply buried gift, then blinked up at Van, "Your eye is dark."

The burning need coursing through the Mauphin's body and brain had been quenched enough to allow his clinician's mind to resurface again. Now calmed for a short while he touched Van's biological arm as the human deactivated his synthetic arm's new toy, "Did you hit your head?"

Van grunted, reaching up to tap his optical sensor, making it flicker, but his vision stayed stubbornly monocular, "The slagger hit me in the face and I might've knocked my head on the floor when I fell. It probably worked my implant loose."

The human male sat down with a grunt, reaching to his darkened implant and twisting the round lens anti-clockwise, watching as Kellin's muzzle quirked, "You're a doctor love. You've seen me pop my implant out a hundred times."

With a click and a hum the rounded implant thrust itself from its socket far enough for him to grip it and he pulled the rod-like device free, holding it delicately by the sensor end. He examined his optical implant with his good eye, frowning as nothing seemed wrong with it, "I'll have to have Leth have a look at it tomorrow... Till then."

Van fished on the bedside table, opening the sleek black case that had come with the implanted sensor and laying it on the soft cushion within it, snapping it closed. He used his hand not coated with Mauphin semen to reach up and slide the alloy lid implanted in his metal brow down, turning it into an impromptu eye-patch to conceal and protect the delicate inner workings of the exposed socket. The human sighed gently, rubbing the sore spot on his jaw, "I'm going to take a quick shower... While you let me."

The human stepped lightly off the bed, stretching, hearing his spine crackle in half a dozen spots and his neck popping twice. He thumbed the button next to the bathing chamber, relieving himself as the plex doors to the shower unit hummed open and the unit turned itself on at his voice, "Shower. Wide spray. 40 degrees Celsius for 190 seconds, then reduce to 37 degrees till I say stop. Rinse, soap, then double rinse."

The shower unit pinged in response, releasing the wide, steaming sluice of water down over him as he stepped into the rounded cubicle. The human male sighed in pleasure as the hot water caressed over his sore body, closing his eyes as the water mingled with soap, scrubbing himself from head to foot, feeling the sluice cool slightly, then simply pour down over him as he leaned against the shining polished polymer bulkhead. Van jumped as he felt a feather-light touch on his shoulder, opening his eye and glancing around to see Kellin standing just outside the shower unit with a tissue regenerator in his paw. The Mauphin male's wide silver eyes were downcast as were his tucked ears as he raised the humming instrument to the purple and red bruise on his lover's jaw, "Van... I'm-..."

He was caught mid-sentence as the human shushed him, "Kellin hush."

"B-b-but... Van!"

The conflicted hybrid stuttered looking stricken as he gently ran the regenerator over Van's jaw, making the human chuckle softly, "No... Kellin, I mean you don't have to apologize luv. We have this exact same conversation at least 10 times whenever you're in cycle. Once we've fucked and you calm down, you start apologizing for acting like a deranged cock-junkie and I forgive you. We had this same conversation twice yesterday, but you invariably get hormone crazed again and forget.

"You're just carrying out the biological imperative coded into your genes. You don't need to apologize. The only thing I find more amusing than you showing remorse for fucking, is the fact that by all medical rights you should be wanting to fuck me, not desperate for me to fuck you."

Kellin's rounded ears turned red as he watched the bright bruise slowly fading beneath the ministration of the instrument in his paw, "I've never liked... females..."

He stammered almost cutely, "A-a-and when I met you... I wanted you to be my alpha, so..."

"Your rutting instincts rewired themselves, for the most part, eh? Not that I'd be opposed to trying it t'other way round once in a while luv."

Kellin's almond shaped eyes widened, "You wouldn't?!"

"Did I ever say I wouldn't? You never asked."

Kellin blinked, shutting off the regenerator as his lover's tanned skin showed no signs of the bruise that had marred it. He hunched his back a bit, his tail fanning low, "It... It's not usually proper for a beta to..."

"To want to be on top? Maybe in your culture, but personally I don't care."

Van shrugged, rubbing his jaw, "Though, I would prefer to wait till you're not in your cycle to give that a test-run, if it's all the same to you luv. I don't think I'm ready for that wild a ride on a first time, fucking with a doctor or not."

The human leaned, kissing his orange and white furred lover, "Thanks luv."

He glanced up, "Shower, dry mode."

The showering water was replaced by hot air as the unit clicked over into its drying mode, making the human's reddish hair jump and whirl as it quickly dried. He was warm and dry when the unit shut down, stepping from the cubicle as Kellin's pale-haired head poked back into the hygiene chamber, "Van..."

"Aye, I know, you're starting to jones again."

The tanned human stretched his synth arm, "I'm gonna have Leth rig up a remote unit for the new augmentation next week. Should make it easier to use."

Kellin nodded tersely as he sat on the bed, his fur prickling as he tried not to shiver, the barely abated heat turning his belly starting to roil back to full boil. The endorphins and other hormones released at climax were beginning to sublimate to the overriding urges once more, making his fluffy tail twitch and jerk spasmodically. Van thought his lover was showing an amazing amount of self-control as his body's urges threatened to overwhelm him once more. He sat down on the bed, stroking his hand down Kellin's nape and back, feeling his soft fur ripple against his touch. His hybrid lover shivered, his throat offering a tiny whimper as he looked to Van with his bright eyes, "Vaaan..."

Kellin's fingers flexed as he touched his human mate's broad, muscled chest, "I need you again..."

"I know luv. Come on."

The tanned human scooted himself back on the wide bed till he was half reclined against the dense cushion of the pillows, urging the Mauphin closer. Van murmured as he stroked his hands over Kellin's slender, wonderfully formed body, caressing his softly furred chest and belly. The hybrid's cock was already hard again, strainingly erect and dribbling as it twitched between his thighs. Van teasingly tweaked the Mauphin's nipples between his fingers, something he knew turned Kellin on immensely, hearing him moan softly. He chuckled, "Yours can go up and down on a whim when you're in heat, mine needs to wake up again, remember?"

"Mmmhmm..."

Kellin ran his restless paws over his lover's thickly muscled thighs and crotch, touching him eagerly, but tenderly, licking his lips. Van watched his lover's face, the hunger in his silver eyes, nodding, "Alright, but no biting, or I'll shove you in a storage locker till your cycle is over, got me?"

"Yesss..."

The hybrid male hissed, bouncing to his paws and knees as he eagerly buried his face in his mate's freshly showered crotch, savoring the human's personal scent. He nuzzled his way down against Van's stirring cock, covered by it's funny tube of skin and his hanging sac of smooth, wrinkled skin, purring in that funny, disjointed way his half-feline people had. Van groaned as his lover's long, nimble, damp tongue slipped around his stirring cock and enveloped it in that slippery warmth. He rested his hand on Kellin's nape, encouraging him as his length gave another twitch, stiffening faster against the long, drawn-out flicking of the hybrid's tongue. Van grunted in bliss as Kellin's tongue snaked down and rolled his balls licking them deftly. The Mauphin's muzzle was sending waves of the hybrid's hot breath across his crotch as his cock was now fully alive, peaked and thudding softly with his heart-beat.

Kellin opened his muzzle, taking the broad tip of his mate's cock into his mouth, keeping his teeth safely away from the tender skin passing between his lips. He sucked, moaning to himself as the taste of Van's length spread across his tongue, musky and slightly salty. He bobbed his muzzle, squeezing his lover's balls as gingerly as his swiftly lust fogged brain would allow, rumbling gingerly. As the hybrid worked Van kept a hand on his head, between his ears, controlling and guiding the down-ward thrusts of his skull and keeping him from being too eager. As his length twitched, sending dribbles of pre-cum over Kellin's tongue Van gripped his nape gently, "Alright luv, that'll do. It's hard and wet now, any more and you'll have to wait again."

Kellin growled softly, pulling his muzzle from Van's cock with an effort, panting lightly as he nodded unsteadily. He gripped his lover's erection at the base, pulling himself forward till he was straddling the human's thighs, letting Van's length rub and touch against his own dripping prick lightly as they moved together. Van rubbed his hand down Kellin's muzzle and throat, "You want to ride it?"

"Yes."

The whining tone of the hybrid's voice made Van nod as he shifted, splaying his legs and canting his hips. He helped his Mauphin lover to slide up, gripping his hip with one paw and his own length with the other as Kellin reared up into his knees and held his rump suspended above Van's cock, the blunt tip wedged in the cleft of his rump. The furred male spread his own buttocks. He eased himself down farther and farther till Van's glans was pressed right up against the entrance of his body which was clenching and relaxing in anticipation. Kellin snarled gently, his breath hissing in and out between his teeth as he let his own weight drop an inch, making the tip of his human's mate cock pop into him with a tiny jar. Tingles of pleasant heat washed through the Mauphin's body as he let himself slide down Van's prick, right down to the thick base, impaling himself upon it like a spear.

The slick, throbbing spike of human flesh within him responded wonderfully as he clenched his skilled muscles down breath-takingly tight, the pressure squeezing around its base making it flush and thud harder. Van groaned, feeling his prick embedded in Kellin's slim body to the root, grinding his hips slowly. The gentle, side to side motion of the human's hips made his cock wriggle back and forth inside Kellin, rubbing his inner walls, skating across his inner trigger. As Van's blunt glans prodded his prostate the hybrid male wriggled, his body tingling with electricity, making his length give a dribble of pre-cum. With the burst of pleasure up his spine the Mauphin's heat was rekindled, making him growl stridently and shove himself down against his human lover, grinding and wriggling his hips wildly.

Van groaned, giving Kellin a slap on his heart-shaped rump, gasping as the hybrid male ran his claws down his toned torso in response, leaving 8 bright pink welts. He bucked his hips in rebuttal, making Kellin squeal as he was raised several inches, squirming, completely impaled on Van's thick cock. Van allowed his hips to sink back down, bucking them slowly, grinding them beneath Kellin's ass. The slender hybrid jounced in his human lover's lap, riding his length eagerly, leaning toward him as he arched his body. The grunting males clashed together in hard, deep, slamming thrusts, Kellin shoving himself down onto the thick cock invading him to the core and Van bucking up to meet his hybrid lover's down-ward jolts of his ass.

The burning fire rekindled in the Mauphin male was reaching a roaring heat, making him pant and growl as he jammed himself down on Van's prick, jerking his hips to tug and pull at the human's length. The hard, squeezing clenches of his body milked Van's length, his rippling muscles squeezing and caressing the thudding spike of flesh filling him eagerly. With each thrust Van's thick tip skidded across the raised nub of flesh on the hybrid's inner walls, making him moan loudly as his body twinged and tingled, making him shudder. The tingle of electric heat hammering the hybrid male made him wriggle and squirm, his length jerking, spurting pre-cum over Van's ridged belly. Kellin uttered a stuttering yowl, the massaging of his internal trigger bring him crashing over the edge with a jerk. His sleek cock exploded all over his human lover, the first burst catching him in the face as he jerked his eye closed, feeling the Mauphin's seed splash his skin.

He gripped Kellin and pumped him hard, stroking his smooth, sticky skin, bringing forth spurt after spurt of almost scalding cum to pool on his broad chest and rippled stomach. The slender hybrid squirmed, almost screeching as his body twitched and shivered, the impaling spike of thudding flesh up his ass and the squeezing, milking grip around his cock making his pale eyes roll up white. Van licked his dripping lips, grunting and stroking the Mauphin harder, "You like that, don't you baby? When I fuck that cum right out of you."

The hybrid's growling response was in his own tongue, so the tanned human caught only the gist of it. The panting and rolling of Kellin's eyes as well as the fact his feebly squirting cock didn't flag at all telling him everything he needed to know. Van levered his vaguely aching hips upward harder, feeling his own length ready to burst once more, knowing he'd be needing an analgesic and a muscle relaxant before they even reached midnight. Kellin's plaintive mewling rasped in his ears as the Mauphin gripped his chest and hammered his ass down harder, "Give it to me... I need it!"

"Yesss...!"

Van gripped his lover's slim hips tightly, shoving his own upward hard and deep, bucking against the white furred male roughly. The fur-muffled slap of Kellin's ass into his lap was overlaid with tiny wet squelches as their mingled fluids lined the cleft of the hybrid's ass. The human almost roared like a beast himself with his second shot thrumming through him like fire, his balls jerking up tight as they slapped Kellin's ass. The human's hot, silky essence pumped into the panting Mauphin, making him shudder anew with pleasure. As each of their roaring climaxes quelled the biological fire within him, every burst of his lover's life-seed brought him farther back to his senses. The almost purely psychosomatic response of the Mauphin male's mind to their paired climaxes would have kept an analyst busy. Normally the male Mauphin's cycle eased the moment he knew his bond-mate was impregnated; by scenting or tasting the tiny chemical changes in her pheromones. But as barring a miracle neither of them could ovulate, they just had to keep chipping away at Kellin's biology till he grew out of the mind-numbing periods of sexual tension.

Kellin slumped down over Van, his pristine white and ruddy streaked fur matted and sticky, his spine heaving as he panted. The human's body tingled as he slowly massaged his lover's thickly furred nape, gripping his wonderfully smooth ass lightly. He panted in tandem with Kellin, kissing along the hybrid's throat, "You know... A few bouts of mind-blowing sex per day, for a couple of days per month... isn't too high a price to pay."

The human paused thoughtfully, allowing his breathing to steady a bit more, "However, I still think Aran should do some tests, just to see if we can goose these cycles of yours into a more controllable thing. Maybe we can get some female Mauphin pheromones for you like he'd mentioned a while ago."

"Mmm, you don't like the sex?"

Kellin's winded voice was slightly stung, but Van kissed him, tugging his muzzle over till their lips pressed. The human smiled inwardly as he felt the hybrid's tongue probe at his mouth eagerly. He chuckled as they drew apart after a long moment, "I love the sex luv. But I want to see if we can get you to a lower plateau of being an insatiable sex fiend once in a while."

Van squeezed Kellin's rump, feeling him shiver, "Especially with the aggression."

"I can't help it. Mauphin males are wired to be aggressive when it comes to mating, otherwise we'd never reproduce."

"That's called rape on some other worlds luv."

Kellin's muzzle wrinkled cutely as he nipped Van softly, "Don't be so vulgar Van... That's just how evolution is on my world, the females can get horny just like we can, but it's the males who're wired to drive the population renewal."

The Mauphin shrugged softly, burrowing deeper against his human lover's smooth skin, "We're hybrids... So we started with an extremely limited gene-pool. Our initial population had to breed as often and as aggressively as they could to provide a stable breeding population."

"Yet you're not as prone to genetic drift and complications as Laslurians, then again, they're much more leisurely about rutting... Who knows."

Van shrugged as well, rubbing Kellin's smooth back, trying to ease his burning thighs, "I'm going to need to rest a little longer this time luv, unless you're up to synthesizing me a few injections."

"In a bit..."

Kellin basked in the highly charged afterglow tingling through him, giving his inner muscles a tweak now and again to keep his human lover from going completely soft within him. He licked Van's lips and cheeks, lapping up his own sticky seed, kissing his human lover. As Van ran his hands up and down his back, cradling his sticky rump with his hand gently he smiled, kissing back. The human male could feel the occasional ripple of Kellin's muscles, marveling again at the amazing muscle control some morphic species possessed.

"You furred species certainly know how to keep a man busy."

Fin