Robert smiled to himself, admiring the muscular form of the unconscious otter on his rack. He's always wanted that body, and the small rabbit would finally take what he wanted, and then some. Checking his inventory, he had everything prepared and ready, and it was time to begin the procedure. Robert began with a gentle rubbing of the sleeping lutrine's nethers and crotch.

Arik woke up, finding himself strapped to a rack, naked and unable to do much more than squirm, and gently stimulated by a small bunny he vaguely recognized. Poked and proded and manipulated until his member was stiff and firm, the rabbit paused to gently prepare the otter's tailhole, lubing it up with a slick substance that gave the otter a pleasent warm feeling, before gently stretching with a finger, then two, then three, poking and proding to judge the otter's reaction.

Arik squirmed with a soft groan, his thick ruddertail arching upwards, showing himself off. It's clear he's had this kind of stimulation before, Robert nodded to himself, before pulling out a special toy, an internal applicator and sliding it teasingly into the otter's rump, pushing it slowly without intent to harm or cause discomfort. Arik groaned softly, trembling, instinctively squeezing down around that toy as it fills him up, the buff otter trembling as he was held, helpless, in the rack. He felt the toy bottom out, then heard and felt a click as it connected to the rack, holding it in place.

Squeaking in satisfaction, Robbert then worked quickly, setting the anal applicator to squirt some liquid into the otter's innards, a warm fuzzy feeling spreading out from the gut as the pleasure became a hazy cloud. With only a few moments to go, the rabbit makes a few measurements, feeling up Arik's muscular form, giving a few licks here and there. The otter groaned out softly and happily, his eyes lidding deeply as the warm pleasure filled him.  His occasional instinctive struggles went still, the lutrine relaxing back into the rack.

With the tests done, Robert began to gently manipulate the otter's balls, examining closely for signs of... something. A tense feeling across the otter's body would grow as the warmth spreads to the otter's entire body, whiskers to webbed toes. Judging the moment is right, the bunny would descend upon the lutrine's cock, licking the head a few times to stimulate it. Arik shuddered, a thick spill of precum oozing up from his balls, ready to drool down the underside of his cock... only to have the rabbit's tongue lap it up eagerly.

Tasting the salty pre of the otter, the rabbit would reach down to the device in the otter's tailhole, activating a small slow vibration in the applicator and an increased squirting of the fluid inside, before returning his focus to bobbing his small lapine muzzle up and down the otter's cock, not letting a single drop of pre escape. Arik moaned loud, gasping as the pleasure made him start to buck despite the rack.  His hips ground forward as much as they were able, thrusting against Robert's muzzle, pre flowing freely for him to lap up. The rabbit continued to bob his head up and down, tasting the thick otterock and stimulating the head with his tongue, fondling the lutrine balls with a free paw. 

The growing tense feeling sunk deep into the otter's body, the warmth in his middle turning into a heat, a pleasent burning sensation slowly filling him up. Arik moaned out loud, shuddering at the bunny eagerly bobs over his swollen cock, his balls throbbing as his pleasure grows...along with that building heat!  The otter trembles in the rack, his breath coming harsher and harsher as he spirals toward his peak.

Noting the otter's moaning and shuddering, Robert decided the time was right, shoving Arik's cock deep into his muzzle and down his throat while he repeatedly pressed the vibrating applicator further into the lutrine's rump, pressing against the prostate until one last push, letting it flood the otter's innards with one last gush of the fluid. The otter cried out helplessly with his bliss, straining against the rack as he cums, and cums hard, emptying his heavy nuts down the bunny boi's throat in thick rope after rope of musky, fertile ottercum.  His hips bucked with each throb of his straining cock.

Robert closed his eyes as the otter's cock shoots it's thick load down his throat directly, bypassing his muzzle. Arik continues to shoot, the strange tightness filling his body increasing along with the hazy heated pleasure as he began to lose muscle tone, the thick pectorals losing mass and flattening, the otter's wide shoulders slowly narrowing and sinking in, the cobblestone of his abs becoming flatter. Arik did not even notice it through the haze of heat and pleasure, just feeling his balls clenching, his cock spurting again and again, his climax seeming to go on forever.

The bunny continued his ministrations, feeling the seed flow from the otter's cock and balls and into himself, feeling his own heat as he gains an inch, then two, then three of height, his shoulders stretching wider, his chest becoming deeper as the muscularture once on the otter transfered to the rabbit. As his seed continues to shoot down the lapine's throat, a deep heat and pressure filled Arik's innards, the otter losing height and mass with every spurt. The  once thick biceps slowly shrank down. The otter's head lolled senselessly as climax went on and on, pleasure and heat flowing through his veins like pure fire.  He kept shrinking, his body diminishing as the rabbit's grows larger and larger, the lost masculinity of the otter translating directly over to the bunny. The otter's tail also shrank and became a small nub while his small ears stretched, seemingly wishing to shed excess heat as they became hot, and the lutrine feet slowly stretched outward. 

Robert growled gutterly as the rack holding the shifting otter in place adjusted itself automatically to keep the now much smaller and twinkish otter in place, his own cock now firm and dripping as the heat in the otter's balls becomes unbearable, feeling a pulling sensation as the lutrine's cock continues to shoot, until they dwindle away to nothing. Arik shuddered, groaning helplessly cock started to diminish, slowly shrinking and becoming oddly more sentistive, receding from Robert's throat into his muzzle, where the bunny's tongue would lick it as it shrinks. The pleasure overloaded Arik's mind though, and he did not connect the dots that despite Robert not pulling back, his cock no longer reached down the bunny's throat, that he felt the lapine's tongue over more and more of his shaft all at once.

With a last spurt and swallow, Robert drank down the last of the male essences from the former otter, the once impressive cock reduced to a small nub. Arik had a brief moment at the end of the orgasm, before being hit by a wave of needy heat from his crotch flowing over his form, making the last few adjustments until the former otter was fully a rabbit, a shifting sensation forming in Arik's gut as organs re-arrange, his butt swlling and hips aching as they widen, and a small passage opened up in the new lapine's crotch, a small gush of feminine fluids flowing out as the wave of pleasure reaches a crescendo, then left him gasping out loud, shuddering as he momentarily clear headed.

Arik shook his head as it cleared, taking stock of what has happened to him.  The pleasure he felt was alien, his body was even more so. He gasped again in surprise as he cought sight of the now-buff rabbit, and his own, diminished lapine form, complete with a lack of anything at all masculine between his legs, just an opening and a slick, hot, wet need. The now much larger and muscular rabbit grins as the other bunny took stock, and gently rubbed Arik's now flat stomach for a moment.

Robert then reached off to the side and grabbed a new injector, which he then insertedroughly into Arik's new cunt with surprisingly no pain. The muscular bunny grinned a moment, letting it sit before squeezing the applicator, a quick squirt of some new liquid flooding the new anatomy before pulling out the injector, which left Arik feeling an aching emptyness in its place. 

"While that takes effect, lets see you use your new muzzle" Robert said with a pleasured grin. He rubbed his now impressive cock and adjusted the rack, bringing the cunnybunny to eye level with the impressive rabbit cock, which was much larger than his now lost ottercock. Arik blinked, squirming as the scent of the rabbit's maleness filled his twitching nose.  He found it strangely enticing, and it sent another twinge down into his achingly empty nethers.  "Ohh, g-god..wh-what did you do to me?" he moaned. Robert growled, and rubbed his already dripping and slick cock into the smaller bunny's face, roughly rubbing the tip against the muzzle.  The scent of it drove Arik wild as the warm ache slowly began to return in the former otter's belly. He whined helplessly, but his muzzle opened on instinct at that eager ache deep inside of him. The small bunny pressed forward, and took the thick shaft between his lips to pull the male's meat into his muzzle.

Robert grunt in pleasure, roughly taking command as he humped the smaller bunny's muzzle, and easily hit the back of the throat with meat to spare. The thick salty pre tasted just right to Arik, but stoked that internal fire, the burning need growing. Robert thrust a few more times before he pulled back, and with a groan, he came, the spicey scent of his seed splattering all over the twink bunny's nose and face. Where the thick spurty ropes landed, Arik's fur discolored from dark brown to white. The new bunny groaned as his muzzle and face was painted white with Robert's cum, muzzle open with tongue hanging out to catch as much of that potent and fertile cum as he could, his form shuddering with need.

Robert panted a moment, then paused to admire his new muscular form, giving time for the last bit of Arik's induced heat take effect. The muscular rabbit rubbed his biceps and chest, exploring the new crevices of his body before making some muscular poses. After a few moments, Robert readjusted the rack and inspected the other bunny's quivvering cunt, poking and proding once again before he bent over - far more over than he did before - to lick at Arik's muff a few times, gently stimulating the clit and allowing that mating urge to fill up his victim. Those licks made Arik moan, his hips twitched in an attempt to get more, more stimulation, more tongue, more feeling against his achingly empty cunny.  

Robert grinned to himself, then pulled back from the cunnybunny's muff and adjusted the rack once again, lowering the height and straddleing the smaller bunny, the feeling of being so much larger caused his aroused cock to twitch a moment, before he slid his thick member into the waiting slit, pausing partway to grin before he slammed the rest in, his large lapine balls slapping against the cunnybunny's rump. In that moment, Arik's aching need is satisfied, the thick cock sliding deep inside of him made him groan out with bliss as he was filled.  "Oh, god, yes!"

With a deep grunt, Robert pulled most of the way out before he slammed back in to the other rabbit's cunt, then repeated the motion, picking up speed as he became used to his much larger form. He huffed as he got close to orgasm, the simulation of watching the other bunny shrink, his own growth, and the blowjob already had him on edge. His much larger paws reach up to tweak Arik's still male nipples, and growled softly, "Yes, that's it. Accept it. Feel that heat grow, gonna put it out," he said as he continued to pound the rabbit's crotch, "You're going to look so lovely with a swollen belly".

Arik gasped softly,  "I c-can...g-get pregnant like this?"  He squirmed and attempted to pull away, but is cut off by an eager moan as Robert pumpped into him, rational thought drowned out by the feeling of a thick cock grinding against all sorts of raw, needy nerve endings, of being stretched around Robert's swollen girth.

The muscular bunny grinned as he replied, "Yes, you will, and... urgh", he stopped speaking, interrupted as his hips jerked, balls pulled up, and his monsterous cock unloaded into the cunnybunny's passage, filling and flooding with potent lapine seed, spirting out of the smaller rabbit's slit and dripping down. Arik shuddered and moaned, the thick ropes of cum spurting into his tight cunny quenching that burning, needy heat deep inside of himself, body trembling. The twinkish bunny ground back as much as he could, but moaned when Robert pulled out leaving him feeling empty, the larger rabbit's cock out still spurting, thick ropes of seed landing all over the tied up rabbit, the almost hot liquid once again turning the dark fur into light wherever it landed, seed trickling down Arik's thighs and rump, drooling from his well-used pussy.

The larger rabbit breathed heavily for a moment before quickly regaining himself, and gently rubbed the smaller bunny's belly as a strange warmth and pressure begins inside an unfamiliar place as the chemically-enhanced womb quickly quickens and swells. Arik gasped as he watched his belly expand, though with a litter of kits or with something else, he wasn't sure. The sight of Arik's form rapidly becoming gravid restored Robert's flagging cock, the large rabbit quicky removing the vibrating toy in Arik's rump before he flipped the rack over, orientating the bunny face-down, and able to see the slow swelling of his stomach while his ass is exposed. Even despite the strange feelings and thoughts, the scent of the other male and the hormones raging through his system was strong enough to make the cunnybunny's tail flag, baring his rear passage for the other rabbit.

With a grunt, Robert prodded the stretched tailhole before he slammed his cock in, stretching the smaller bunny's innards far more than the toy did, then began to hump and fuck the bunny's butt as a pleasent pressure in Arik's stomach grew, the swelling slowed as his womb became filled with a quadruplet of bunny kits, nearly to term. With a jolt of pleasure, the cunnybunny discovered his prostate was still in existance as the Robert continued to hit it repeatedly. Arik pants hard, and moaned out loud with each thrust into his tailhole, his body squirming with pleasure.  As his belly finished swelling, the smaller bunny felt his new kits kick and move, especially with that thick cock buried deep inside of him.  "Oh, f-fuck...f-fuck me, bunny..."

Robert grinned and continued to do so, thrusting and humping widly until with a gasp, he came hard, flooding the bunny's innards with hot liquid, again pulling out to let the thick and hot ropes of seed fall on the other rabbit's back, discoloring the fur on the smaller rabbit's back and butt with the splatter pattern. With one final spurt, Robert pulled back and sat on a nearby chair to admire his work as the rack rotated automatically to bring the pregnant bunny to an upright position.

Arik blushed deeply as he took stock of his situation: species changed, androgynous, an aching, dripping cunt between his legs, cum splattered white with fur in lines, streaks, and spots, and a belly full of a litter of rabbit kits.  He panted softly. Robert grinned lazily, enjoying his new size and admired what he did to the other rabbt. "Seems like a fair trade to me, at least," he said with a confident drawl. Arik glared back, "How the hell is this a fair trade?"

"You seem to be enjoying it quite well," Robert replied, and got up from his chair to rub a large paw across the smaller bunny's nethers. Arik squirmmed helplessly, his hips twitched instinctively into the tease. The muscular rabbit continued to gently rub, stimulating the tried up rabbit's nethers. "Does this not feel good, feeling the weight in your middle, the kick of the cubs, the pleasure of being fertile, of in heat? The freedom of movement and lightness, except," he rubbed the taut and swollen belly, "the feeling of your skin pulled so tightly?"

Arik shuddered, moaning softly, and a tremble worked its way down his spine.  "Nnngh..."  He couldn't bring himself to say "no," but he couldn't allow himself to say "yes," either. Robert grinned again, "Ah, but how silly of me," he says, before he walked off to another table for a moment, the heavy footfalls of his large lapine paws revealed where he stepped when he went out of view, "Forgot the last step," he said from beind the rack as he slid a visor down the other bunny's head, covering the eyes. 

Arik blinked, then squirming as the visor is brought down over his head.  "Wh-what is this?!?" Robert gently rubbed the bunny's ears, "Don't worry," he said as he flicked the visor on, a swirling pattern of lights suddenly obscuring the other bunny's sight, "Just relax and look into the light. Doesn't it feel good," he said, reaching down and stroking his victim's nethers, "Doesn't it feel good to be a bunny?"

Arik blinked...and whines softly, hips giving a twitch.  No...he shouldn't give in.  It felt good, but he was an otter!...right?

The larger rabbit continued to rub and stroke the nethers with one paw, and gently caressed the taut bloated kit-filled belly with the other, "Doesn't this feel good? So good to be a bunny? Just relax and let the pleasure wash over you, because it feels so good to be a horny bunny with a big tummy." Arik groans softly, giving his head a shake.  No...he just had to not give in.  Not give in to the pleasure of feeling good to be a bunny...a mommy bunny, at that...

Changing tactic, Robert moved his paws to the new bunny's sensitive ears, and stroked them in a way only another rabbit could know, "But it does feel good, yes? Just listening to my voice and watching the lights, and feeling the pleasure. Doesn't it feel good to be a horny bunny, with a dripping cunny, and a nice swollen belly full of kits? Didn't it feel good to feel that heat, to be bred, to be filled? Doesn't it feel good?"

"Ohhhhh...f-fuck...y-yesss..."  Arik shuddered helplessly, the lights boring into his eyes, into his brain.  It felt good...to be a horny breeder bunny...

Robert nodded. He had the other bunny, and continued to rub the other rabbit's sensitive ears, "So, it does feel good, doesn't it. Can you tell me, what are you, what feels good?" "F-feels good...to be a breeder bunny...to have a bellyfull of kits...to be bred, over and over and over again..."

The larger bunny smiled, and pulled off the visor, looking into the smaller twinkish cunnybunny's eyes, "Do you want to be my breeder bunny for forever, to always be full of kits, to be bred," he strokes the nether regions on the word bred, and with ever repition, "over, and over, and over again?"

Arik nodded, panting softly.  "Yes...if you'll be my daddybunny, I'll bee your breeder..."

Robert grinned. "Good boy."