Madison's Metamorphosis
A commission completed back in December of 2008, recently OK'd to post here. Thanks, Comet!
Madison leaned his head back as he drank some water, washing down a few supplements. Legal supplements. Not the illegal ones his trainer â€" ex-trainer, he reminded himself â€" tried to get him to use last time he'd seen the guy.
That mess still wasn't over. Although the police eventually cleared him, he'd been banned from the competitive circuit. And this was his year in the Mr. Universe contest, he knew it!
He looked in the reflective mirror above the small sink in his quarters and sighed. He flexed his arms mechanically, watching his muscles bulge up. Perfect pecs, perfect stomach, perfect arms, perfect shoulders. He was in perfect shape, but that stupid trainer of his wanted to get him just a bit more edge, no matter the cost.
He had six months of suspension left and then he'd be back, he thought grimly. They wouldn't be able to write him off, though â€" he kept in shape and planned come back even stronger and bigger.
Madison was a weightlifter, a bodybuilder by profession. He'd been doing it since he was just a teenager. He'd had a natural inclination for it and loved working out. Now, since he'd been banned, he'd had plenty of time on this job to keep perfecting his body as a human failsafe for a mostly-mechanized transport ship.
Transporters could move most products and people around the worlds now, but some items were too delicate, fragile, or large to move en masse. That's where he came in, courtesy of his uncle, in the physical transportation business.
Right now he was shuttling some cargo to a disposal facility above Jupiter, the galaxy's dumping grounds. He'd been at sea for a few weeks already, but the isolation didn't bother him â€" it never did. And he was grateful for the work. He still had bills to pay, mostly legal bills from fighting the Mr. Universe pageant over his expulsion. Still, one year was better than five, and he was glad to take the settlement. He'd still managed to save up quite a bit of money, fortunately, and he had a good nest egg should the bodybuilding not work out in the future.
Madison turned around, looking at his rippling backside, before going back to his cot. He was in between training sessions right now. He figured he'd get a nap before doing the rounds again to check the cargo and juice himself up on some protein drinks. Most of it was industrial waste, but his uncle assured him he would only be transporting safe items.
Madison really was huge. Six-and-a-half feet tall with broad shoulders and thick legs, plus a body made of pure, incredibly defined muscle, meant he barely fit in the cot. His uncle pulled a few strings to get him the assignment, considering he was a little too large for regulations.
He sighed and picked up the cargo manifest on the nightstand. He flipped the little electronic pad on and browsed the contents again, going over mentally in his head where everything was.
The freighter he was guiding wasn't too large, but there were three major holds on three different levels, in addition to his quarters and cockpit up in the front. Pilots didn't need much training to guide the birds â€" they mostly flew themselves nowadays, which suited Madison fine. He wasn't interested in piloting cargo for the rest of his life. He only took the job because it was low-stress and let him train as much as he liked, long as he kept up on a few duties, mostly cleaning and double-checking cargo when he picked it up, which was only rarely, since the trips to the Jupiter incineration plant were long.
His eyes read over the items as he scrolled down until a certain line caught his eye. "Government Experimental Human Growth Hormone - Class E Restricted." There was no further information on the entry besides the size, weight, and location of the cargo.
That was unusual. Most of the items included detailed hazardous material descriptions with all sorts of warnings. This one didn't.
He sat up and pondered what exactly the hormone was. He'd taken growth hormones before. They were legalized almost fifty years ago after enforcement became impossible. The tests couldn't catch the new drugs quickly enough, so the Mr. Universe competition, working with the governments, decided to let people use them since they couldn't stop them anyways. Only the addictive and dangerous ones were banned now. It was easy to tell who was taking them â€" they were the ones with shrunken balls and a two-inch dick.
Madison grinned and glanced at the pleasing bulge between his legs. There was a reason he kept away from that crap.
His eyes returned quickly to the electronic pad, however, and he continued to think about the contents of the box. Maybe he could get the computer to analyze what it was.
Madison smiled again. The government wouldn't notice a few vials missing, especially if it was on its way to a disposal operation anyways. And plus, if the computer analysis showed it was safe, what would the harm be in trying it out? Government labs were wasteful; everyone knew that. They'd rather throw out a good product before selling it to a private company.
He stood up and, using the pad to guide him, headed towards the cargo holds.
The box was easy to find. There was no security on the ship â€" what was there to steal? He pulled it out and opened it up. The metal container had three glass beakers securely hung in the center of the container by a series of straps. Madison undid the straps of one vial and held it up to the light.
The liquid inside was amber-colored. There was no label, he noticed, either on the beaker or on the box itself. Except for the electronic chip holding the basic information, there was no identifying information at all.
He took the rubber plug out of the beaker and held the liquid up to his nose. It was musky and very strong smelling, like a wet animal. He shivered as the scent flooded his nose, making his eyes water. He held the vial away from him for a few minutes as he shook his head, trying to clear the air around him.
It was an oddly satisfying smell, despite its strength. The color and smell probably were effects the scientists couldn't change, so instead of taking it to market or using it, they'd have it incinerated instead. He wondered how much a normal dose would be and gently inhaled the vapors again. Probably a half-vial â€" there were about 12 ounces in each, it looked like.
He shivered and felt himself grow very much aroused. His shorts tightened considerably as he got hard. Licking his lips, he put the cap back on the vial and regarded it again. The smell was very good, now that he was used to it. Definitely musky, like a strong cologne. He flushed, strangely aroused.
He put the vial back in the box, then carried the entire thing with him back to his quarters. He'd run a sample through the computer before he did anything else â€" he wasn't the brightest person in the world, he knew, but he did know enough not to simply down strange chemical mixtures.
Once back in his quarters, he pulled out the vial and set it in the chemical analysis alcove. Generally it was used to detect whether his clothes were contaminated after loading or unloading cargo, but it could do rudimentary chemical analysis, as well as chemical creation if he needed a way to clean up a spill.
The computer hummed as it scanned the liquid in the vial before putting a report up on the screen above. Madison read it carefully. He recognized most of the ingredients, since he took a lot of them as supplements anyways. He didn't see anything illegal and the toxicity report was negative. In fact, besides one or two unique ingredients he didn't recognize but, according to the computer, were completely safe, the liquid in the vials were no stronger than the supplements he'd taken himself just an hour ago.
He pulled the beaker out of the alcove and took the topper off. Again, the strong and musky scent hit him. This time, he continued to inhale, getting more and more satisfaction from the scent alone. His erection returned, stronger than ever. Whatever this stuff was, he decided, it was really good shit.
He brought the beaker to his lips. There was about twelve ounces of fluid in the glass bottle, but it was probably concentrated, so he'd only need to use about three ounces to feel the effects the first time. But when he tipped his head back and the chemical hit his tongue, he gasped and coughed, pulling the bottle back quickly.
The taste was strong. Very strong, like the scent. Definitely concentrated, he thought, looking at the amber liquid in the bottle. He licked his lips as he swallowed. It was thick, like syrup, and didn't go down easily. The taste put him off it at first, but like the smell, he quickly began to enjoy it. He'd only gotten about an ounce or so down, so he brought the bottle back up to take another swig.
This time, Madison was prepared for the taste. It flowed over his tongue, the consistency of honey. He closed his eyes, relishing the strong and musky flavor. Suddenly the flow stopped and he opened his eyes. The bottle was empty â€" he drank the entire thing without realizing it.
He was a bit worried, but if it was like his regular supplements, overdosing wasn't really an issue. His body would simply flush out the excess without any trouble.
The flavor was intoxicating and he smacked his lips, shuddering as he felt the thick syrup slide down his throat. It was warm and comforting and sensual. He could smell the musky scent in the air still. He repackaged the container in the box and contemplated another vial. If he took one, they'd notice just as soon as if he took them all. If he played it right, he could simply keep the whole box and they'd be none the wiser â€" all they looked for was the chip. The sanitation people at the station never checked the contents of a box.
He rubbed his stomach slowly, feeling the syrup inside him warming his interior, like strong liquor would. His skin felt very good when he rubbed it. Madison lifted off his shirt and pushed his palms again his chest and belly, smiling as he felt his ripped pecs and abs ripple against his fingers.
He grabbed another vial from the box before closing it and going back over to his cot. He cracked open the tube and inhaled the scent again, shuddering as a wave of unexpected pleasure washed over him. His cock throbbed in his tight shorts as he slid one hand over his chest and stomach, tracing the indents in his skin from his perfectly-shaped muscles. With his other hand, he brought the vial to his lips and began to drink, unable to resist the temptation of the musky, strong liquid. He knew he shouldn't, but he couldn't help himself.
He finished the bottle quickly and set it on his nightstand. Madison felt flushed and warm all over. His arms and legs felt tingly, and the feeling quickly spread to the rest of his body. He moaned and leaned his head back. Everything was feeling so good, from the blanket rubbing against him to his hands caressing his bulges of tendons and sinew. His cock felt incredible as it throbbed in his shorts, pushing out against the fabric.
Sometimes he'd feel something similar to this when he took a supplement, but this was stronger. He groaned again as his fingers brushed over his pecs and nipples. They were tender, he realized, almost sore. He squeezed them, gasping as delicious pleasure washed over him again. Pre-cum squirted from his shaft, making a large wet spot on his shorts.
"Oh... oh, fuck," Madison gasped. He rubbed his legs together, squeezing his balls upwards in the shorts, and used both hands to squeeze and massage his pecs and nipples. It felt amazing. Heat began to grow inside him, hotter than before.
He was worried he'd taken too much of the chemical, but it was too late to do anything about it now. Besides, it felt so good, he didn't care. Madison worried only about pleasuring himself as his body became oversensitive and extremely aroused.
He could feel himself sweating and shuddered as his fingers pushed down his chest and belly, sliding over the smooth skin, slick with sweat. He pushed a hand down into his tight underwear and let out another groan as he closed his fingers around his erection.
It felt so good and thick and big in his hands... what the hell was in that stuff?
The scent lingered in his nose as he licked his lips, suddenly craving more. He lurched from his cot, one hand still wrapped securely around his raging erection, and crawled over to the box a few feet away. He pushed it open and took out the last vial, then guzzled it down greedily. It tasted so good, so strong and masculine, with a hint of sweetness at the end. The scent filled his nose once more as he dropped the empty vial.
He tilted his head back as he sat on the floor, the cool metal plates feeling delightful against his flushed skin, especially his bare backside. The syrup slid down his throat like magic and he gasped as his cock suddenly came. Thick cum gushed from the tip, soaking his shorts and his hand as he stroked himself furiously.
His orgasm wasn't a strong one, but his whole body felt it. He curled and uncurled his toes rhythmically in his shoes, shuddering as he pulled his hand from his shorts. Thick cum coated his fingers. Staring at his hand, he brought it close to his face and sniffed. His cum smelled like the supplement. But how was that possible? There was no way for the chemical to work that quickly.
He tentatively leaned forward and licked his thumb, tasting his seed. His eyes closed as he discovered it tasted almost exactly like the amber liquid did, and he hungrily sucked each finger clean.
Madison groaned heavily again and lay back. He breathed hard, chest rising and falling, as twitches and spasms began to ripple through his body. He could feel his pecs squeezing and flexing on their own, then his calves and thighs. Even his nose was twitching, but it all felt wonderful. He closed his eyes, moaning again as sweat dripped from his body onto the floor. The scent was all around him now, thick and musky and strong. He raised an arm and turned his head to sniff at his armpit. The scent was... coming from him?
He didn't know how, but he was happy about it. He pushed his nose into his armpit, inhaling the strong scent eagerly, lustfully, as his throbbing cock drooled pre-cum into his soaked shorts. He'd never been hard again so quickly after cumming, he thought, but he wasn't going to complain. It felt excellent â€" so thick and hard and slick against his thighs.
A burning heat rushed through him then. He cried out and curled up into a fetal position as pain wracked his body. He felt like he was on fire and his sweat-drenched hair fell across his face. He gasped and held his knees to his chest as the fire only built, growing hotter. Despite the gut-wrenching pain, he half-moaned as it was accompanied by knee-shaking pleasure.
The fire stopped growing at last and abruptly ended. He gasped and laid flat out on his back, shaking from the exertion. He felt nothing now, only the smooth, cold floor against his aching back. Reaching up, he used a shaking hand to pull his hair away from his face. It was longer and he quickly realized it was growing.
Growing quickly, too. He sat up and shuddered as he forced his aching body to stand, then shambled over to the mirror. His hair was growing, visibly lengthening as he stared at his reflection. Madison's thick black hair soon fell down to his shoulders before it stopped.
"What the..."
Madison ran his fingers through the hair. It was long, longer than he'd ever let it grow before. He looked at himself in the mirror again and smiled. He kind of liked how it looked.
Then he frowned and leaned in, examining himself more closely. His lower lip seemed... fatter. More plump. As he watched, fascinated, his face began to change. There was pain, but not as bad as before. He couldn't look away as his nose elongated and his jaw stuck out farther. His lips pulled back, revealing sharp canines. His skin began to darken, first around the eyes and spreading from there.
Then the tingling from earlier returned. He brushed his fingers against his obsidian cheek, no longer even recognizable, and felt something begin to sprout. Hair. No... not hair. Fur.
As he gazed at his reflection, uncomprehending what he was seeing, thick black fur sprouted all over his face. His nose and jaw, now completely changed, were finally recognizable as canine. His ears, he quickly realized, had migrated to the top of his head and were now short and pointed.
Light brown fur sprouted beneath his new muzzle and traveled down his chest as more thick black fur coated the back of his neck, his shoulders, and his sides. He finally looked away from the mirror and down, gasping as his fingers curled up involuntarily. When he was able to unclench them, they were coated in black fur on the back. The fronts were brown, and thick paw pads instead of his palm. His nails had turned into black claws.
He arched his back as he felt something pushing through his skin on his lower back and cried out again. He leaned forward, clutching the sink with his new paws and gasped for breath. But soon the pain faded again. He looked back in shock to see a thick and long tail, completely coated in brown fur. A kangaroo tail.
He looked back in the mirror, a feeling of desperation overcoming him, despite the pleasure still coursing through his body. His head was now that of a Doberman's. He had a tail of a kangaroo. And, as he watched, his legs rapidly turned black and sprouted more fur, both black and brown, all the way down into his shoes.
He pulled open his shorts and looked down at his still throbbing cock. It wasn't fair-skinned anymore. Changed, but still recognizable as a human cock, it pushed out of a fuzzy brown sheath. His nuts were similarly covered in fur. As he gazed down at himself, trying to figure out what had happened to him and what he was changing into, the sheath swelled up and his cock pushed forward a few more inches, popping a fat knot out.
He groaned as he felt the knot swell and reached down to touch it. Still hypersensitive, his cock jerked in his hand and spit thick cum. His musk swelled up in his more sensitive nostrils again as he squeezed himself, gasping with pleasure, all questions momentarily forgotten as his cock jerked in his fingers.
Then he felt the fire grow again. More changes? But it didn't burn this time. Instead, the fire spread throughout him, radiating out, making him fall to his knees as incredible pleasure overwhelmed him once more. He fell to his side, landing on his heavily muscled, furry arm, and jerked, hips bucking against the air, long hair falling about his face.
Then it was gone, leaving him just as the first fire had. And, just like after the first, he could feel himself changing. Only this time, he was growing.
It started as a peculiar tightness in his chest, but expanded quickly from there. He held his arms out in front of him, watching as thick cords of muscle flexed involuntarily and grew, expanding hugely, rippling beneath the skin like snakes. Even through his short black fur, he could tell he was growing incredibly massive.
He rolled onto his back and gasped, arching his back as he felt his belly contract quickly several times. Then his legs, his backside, everywhere. He could feel the bulk, feel how huge and massive he was getting. His feet hurt, but he realized it was because he was growing out of his shoes. He watched as the stitching gave way and two sets of big, fuzzy toes pushed out of the sneakers, until they simply ripped in half and fell away. He had pretty big feet already, but now they were even larger, almost twice as big.
His back throbbed against the floor as he lay back, new tail pushing out to the side. He could feel the tip sliding back and forth over the floor as his back rippled, growing incredibly huge with new muscle, adding to the significant mass already present. His arms soon grew thicker and bigger than his head, especially his biceps. When he flexed, he could see huge veins outlined against the skin, feeding his new, stronger body oxygen and nutrients.
His hips widened, stretching his shorts, until they fell apart, ripping in two as his ass grew larger and hard as marble. His fat cock flopped out, thicker and longer. His thighs looked massive and solid, with pure muscle pushing out against his skin and new fur. He could see the fur around his crotch was longer and thicker than the rest of his body, pushing out from his new sheath in all directions.
The half-Doberman, half-kangaroo's arms continued to grow, huger and huger, along with his fingers. Even his cock was growing, he realized, and moaned heavily as his knot swelled. Before, it was a bit smaller than a tennis ball. Now, it was as big as his fist and still growing. Shuddering as thick pre-cum drizzled from the tip of his mostly-human erection, he reached down and grabbed himself. His cock surged in his hand, growing several more inches in length despite already being rock hard.
Madison felt amazing. His fur sliding against the ground, his paw slipping over his new enormous erection, the way his neck was almost completely gone in the mass of muscle in his shoulders...
He was taller now, he realized as he flexed his legs. At least a foot taller, if not more.
His cock spasmed, spitting thick streams of cum out. They splashed against the fur on his chest, soaking him down, covering him with his new, delicious scent.
His other paw slid over his chest again. His nipples were feeling more and more tender and sore. He squeezed at them, agonizing pleasure shooting through his chest, as he felt another round of changes start.
His chest began to swell. Not with muscle, as before. No, this was something different. He lifted his head and watched as his enormous pecs bloated, growing large and round. Breasts. He was developing breasts!
Panic set in, but any attempt to will himself to stop growing failed. The hybrid groaned as his nipples expanded, growing larger and harder and firmer. His... hir? Hir breasts grew huge, luscious, firm, and round, each one bigger than the Doberman-kangaroo-hybrid's pillow.
More tightness grew in the Dobie-roo's chest. A second pair of breasts pushed up and out, directly beneath the top pair. Covered in the same light-brown fur, all four breasts were gigantic and firm, completely luscious to behold. Thick black nipples capped each, all as big as shot glasses.
Madison shuddered as shi felt across them, then gasped, eyes opening wide as something strange occurred between her legs.
Shi reached down and let out a shattered moan as she felt something behind hir enormous, fuzzy balls. A pussy.
Madison's massive body was too heavy and big with muscles to allow hir to reach too deeply, but shi felt the unmistakable folds of the opening of a feminine sex. Shi shuddered and groaned heavily as shi slid hir fingers back and forth, teasing the lips with the tips of hir fingers as hir other paw gripped and squeezed at one of hir new titanic breasts.
The squeeze elicited more than just a pleasurable sensation. Thick milk dribbled from the tip. Shi gasped and squeezed the nipple tightly, jerking it slowly. Milk squirted out as if from an udder. Shi sighed as the pressure reduced somewhat in hir titanic breasts, but shi somehow knew shi'd never really empty of milk.
Madison's face suddenly felt tight around hir lower lip. Shi looked into the mirror and gasped, bringing both hands up to hir face. Hir lower lip, already tinted black, was starting to swell again. It felt good, but weird, as shi pressed hir fingers against it. Hir lips before were thin and dark, red on the inside. Now, hir lower lip pushed out, permanently swollen and shiny, a permanent pout. Madison loved how it looked. Hir tail wagged behind hir appreciatively as thick milk continued to dribble from hir fat teats, a non-stop stream that helped to alleviate some of the pressure in hir oversized breasts.
Shi shuddered and looked down as another wave of pleasure coursed through hir. Hir cock, now swollen several times its original size, was spurting thick, hot jets of strong-smelling cum. The head of Madison's enormous shaft was nestled up between hir lower breasts, pumping cum between them. Thick rivulets of seed ran down hir sides as shi grasped it with both paws and began to furiously stroke, hips thrusting upwards as shi experienced the longest, most intense orgasm shi ever had. It never seemed to end. More and more cum spat out the tip of hir cock, fed by a pair of hairy balls bigger than hir head.
Madison shuddered as shi stroked hir slick, throbbing erection. It was so big... so much bigger than ever before. Shi hadn't even noticed it growing, but shi was glad it did. The massive, heavy length felt so good as it lay against hir belly, constantly dribbling and spurting white, gooey seed. Shi slid hir fingers up the length, feeling the huge veins pushing against the skin, the way hir urethra felt constantly full of seed... shi groaned and shuddered as shi squeezed the head, stopping the flow. A deliciously tight feeling formed in hir cock.
Madison's eyes widened as shi watched hir urethra swell with seed. Drops began forcing their way out as the pressure built up. Shi panted hard as shi held hir cock tight a few moments longer, before finally releasing. A gush of seed poured out of hir shaft, coating hir breasts, mixing cum with the thick, creamy milk dripping from hir fat tips. Shi arched hir back, delighted at the sheer amount of fluid shi was producing. Hir tail whipped back and forth behind hir as shi fucked hir paws reflexively, unwilling and unable to stop.
It continued for hours. Madison's body continued to grow to Herculean proportions of pure muscle and sex. Hir breasts hung from hir chest like basketballs, all constantly dripping thick cream. Hir massive cock and knot were always erect, always drenched in cum. The pleasure was non-stop, making hir head spin.
The Dobie-roo's long tongue hung from hir muzzle as shi milked hir breasts and cock for hours. Too muscle-bound to fully penetrate hir new pussy, shi had to content hirself with merely rubbing against the lips as best shi could whenever it demanded hir attention. The fires gradually cooled, however, and some portion of reasonableness returned.
Hours and hours of mind-numbing pleasure left hir physically drained. Shi felt ravenous. Madison lurched to hir feet, gasping as even the basic movements caused intense pleasure to roll throughout hir body. Milk and cum dripped onto the floor as hir soaked fur shed the excess, as though shi'd just been in a shower.
Madison headed for the food unit, cock swinging back and forth in front of hir lewdly. Shi grinned as hir paws slid over hir taut, sensitive nipples. There was a good patch of fur at the top of the upper set, shi realized. It was nice, a long patch semi-obscuring hir cleavage.
Shi grinned as shi tore one paw away from hir body to order food from the unit. Shi ate it quickly, then ordered more. Only after four servings was shi satisfied. Leaving the food station â€" shi hadn't even bothered to sit as shi ate â€" Madison made hir way to hir mirror, eager to see hir new body. Shi felt so amazing, any worries or thoughts of consequences barely registered in hir brain by this point.
In fact, the chemicals rewired hir brain, making hir more susceptible to the carnal urges constantly interrupting hir thoughts. Shi was pure muscle, pure sex, pure lust.
Shi could hardly fit hir image in the frame of the mirror. The Dobie-roo loved how shi looked now â€" it was so much better than that weak male shi'd been before. Hir feet were enormous, twice as big as before, and hir legs bulged with thick muscle beneath a heavy coating of thick, dark brown fur. Hir massive thighs looked thick as oaks and as strong to boot.
Shi grinned, sliding thick fingers across hir cock as the Dobie-roo's gaze rose, over hir fat testicles, still roiling with need, and up hir immense cock. It was so big... shi gasped as more thick cum drooled out of the tip. Shi still hadn't stopped cumming. The cock was as thick as hir warm, which was quite impressive, considering how huge hir biceps were. Madison's forearms were streaked with muscles, which shifted beautifully under hir pelt as shi moved them.
Shi pulled hir cock straight up against hir chest, sighing as shi felt hir fur brush against it. It felt so thick and warm against hir drenched fur. The head of the cock could reach all the way up to the middle of hir lower set of breasts. Shi giggled and squeezed hir arms together, pushing the large tits around hir cockhead enjoyably.
Pushing hir cock down a bit, so it pointed straight out, Madison marveled at hir knot. It was so huge! Right now it was retracted back into hir stretched-out sheath, but shi could feel it with hir paws easily. Hir belly looked amazing, the way each muscle was pushed out, with such deep indentations between them. An eight-pack of pure muscle, all the way up to hir massive breasts. Shi shuddered as shi hefted the lower let, feeling the weight of the upper pair flatten against them as shi lifted.
Milk spurt out, splashing warmly across hir shaft and then onto the floor. The Dobie-roo's breasts, coated in light-brown fur, never seemed to stop leaking either. Shi could easily milk them to produce more, just by stroking them with hir paws, but when shi wasn't, they just let out a constant drip of cream.
Shi grinned as shi lifted hir arms above hir head and grabbed one wrist with the other paw. Hir shoulders felt massive â€" they squeezed against hir cheeks when shi locked hir elbows straight up, making hir groan with happiness.
Madison turned around and looked over hir shoulder at the display. Shi grinned at hirself, sharp canines hanging slightly over hir lower lip, as shi watched hir perfect, huge ass squeeze in the mirror, forming twin kidney beans beneath hir long, thick kangaroo tail.
Above, hir back rippled with thick muscles, all clearly defined beneath hir thick pelt. Madison was happy to see the edges of hir massive chest sticking out the sides, visible from behind. Shi growled happily as shi turned back around and started to stroke hir heavy cock, bringing an almost instantaneous orgasm that left hir moaning and panting.
Shi grinned as shi pumped hir hips, sliding hir massive cock through hir paws as cum arced through the air to splatter against the mirror, hiding hir reflection.
The Doberman-kangaroo hybrid needed a playmate, shi decided. Hir thoughts turned to hir ex-trainer. He would be perfect, shi thought. A fitting punishment for such a man, to be hir slave, hir plaything, hir cum receptacle whenever shi felt the urge â€" which was always.
A plan formed in hir mind as shi leaned back into hir cock, relaxing hir much, much denser body into the covers. Shi leaned hir head back and laughed as shi thought of the plan. It was perfect. Hir paws continued to stroke and paw at hir body eagerly as shi lowered hir muzzle to the tip of hir cock and licked at a stream of thick cum, enjoying the musky, strong taste. Thick streams of milk flowed from hir nipples, running down hir furry sides and into the sheets and blankets beneath hir.
Yes... shi would have hir plaything very soon. And it would be so easy...
Shi reached an arm up to the screen on the wall above hir and started recording an audio message. Madison was surprised at the deepness of hir voice, how masculine and raw it was, but also clearly feminine. Shi finished recording the message and sent it to someone shi knew hir old trainer would trust, then leaned back, relaxing as shi casually rubbed hir over-muscled body, smearing thick cum over hir fur.
* * *
It was two weeks later. The drop at Jupiter went well. Nobody there even needed to see hir, so Madison just had the automated ship dump its load, minus one box. Shi'd spent most of hir time working on replicating the chemical mixture, when shi wasn't playing with hirself.
Shi'd also spent some time working with the computer to have some clothes replicated. Shi felt the urge to put on some skimpy and teasing clothes, the kind shi'd never have dreamed of wearing before hir transformation. But now...
Madison grunted as shi pulled a large, cylindrical piece of silicon from hir pussy. At least four inches across and a foot long, it was barely keeping hir satisfied any more, but the computer couldn't create silicon any larger.
Shi sighed as shi tossed the improvised dildo into the corner and started milking hir breasts, closing hir eyes as they released the milk quickly and easily. Although they constantly dripped cream, shi still needed to empty them at least twice a day, sometimes more. Same with hir cock. Shi had a constant, aching, greedy erection that leaked thick pre-cum at all hours. Blue balls were an issue shi took care of gladly, however, and constantly walked around giving hirself a little rub.
The ship was now heading back towards Mars, but Madison overrode the controls so it would just hover above the planet. A local company rented ships, so shi would have one sent up, automated. Shi'd instructed hir real estate agent to sell hir house and buy a secluded, large place on the outskirts of the terraformed world, where shi could have more privacy. Shi'd take the shuttle to it, then have Trent, hir ex-trainer, come by.
He thought he would be meeting a government bureaucrat who could get him out of his legal trouble for a bribe. Trent had no idea what trouble he was getting into, though, and Madison smiled at the thought of his expression when he finally saw hir. Hir cock stiffened up again and spat a few spurts of cum onto hir belly as shi groaned. Shi couldn't stand the wait.
After relaxing a few minutes longer, the hybrid lurched out of bed and padded towards the closet. By now the computer should have finished the new clothing specifications. Shi felt hir nipples ache with excitement as shi pulled out the clothing.
Ah... excellent. Fluid-resistant, soft and slightly stretchy, and large enough to fit hir huge new body. Most importantly, among the clothing were several pairs of heavy-duty bras, panties, dresses, pants, blouses, and other assorted items of clothing. An entire new wardrobe.
Shi smiled as shi pulled out a pair of black panties and slid them over hir legs, pulling them up around hir massive balls. The waistband wrapped tightly around the waistband, making hir moan as thick cum slipped from the tip and started to flow down hir shaft. The tight fabric wrapped around hir knot, exposing it incredibly well.
Shi pulled out a matching bra next. The Dobie-roo hybrid's furry upper breasts disappeared behind the cloth as shi struggled into the garment. The bra was a little on the small side for hir, but it was the largest the computer could manage. Shi struggled to fasten the Velcro in the back, then sighed as shi looked at hirself in the mirror. Vast amounts of breast pushed out the top and bottom of the bra. Shi pulled out a matching bra, then put it on the same way around hir lower set.
Hir nipples felt so good when the fabric rubbed over them. Madison shivered, moaning a little as thick milk pooled in the bras, staining the semi-resistant cloth with thick cream.
The Dobie-roo grinned as shi pulled out a tight cocktail dress, cooing delightedly as shi quickly pulled it over hir muscular body. It stretched and strained, and shi nearly ripped the hems before shi managed to get it over his huge chest. Shi slid hir cock underneath the fabric as shi pulled it down. The stretchy white dress felt so good wrapped around hir cock like that. The bottom of the dress only came halfway down hir thighs, leaving the bottoms of hir testicle-filled panties hanging out in full view, as well as almost all of hir thick legs.
Madison growled hotly as shi felt hir cock stiffen. Shi looked at hir reflection in the mirror and grinned, paws on hir hips. Shi looked good. No, not good. Amazing. Hir cock started to throb visibly through the fabric of the dress, staining it again with cum as shi bit hir fat lower lip, pleasure making hir knees shake.
A few accessories finished the look for hir. A white leather collar and wristband, some white see-through pantyhose, and huge white shoes. Shi couldn't wear high heels because shi weighed so much now, but these had nice inch-high soles.
Shi giggled as shi posed in front the mirror playfully. The massively muscled Dobie-roo even pulled hir heavy cock out from under the dress and let it flop around. Shi looked so good and twisted and sexy. Madison smiled as shi pulled the dress off carefully and rummaged for another.
Shi spent a lot of hir trip this way â€" modeling new clothes, finding new styles and designs, some utterly girl-ish, others more fitting of a dominatrix, some similar to hir old clothes, such as a nice, snug suit shi tried once.
The trip passed quickly and before shi knew it, shi was back at Earth. Abandoning the tiny confines of the transport ship, shi transferred hirself and hir clothing to the waiting rented atmospheric vehicle and headed for hir new home. Madison called up hir realtor on the comm â€" audio only, of course â€" to make sure everything was as shi specified. Shi was grateful again for hir frugal ways, which enabled hir to get a nice, secluded house ready so quickly with barely a dent in hir savings. Especially the modifications the Dobie-roo hybrid had installed: larger showers and baths, several drains, and marble flooring. Automatic floor cleaners were installed in every room of the house as well.
Upon arriving at hir house, Madison did hir best to clean up the mess in the rental vehicle best shi could â€" hir nipples constantly dribbled thick milk and hir cock wasn't much better. It didn't take much to set a few gushes of musky, thick seed out the fat, always-erect cock. But shi enjoyed it, and couldn't wait to get hir plaything to help with hir constant need for release.
Shi put away hir clothes in the closets (auto-cleaning of the clothes followed quickly, another useful feature for the extremely messy creature) and set about exploring hir new home. Large, expansive, open, with plenty of light and the luxuries to which shi felt entitled.
The canine-kangaroo's tail wagged back and forth behind hir, beneath the hem of a skimpy little cocktail dress, as shi headed from the kitchen into the living room. The floors felt nice and cool under hir feet, though shi could see outside it was well over 50 degrees Celsius. Shi flopped into a plush, oversized recliner and moaned a little as hir cock slapped up against hir rock-hard belly, splattering cum over hir breasts. The Dobie-roo's fingers immediately curled around hir cockhead, groping the monstrous erection roughly as hir tits pumped out thick milk. Shi gasped as cum began to gush from the fat head of hir immense cock, knot forming quickly as shi came hard. Shi'd managed to avoid cumming in the rental vehicle, but it took a lot of willpower to avoid jacking off for more than an hour or so.
Shi sighed as shi leaned back, luxuriously stroking hirself off, moaning as hir cock throbbed against hir belly, pumping heavy loads of thick cum over hir dress. Hir massive arms flexed as shi squeezed and stroked up and down the too-thick cock, heavy balls hanging off the edge of the chair below.
Madison grinned dumbly as shi finally relaxed, hir cock only barely pulsing now. With hir needs satisfied for the moment, shi headed to the shower while the self-cleaning room began the process of mopping up the mess the massive creature left behind.
Shi stepped into the shower after discarding hir dress and got hirself cleaned before heading to hir closet. Shi picked one of hir favorite new outfits: a black garter belt with pantyhose and a cute little black bow, along with a mesh top that fit over hir breasts really nicely. There was a void of material down the middle in the shape of a "V," allowing hir furry, light-brown cleavage to show through magnificently.
Shi piled hir long black hair above hir head and used a few hair clips to hold it up, then grinned at hirself in the mirror. Hir cock throbbed, sticking out several feet horizontally, dripping onto the floor. Above, hir hard, toned, eight-pack of a belly ran up into hir massive breasts, all four squeezed by the tight mesh top. Hir huge shoulders and arms looked completely out of place with the girliness of the outfit, not to mention the way the pantyhose clung to the muscles in hir legs.
Shi shuddered as hir cock hardened up a touch more, rising into the air a few more inches. A thick jet of cum arced onto the floor as shi moaned excitedly.
The final touch was a thick coating of ruby-red lipstick across hir lips, covering the black protrusion. Shi adored how large hir lower lip was, and just hir lower lip. It stuck out so nicely, thick and full, a fitting complement to the deep black fur on hir muzzle and the light brown fur on hir throat. Shi coated hir nails and claws with a similar shade of polish and smiled at the mirror, loving the effect the dainty, feminine shade lent hir massively muscled body.
Only an hour or two until hir plaything would arrive...
Madison turned all the lights off and hung a note at the entrance of hir home. It was programmed to allow hir ex-trainer in, then to lock tight behind him. He'd follow the lights of the hallway into the living room and find a vial there, full of the same chemical Madison took. But only a half-dose, not the three full doses shi took.
Then shi would come in, when the new bitch's need would be greatest, and shi would claim hir pet as hir own... Madison's cock throbbed and hardened up completely, spurting great thick gobs of cum onto the floor as Madison staggered backwards into the wall, the thought alone making hir orgasm hard.
The big, muscled Dobie-roo gasped and smiled, shuddering with delight as shi thought of all the wicked things shi'd be able to do with a pretty, submissive little pet... shi shuddered once more and quickly hurried out of the room to finish hir preparations.
Shi'd managed to synthesize more of the chemical, but it was time-consuming and took most of the trip. Shi carefully pulled the vial from the metal box, which shi'd left in the living room after unpacking, and set it on the coffee table in front of the recliner. The high, white walls reflected the late evening sun nicely, giving the glass vial a beautiful sparkle.
Madison was almost tempted to take more of the chemical hirself... but there'd be time enough for that later.
Shi'd only just managed to get out of the room, get the lights off, and shoo away the cleaning robots when shi heard the chimes rings, indicating someone was at the door. Then shi heard the door open and swiveled hir ears towards the noise. Madison's nose crinkled. Shi could smell him now. Hir lips curled into a smile as shi patiently waited, ears tracking the human's movements.
He found the vial then. Madison left it open, so shi knew the smell was thick and irresistible. Shi heard him pick it up, sniff it, then the satisfying clink of glass on glass as he set it back on the coffee table.
Within minutes, Madison heard a thud and deep moans of pleasure. Shi peeked out of the kitchen and watched in fascination as hir ex-trainer began to change in front of hir eyes.
He was never as big as he'd been, but shi could see the chemical working its way through him, making him beefier and bulkier. He ripped away his clothing, lust overtaking him. Soon, he grew a pair of plump and perfect breasts â€" but only one pair. He â€" or rather, shi â€" soon grew fur all over: black, for the most part, with the same pattern of light brown as Madison had, over the breasts and sheath and inner legs. Madison's erection throbbed as shi watched hir new toy develop more fully, the changes going quickly. Soon the new Dobie-roo hybrid was jacking off lustfully. Madison grinned as shi watched the hybrid cum. Although hir cock wasn't as big as Madison's, it was still much larger than ever before, at least a foot long and several inches across.
The new herm's body shivered with pleasure, leaking milk and cum from tits and cock. Madison could see the glistening folds of the other's pussy and shivered with delight at the thought of penetrating that smaller body, filling it up completely, owning it totally.
Cum splashed onto the floor between hir legs as hir cock hardened and throbbed with need and desire. Shi could smell hir pheromones and watched with satisfaction as hir soon-to-be pet's nose sniffed the air, new ears swiveling towards hir.
Now, then. Now was the time to claim this animal as hir own. Madison stepped out of the kitchen quickly, throwing open the door as shi took a few steps into the room.
"Well, now... looks like someone got their just deserts," shi said, grinning viciously at the newly transformed Doberman-kangaroo mix.
"What... what's happened?" the creature moaned, cock still spurting thin streaks of cum onto the floor. Hir eyes focused on Madison, taking in hir massive figure, from hir huge, ripped arms and legs, hir titanic breasts, and massive erection.
"I decided I needed a pet, and I of course thought of you," Madison said, sliding a paw down hir length, making a spurt of cum splatter out onto the floor. "How could I forget my old trainer in my time of need?"
"Ma... Madison? You're... Madison?" The new hybrid shuddered, overcome with lust at the sight of the much larger, much more physical herm, as hir nostrils flared, taking in Madison's thick and powerful scent.
Madison's ruby-red lips widened in a grin as shi saw the obvious effects hir pheromones were having on the smaller hybrid. "Yes, I'm Madison, and now you're my pet," shi said, hir voice a low, throaty growl. "How do you like your new body? Not as big as mine, of course, but still pretty good for a worthless slave like you, I think."
"Slave? No... no, I'm not... ooooh..."
"Hush now, pet. It's time for you to start performing your duties," Madison said, grinning madly. Hir cock throbbed powerfully, almost cumming from the sight of her old trainer reduced to a sniveling, lust-filled creature like hirself.
"But... but I can't..." The trainer's eyes locked on Madison's achingly hard cock and shi licked hir lips, watching it bob up and down, only a few feet away. Shi was trying to fight the urges inside hir, Madison knew, but shi also knew shi would fail and succumb to hir desires. The scent alone, Madison knew, would drive hir new pet wild before long.
"I think I'll call you Tiny," Madison said. "Since you always were the smaller man. Now why don't you come and give your mistress a kiss?" Madison suggested, wrapping both paws around hir fat cock, hefting it up into the air. Hir pet's eyes never left the fat, deep red head as shi squeezed out a few thick dollops of cum onto the floor. Shi felt so good, so powerful, so in control as shi flexed hir legs and arms, gasping with pleasure as shi nearly came right there. Madison loved having a pet already.
Tiny's tongue hung out as shi tried to resist, to run away, to do anything, but the pheromones were riddling hir brain with lust. Already hir body felt so good and thick and the sight of Madison's enormous frame made hir feel so strange and light-headed... so good...
Tiny shook hir head and moaned as hir paws wrapped around hir cock. Shi couldn't help hirself as shi jacked off eagerly, furred paws sliding up and down hir foot-long shaft, squeezing around hir new knot before slipping up to caress the head. Shi came hard, achingly hard, as shi stared at Madison, lips smacking together, the taste of those addictive chemicals still on hir tongue. The same scent was coming from Madison's cum, which was slowly pooling around the huge hybrid's feet.
"Good girl... come on now," Madison cooed encouragingly. Hir paws slipped up hir cock a bit, pushing out another thick arc of seed. Shi was impressed with the speed of Tiny's transformation, but then, shi'd only taken one-sixth the dose, so it would finish more quickly. Still, the Tiny looked good. Thick muscles, nice breasts, a thick cock, and a firm, tight little bubble butt.
Tiny scrambled closer on hands and knees, unable to resist anymore as the scent of Madison's arousal flooded his new, more sensitive nose. Hir muzzle went to Madison's cock immediately, kissing and licking at the underside frantically.
The touch of Tiny's tongue was enough to push Madison over the edge. Shi leaned down and, using a powerful, large paw, pulled hir new toy's face right up against hir cock as shi came hard. Hir orgasm felt so good, especially since it was brought on by another animal like hirself. Hir lust took over as shi came and came, jacking hirself with one paw as shi held Tiny roughly against hir massive cock, soaking hir down in cum.
Tiny surprised Madison by drinking and slurping as much of that thick seed up as shi could, even trying to wrap hir muzzle around the larger herm's huge cockhead. Tiny's paws gripped at Madison's thick thighs through the pantyhose, barely able to make a dent in all that muscle.
Madison grinned, watching hir new toy suck down hir seed, pleasure coursing through hir. Shi released Tiny and used both paws to stroke hir massive shaft, happy to pump more cum out for hir pet to drink.
Hir flood of cum soon slowed to a trickle, however, and the massive canine-kangaroo mix pushed Tiny back, shivering happily. "Very good girl," shi cooed again, smiling. "Now, what do you say?"
"Tha... thank you," Tiny gasped, kneeling in front of hir. Shi had hir palms flat on the floor, rump resting back on hir heels, as shi gazed up at Madison, tongue hanging out. Madison liked the view of Tiny's erection and cleavage, enjoying how submissive hir old trainer turned out to be. The perfect pet.
"Good Tiny, good girl," Madison said, smiling again.
"You taste so good," Tiny said, licking hir fingers clean of seed. "I can't get enough..."
"And you never will," Madison agreed. "That was part of the plan. I knew you'd never be able to resist the treat I left out for you, and this seemed a fitting way to punish you for what you did to me."
"Yes... yes," Tiny moaned, sucking on hir fingers. "I've been very bad."
"Yes, you have, but you'll make it up to me," Madison said. Shi scooped up a handful of cum and, holding hir fingers down, let the seed drip into Tiny's muzzle. The new hybrid opened wide, whining as shi waited for each drop before smacking hir lips, eager for more.
Madison watched hir new toy beg for even a drop more of cum and sighed happily. The computer had been right â€" shi was addictive. This was working out very nicely. Shi leaned down and stroked Tiny's head. The new hybrid's head fur was short, unlike hir own long, black hair, shi realized. Shi liked that.
"I want you to go get dressed now," shi said, standing back up. "Down the hall there, on the right, find something sexy to wear. There are clothes in the closet." Shi pointed and the Dobie-roo stood up, tail hanging down low.
"Yes, Madison," shi said, head down. "Then... can I... do that again?"
"Maybe," Madison said, grinning widely. "If you're good and if you look sexy enough." Shi smiled as the half-Doberman, half-kangaroo turned and trotted off down the hall quickly. Madison growled as shi saw the other herm's tight, hard ass wiggle back and forth beneath that thick tail, and shi felt hir cock get a bit harder once more.
Madison sat down in the recliner, resting hir massive arms on the armrests as shi waited. Shi didn't have to wait long, but by the time Tiny returned, hir cock and tits already drooled out enough cum and milk to soak down hir chest and belly and most of the chair. The mesh top did nothing to stop the flow of milk from hir aching, fat nipples.
Madison moaned deeply when Tiny came back in. The smaller herm wore a small pink dress. It wrapped around hir large breasts well, surrounding them in cloth and lace, leaving only the tuft at the top of hir cleavage visible.
The dress ended mid-thigh, but Madison could see hir pet's thick erection tenting out the hem of the dress. Tiny also wore a pair of white pantyhose that went up hir thigh, and a pair of high heels on hir surprisingly dainty feet. Shi had a pink bow in hir hair and a wide, dark red sash around hir hips.
Shi stood in front of Madison, head down, and curtsied. Madison about came again right there â€" hir cock tensed up warningly, but with some heavy breathing a little focus shi was able to avoid soaking hirself down right then and there.
"Oooh.. ah, good girl," shi moaned, engorged cock throbbing heavily against hir lower tits. "You look so pretty..."
"Thank you," Tiny said, curtsying again. Hir ripped arms looked disconcerting where they emerged from the puffed up shoulders of the cute dress, but Madison thought it looked delicious.
"Why don't you come sit on your owner's lap?" Madison said. Tiny eagerly scrambled up to straddle Madison's hips. The smaller herm was maybe six, six and a half feet tall, while Madison was well over eight. Hir arms dwarfed Tiny's, both in size and amount of muscle.
Shi wrapped them around the smaller creature's body and pulled hir in close, gasping as hir fat, huge shaft pushed against the other's dress. Tiny, for hir part, was already rubbing hir hips forward eagerly and had hir paws sliding against Madison's aching nipples.
Tiny instinctively leaned down and kissed at each of Madison's nipples. Madison felt hir pull back the taut mesh and wrap hir lips around each in turn, drinking the thick milk eagerly.
"Oh... yes, good pet," shi said, shuddering. Shi felt so good, having another milk hir for the first time. Madison's paws slid over the back of Tiny's dress, then over hir shoulders and neck, pulling hir muzzle more firmly against hir wide, thick nipple, filling the smaller herm's muzzle with thick cream. "Drink it all up now... that's a good girl..."
The smaller herm gasped as warm, thick cream flooded hir muzzle, making hir crave more and more thanks to its addictive qualities. Madison's paws squeezed the Dobie-roo hybrid's hips easily, able to lift the muscular Tiny easily. Tiny's legs squeezed against the sides of Madison's hips tightly as shi whined with need around muzzlefuls of cream.
"Yes... good girl," Madison moaned as Tiny continued to suckle on hir thick nipples, more milk squeezing out with ever lick. "You lusted after my body before, but now you have no choice, my little bitch..."
Madison's cock throbbed with need, spitting out hot handfuls of cum, soaking down the front of Tiny's dress. Madison groaned heavily as shi pulled the other herm's hips upwards, until hir pet's cock slid against hir massive breasts and hir rump wiggled just above the tip of hir spurting shaft. The big herm's body bulged with tissue, hard as steel.
"Oh... oh yes," the huge Doberman-kangaroo gasped, feeling Tiny wriggle against hir body. "Spread those legs, pet. Spread them nice and wide for me."
Madison pushed the tip of hir cock against Tiny's new pussy and moaned again as hir cock surged forward, hips thrusting powerfully. Though shi intended to take it slow at first, hir body had other plans, and shi thrust hir shaft upwards heavily, piercing Tiny's pussy.
The smaller herm screamed with pain and pleasure as Madison's paws pulled hir down roughly, filling hir with huge amounts of thick and throbbing cock. Madison didn't stop until hir huge knot bumped up against Tiny's pussylips.
Worried momentarily shi'd injured hir new pet, Madison sighed with relief when the other creature started to buck, going into a frenzy. Tiny's cock spat out thick ropes of seed as Madison slid a paw up hir belly to paw at hir full breasts, groping at them roughly as shi bucked upwards, pounding hir mammoth erection into the smaller body. Tiny shuddered and humped back down, mind blank, no thoughts besides those of pleasing hir master.
Madison groaned as hir fingers dug into the cloth of the dress hir pet wore. Shi loved how it looked, draped over that smaller, muscular body, hiding somewhat the enormous erection spreading that tight pussy so wide.
"Oh... god, my little bitch is so tight," Madison grunted, squeezing Tiny's sopping wet thigh and stockings. "So eager for my cock, aren't you?"
"Yes, yes, yes!" Tiny cried out, screaming hir passion as shi flexed hir legs, pushing off before riding hir way back down, using gravity to fuck Madison as heavily and as hard as shi could, lust and need dominating hir senses. Shi tipped forward, spilling over Madison's huge breasts, and began to suckle greedily again, unable to resist filling hir muzzle with hir master's thick milk.
Madison growled as shi pulled Tiny's dress up around hir hips, exposing the smaller herm's dark brown rump and deep red erection. The hybrid's pussy was completely stretched by Madison's huge erection, shi saw, and it looked good. It felt even better, and shi thrust in again, burying hir cock up to the knot in the all-too-willing Dobie-roo's tight pussy again.
The bigger herm slid a paw around Tiny's rump, squeezing it heavily, digging hir blunt claws into the other's ass, and used the other paw to grip the back of Tiny's head. Madison rolled over then, flipping Tiny onto hir back in the large recliner. The back of the chair went mostly flat as shi kneeled on the edge, feet bracing against the floor. Shi pulled hir hips back and began to thrust in hard, over and over, spearing the smaller body deeply as Tiny's arms wrapped around hir neck.
Madison pushed her lips to Tiny's, groaning into a kiss. Tiny's thin lips opened as Madison's plump lower lip coated them in saliva. The wet, hot kiss went on forever. Tiny's teeth grazed the plump, lipstick-clad lip on the huge Dobie-roo.
Madison humped forward hard, pulling back several feet before each thrust, completely filling Tiny with cock. Tiny could do nothing but kiss desperately at Madison's muzzle, sucking on that thick lip, hard enough to take the lipstick off and smear it around.
With the amount of cum Madison was pumping into Tiny's body already, it wasn't long before the smaller hybrid's belly began to expand. Muscles slowly lost their definition in Tiny's belly as it grew larger and rounder.
Madison moaned, huffing and panting as Tiny began to just about chew on hir lower lip. It felt so delicious, the way the smaller body pressed up against hir so willingly, so eager to taste hir, to take hir in, to let hir do whatever shi wanted to do.
The thick muscles in Madison's thighs pushed out as shi ground forward again. Hir knot pushed up against Tiny's pussy, stretching it just a bit more. Tiny cried out, arching hir back against Madison.
"You're going to take it all, bitch," Madison growled roughly, kangaroo tail waving back and forth rapidly behind hir furred bottom. "I'm going to tie you, and you'll be mine forever."
"Yes... I'm yours... I'm yours..." Tiny kept repeating the phrase, over and over as Madison's deep thrusts continued, stretching hir wider and wider, loosening hir up for the thick, wide knot. Tiny's mind was completely dissolved by now, replaced with nothing but lust for Madison: hir cum, hir milk, hir body, all of it. Hir paws slid over the bigger herm's backside, feeling the rippling muscles beneath the thick pelt. Scent invaded hir nostrils, driving hir mad.
Madison pumped thick loads of cum into Tiny, a nonstop orgasm that hadn't yet peaked. It wouldn't, the big Dobie-roo knew, until shi knotted hir bitch. Shi shoved hir hips forward, legs straining. Shi moaned as shi felt Tiny's pussy stretch impossibly wide, wrapping around the lower part of hir thick knot. Shi pushed hirself up by gripping Tiny's shoulders, at the same time holding the smaller creature immobile by the sheer weight of hir much larger, much more powerful and thick body.
Tiny's eyes rolled back in hir head as shi arched upward, round belly sliding against Madison's. Madison knew it was now, now that shi had to do it, to knot with hir new pet and claim hir once and for all.
Rearing back, Madison plunged in one last time, eliciting a deep and powerful moan from the body beneath hir. Hir claws pierced the pelt and skin of Tiny's shoulders as shi pulled them down, forcing hir body to compact somewhat. Muscles strained and flexed as the huge Dobie-roo hybrid thrust forward, grinding hir hips in. Hir heavy balls, hanging below, dripped with cum, soaked to the skin with seed that squirted from hir pet's pussy.
Hir fat knot slowly stretched Tiny's abused feminine sex, working its way into hir by the inch. The smaller hybrid tried to move, to wriggle back, to do anything, but Madison's vice-like grip kept hir immobile as the much larger, more massive herm continued to push. Nothing would stop hir now.
"Yes... yes, my bitch!" Madison cried out. Hir legs ached with the strain as shi pushed in harder than ever before, but shi was rewarded when Tiny's stretched pussylips finally crested the halfway point and, instead of resisting hir knot, sucked it in.
Collapsing against hir pet, Madison's eyes shut tight. Hir massive breasts spurt milk against the chair as shi buried hir pet's cries of pain and pleasure in hir cleavage, muffling the noise. Madison held hir body still, staying on the edge of hir never-ending orgasm, teetering on the brink of absolute release. But Tiny's twitching body made hir ache for that sweetness and shi started to move again, quickly humping forward, hir knot tugging at Tiny's pussy.
Tiny's smaller body felt so good around hir cock. So tight, so warm, so nice... Madison's paws and wide arms wrapped around Tiny's arms and backside, holding hir in closely as shi started to make short, quick thrusts. But it was only a few seconds of this before Madison's eyes went wide.
Shi tipped hir head back and started to keen with pleasure, a long and low roar that reverberated throughout the house. Though shi never stopped cumming before, it was a mere drip compared to the torrent shi unleashed on Tiny now.
The smaller herm's belly swelled hugely within moments as torrents of seed gushed into hir body, locked in by the fat knot distending hir hips. Tiny's legs hung limply as Madison pushed in, hir throbbing cock emptying itself inside the other's body.
Madison's roar finally quieted, to be replaced by grunts and moans, elicited unwillingly from hir throat by the sheer force of hir final orgasm. Hir hips twitched, pulling back instinctively as shi flooded hir pet's body with seed. Shi could feel Tiny's swollen body against hir and squeezed more tightly, gasping as more pressure was applied to hir swollen erection. More and more cum flooded out of hir shaft, until there was nowhere else for it to go. Shi could feel it back up inside hir cock, swelling hir urethra with pressure.
Hir heavy balls, swollen with desire already, grew huge and fat, expanding with hir cock with unreleased cum. Shi shuddered as shi leaned into Tiny, hir massive body weight keeping the smaller herm immobile.
The hybrid's orgasm lasted for many long, long minutes. Even after the best of it passed, Madison could barely summon the energy to lift hir head.
Shi sighed with pleasure and shuddered, feeling how backed up hir cock felt. Shi leaned up a bit, shivering with pleasure, and looked down at hir pet. Tiny looked tired, completely exerted, but hir eyes stared at Madison's with unconditional love.
"Good girl," Madison said, moaning lightly.
"I did good?" Tiny asked, a smile playing on hir lips.
"You did very good," Madison said, sighing happily. "Very, very good."
"Mmm... you're so big!" Tiny giggled girlishly, making Madison look at hir, surprised.
Tiny looked completely happy as shi lay back, tired, paws limply hanging from Madison's shoulders, but the big herm realized hir eyes looked different. Shi was besotted, unable to care for anything else, Madison knew. Completely, totally hir own now. Hir special little pet.
Madison rolled onto hir side, pulling Tiny gently against hir, shuddering as shi felt the smaller body twitching against hir. They were both soaked with cum and milk and Tiny occupied hirself by slowly licking at hir wet nipples, cleaning them.
It was only half an hour later Madison felt shi could remove hir knot from Tiny's body. Shi grinned at hir pet, whose stamina had returned in the downtime. Tiny's tail wagged behind hir as shi gazed at hir mistress, adoring hir.
"Steady now, pet," Madison said. Shi rolled over a bit, until Tiny was underneath hir again, and, holding the smaller herm's hips tightly in hir paws, starts to pull out.
Tiny whimpered and gasped, gripping Madison's shoulders tightly, as the bigger herm pulled back. Madison's arms bulged with muscle as shi pushed at Tiny's hips while pulling back hir own. Slowly, inch by inch, hir fat knot, only about half as large as when shi popped it into hir pet's pussy, withdrew.
Grunting, Madison pulled back hard and with a loud, long wet slurp, the massively muscled Doberman-kangaroo was able to slide hir knot and cock out of hir pet.
The pent-up seed exploded from hir tip as shi pulled out, making hir gasp and shudder with pleasure. Gallons of cum splattered inside Tiny's pussy before Madison was fully withdrawn. The rest gushed over hir pet's body, coating hir once more with thick, white, pungent cum. It rolled down Tiny's distended belly, mixing with the milk on the recliner.
Tiny's hips bucked as thrust at the air, more gallons of seed gushing out of hir body, no longer stopped up by Madison's enormous shaft. Tiny's pussy spasmed as orgasm after orgasm wracked hir body.
Madison watched, amused, as hir pet's body contorted, legs pulling up and pushing out, the dress ruined now. Long gashes had shredded the backside and the front was soaking wet, plastered to Tiny's teardrop breasts. Even Tiny's toes curled and uncurled as thick cum drained from hir body, flooding around Madison's paws and flowing to a drain in the corner.
The muscular herm grinned widely as shi stretched, raising hir arms above hir head and flexing each part of hir body once over, ignoring hir pet for the moment. Hir thick cock spurt long arcs of seed, still as hard and throbbing as ever.
Madison scratched at hir ears with hir claws as shi left the living room, leaving hir pet moaning and groaning on the recliner. Time enough to play with hir bitch later, shi thought to hirself. But one pet would never do... no... that wouldn't do at all. Though Tiny would always be hir favorite, hir cock was already getting hard again, not that it ever got soft.
Shi thought back to hir days on the competitive bodybuilding tour and smiled. Shi had a few friends left who would make fine additions to hir stable... a bit more of the chemical mixture for them, and soon they'd be just as addicted and cum addled as Tiny. Yes, that would do nicely â€" a stable of permanently horny, addicted cum dumpsters for hir to fuck, day in and day out. They would worship hir muscles and hir cock, drink from hir aching nipples, keep hir satisfied and satiated...
Madison smiled widely as shi imagined a herd of hungry sluts, dressed in uniforms, eagerly waiting their turn for hir cock to fill them up, day after day, a never-ending orgy of muscled, overhung bodies grinding and sucking hir...
The moans of hir first pet drifted to hir as shi began to record a message to one of hir old rivals on the circuit. In a few days, shi'd have enough of the supplement to change him. Hopefully Tiny would last on hir own until then.