Clinical Trial & Error

Story by Sandoval on SoFurry

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Hey, only took me half a year to write a new story. Standard disclaimer applies; lots of adult material, don't view if you're not of legal age in your state, province, or country, etc. etc. There's, uh...lots more kinks in this one, so take a look at the tags. I know it won't be everyone's cup of tea, but here's hoping you enjoy yourself anyhow.


Clinical Trial & Error


Six blocks east of the Main St. grocer, third floor of the old brick office building. There's no sign, it's the only glass door on that floor. Pardon the mess.

Vik furrowed his brow at the instructions -- he'd written them down, sure, but it was pretty much word-for-word what the secretary at the clinic had told him. The young lion ran his fingers through his unkempt mane, nearing the six block mark. This was an older part of town; most offices and that had moved out of here long ago as the commercial center developed on the other side of the city. As far as Vik could tell, nearly all of the old early-to-mid century buildings over here were abandoned, and in various states of disrepair.

Still, when he had walked far enough he saw only one building that was both brick and had three or more floors, so he walked in the open front door. The lights were on, and a disinterested-looking ferret sat behind a cheap desk, idly twirling her hair and reading a magazine. She didn't even glance up when she spoke. "Clinical trials? Third floor, stairs are at the end of the hall on the left."

Vik nodded. Realizing she wasn't looking at him, he stammered out a hurried thanks, an awkward pause hanging over the room. Blushing somewhat, the lion shook his head and made off down the hallway towards the stairs.

Every step closer to the office, every stair and every landing, got Vik questioning his resolve. The campus paper had been advertising a clinic running preliminary drug trials, and the cash seemed pretty solid for what it entailed -- show up, do some drug tests, fill out surveys about it for a few days, get money. The college lion was scraping by, so he figured some extra income on the side would give him breathing room without detracting too much from his classes. Thus he'd called the number, gotten his weird directions from the gal on the other end, and showed up. Still wasn't like any clinic he'd seen before, though...

The third floor was in the same sort of vague disarray that permeated the rest of the building he'd seen. Many of the offices were obviously unoccupied, doors hanging open and empty desks pushed against far walls. Vik nearly tripped over a ratty cardboard box stuffed full of empty file folders in the hallway, barely catching himself on the wall. With a frustrated glare, he stalked around a corner -- he'd all but had it with this place, it was waaaay too sketch. Right before him, though, was the glass door, as per the instructions; the lion stopped and cursed under his breath. A moment's hesitation in the hallway saw the lion arguing to himself whether or not he wanted to go through with this, before he threw his hands up and strode towards the door. Money was nice, and he'd already walked all the way out here.

At least it was a bit cleaner inside. The lion faced an unattended desk covered in loose papers and forms, a flimsy-looking rolling chair placed in front of it. The old carpet in this room at least looked as though it had been vacuumed recently, and an open door into a series of rooms stood just behind the desk. Vik took a seat, the chair wobbling beneath him. It was warm enough in the office to work up a sweat just sitting around; he couldn't help but figure the building was too old to have proper air conditioning. He tugged on the collar of his t-shirt and waited, a faint rustling in the back rooms assuring him he wasn't the only person here. He noticed a cheap-looking bell under some papers, and brushing them away he rapped it with his paw. A crisp ding preceded a voice from the back room. "There in a minute! Have a seat!"

Vik checked his watch, then crossed his arms and leaned back, looking around. A few cheap art prints hung on the wall and a sad, wilted looking plant sat in the corner. The entire scene looked vaguely depressing and disused, but before the lion could soak it in too much longer a smiling figure strode into view. A fairly short husky dressed in scrubs and a white coat walked up behind the desk, reaching over it to offer a paw in greeting. "Hey there! Dr. Larson, glad you could come in. Sorry about the state of things right now, my administrative assistant called in sick today so it's kind of a one-man show."

The lion shook the offered paw, nodding. "Vik Dresson, yeah. I, uh...well, I expected something a bit different, if I'm honest."

The husky smiled apologetically, "Yeeaaah. Think of it this way: We're not a clinic in the sense that we diagnose folks and write prescriptions, we're more a private research firm. Obviously our space isn't much set up for receiving visitors, because we so rarely have them."

"That's fair, I guess." Vik said, "So, uh...what's the procedure from here on? I wasn't exactly filled in over the phone past 'show up.'"

"Alright, let's see...you're the only appointment for the day, so we can really take this at your pace. Lemme just, uh..." The doctor scrabbled around the desk for a moment, picking up several blank forms and questionnaires, and excavating a clipboard. "Here, start by filling these out. I'm gonna be in and out while you're doing that; I gotta get a few things put together in the exam room."

Vik took the offered clipboard, eyeing over the various forms thereon. The first several seemed like fairly standard medical history forms; no, he didn't have diabetes, no, there wasn't a history of osteoporosis in his family, yes, gramps had a stroke...the lion filled it out line by line, hardly noticing when Dr. Larson bustled in and out of the reception area. The last form, though, seemed much more tailored to the actual trial. Page after page of waivers, releases, and oaths to hold the clinic blameless in the event of the unforseen preceded a fairly simple checklist. Vik looked it over, then glanced up and waved down the preoccupied Doctor. "Uh, excuse me, Dr. Larson? What's this one...?"

The husky glanced at the form, then smiled at the lion. "Easy -- we're running a number of trials concurrently, so you pick and choose which are applicable to you on that list there," He said, "And we're doing rates per trial, so if you can sign up for a bunch of 'em you'll get paid for a bunch of 'em. Hell of a deal, huh?"

Vik nodded, then looked over the checklist. A couple seemed fairly normal -- blood pressure regulators, pain killers, that sort of thing -- but about a third of the way down the page Vik saw an entire subsection labeled "Training/Athletic/Physical aids," with such entries as metabolism enhancement, flexibility, nervous stimulus response...Hell, thought the lion, here to make bank anyway. With a faint smile he checked off every box on the list and handed the clipboard to the doctor.

Dr. Larson glanced at the lion's choices and whistled with a smile. "Like to test the water with both feet, eh? Come on this way, we'll get you set up and get started." The husky gestured for Vik to follow him, briskly striding into the back rooms. The two passed a number of doors before the doctor opened one, pushing the door open but remaining in the hallway. "Alright, Mr. Dresson. I'm going to go get the materials together and file this paperwork real quick, you go ahead and change into the medical gown on the table there and hang tight." In almost no time at all, he had walked off, leaving the lion alone in the exam room.

Vik paused a moment, shrugging his shoulders before closing the door and looking around. It was an exam room, alright, but a bit...off. Lacking the normal anatomical charts and other wall decor, everything seemed very sterile, and the exam table looked...well, it wasn't a regular exam table; Vik was no expert on exam tables but he could decidedly see something amiss with this one. A number of restraints adorned the sides of the table, and underneath was a series of pulleys and cables; it almost looked like some sort of bizarre weight machine.

Eh. If it was important the doc would explain it, the lion was sure. He peeled his t-shirt off and set it on a corner chair, and then followed with his shorts and boxers, blushing a bit to himself. The lion was fairly fit but not the model of physique; his dark, almost auburn mane trailed around his head and down his chest a bit in stark contrast with his much lighter body fur. He chuckled a bit, one paw reaching down to briefly squeeze and adjust his fairly average package -- he just always felt a bit awkward getting naked in front of medical staff, even if they saw this sort of thing day in and day out. He unfolded and donned the flimsy medical gown, feeling sillier than before as he looked over its light green and pink floral pattern. Truly, he surmised, the manliest gown of all.

By the time the doctor returned several minutes later, Vik had rummaged through a few of the cabinets, making himself an impromptu drum set out of boxes of nitrile gloves and tongue depressors. The lion faced away from the door, open gown providing the entering doctor a full view of his bare ass and twitching tail as he hummed and tapped. He dropped his impromptu drumsticks and whirled around in surprise, however, when the husky announced his presence with a curt cough. The canine's curled tail bobbed back and forth behind him as he smiled, holding a wide tray loaded down with small, multi-colored vials. "A magnificent performance, sorry to cut it short. Can you clear off the counter where you were, uh, drumming, though? I need to set this down."

Vik blushed again, mumbling apology as he moved boxes and containers, clearing a space for the tray. He blinked as he noticed the sheer number of vials laid out. "Wow, that's...lots of 'em."

"Hah. You did sign up for everything. If you wanted to change your mind, I reckon now's the last time for it." The doctor looked up to him, putting on a pair of gloves and fastening one of the vials to a sleek-looking jet gun. "I know this thing looks all sci-fi, but trust me: If we're doing repeated injections it's gonna be faster and less painful."

Vik was silent for a few seconds before shrugging and nodding again. "Yeah, I'm still in. And I think I've seen those injector thingies on TV before; didn't know they were a real deal." He scooted backwards and hopped into a sitting position on the exam table, ankles crossing and un-crossing nervously.

Dr. Larson nodded, approaching Vik on the table. "They're real! They mostly see use in mass-vaccination scenarios, though. Arm, please."

A subconscious rub preceded the lion offering his arm, but once he did it was the quickest jab with the jet gun before the doctor was unscrewing the vial and affixing another. Vik went back to rubbing his arm, which while not sore was somewhat...tingly. He looked up to the husky inquisitively. "Uh...what'd that one do? Or am I not allowed to know which one's which?"

"Oh, sorry. That one should improve tactile feedback and muscle response time -- y'know how different your hands feel when they're really cold versus how they are normally? We're trying to get that sort of jump in sensation and dexterity at normal temperatures for folks with minor to moderate nerve damage." The doctor scratched his head for a moment, then smiled apologetically, "I hope that made sense. I'm terrible at analogy. Do you feel anything yet?"

The lion shook his head, glancing down at the exam table again. "Nah, nothing really yet. What's with the table? I've been meaning, uh..." Vik paused, rubbing sweat from his forehead. Damn, he wished this place had A/C. "...I've been meaning to ask what the restraints and pulleys and that were about."

"Oh, it's for some tests. See..." The husky set down his vials, walking over to the table. He reached underneath, switching a few levers. "...it kind of acts like a weight-based restraint system. Good for measuring resistance and relative muscle development." He pulled on one of the restraints, and it slid out of the table, trailing a black cord. When released it snapped back to place, and the doctor grinned. "Helps in physical therapy too, but I don't reckon we'll need to use it today. Unless you wanna mess around with it a bit while we're waiting for symptoms to kick in? Like a Bowflex, but endlessly more expensive."

Vik smiled along with the doctor, nodding agreement. He swung his legs over the table and laid flat, extremities extended. He couldn't help noticing how nice the cool, smooth metal felt, especially given how warm it was...the lion's jaw hung open the slightest bit and he started panting. The cool relief felt really nice, he determined...he almost didn't notice Larson pacing around the table, fixing the heavy velcro restraints to his wrists. He felt 'em, though...the texture of the cuffs tingled electric against his fur and skin; not quite tickling per se, but enough to send shock waves down his spine. It sent shock waves elsewhere too, and the lion blushed yet again as he felt a stirring in his groin, an unnatural warmth flooding his body. It took two repetitions of the doctor asking if he was alright before he answered with "...warm. Way warm. Tingles." The words vaguely registered as his, and the lion knew he should be more articulate than that, but...damn. Everything just felt...amazing.

Dr. Larson furrowed his brow for a second, then nodded. He retrieved a thermometer and paced to the foot of the table, gingerly pulling the lion's legs apart and lifting the medical gown. His smooth, gloved hand stroked up the inside of the lion's thigh, eliciting a low moan from the supine patient. With a small chuckle, the doctor reached Vik's crotch, lifting the warm, tan sac out of the way, briskly inserting the thermometer into his subject's flexing tailhole. A choked gasp escaped the lion, and every muscle in his body seemed to clench at once, as he writhed on the table, breath coming hard and fast. Larson watched the lion's sheath swell rapidly, glistening pink length nearly rocketing out of its containment, depositing a sticky clear trail of pre-cum along his stomach, pulsing and throbbing once it reached its full, hard length of six and a half inches. Vik pulled on his restraints, attempting to reach his aching shaft. The weights weren't set too high, so his progress was slow and steady, but the doctor leaned down and flipped one switch, ratcheting the restraints back in place and effectively fixing the lion's wrists in place. Larson retrieved his thermometer, accompanied by another series of pleasured noises, before returning to his tray.

Well within parameters. Nothing to stop over.

Vik panted and moaned on the table, scarcely a thought on his mind that wasn't lustful at that moment. His struggles atop the table felt better than any massage he'd ever gotten; any incidental breeze felt better than the best blowjob he'd received, and when the doctor penetrated him with something so small as that thermometer...well, he'd only bottomed for a couple guys, and he was drunk each time...but he was certain it never felt like that before. If only he could reach his dick; he knew he could find release with just one or two squeezes, but these restraints...he saw the doctor messing about, but didn't really mind. He felt that sharp prick on his arm a couple more times, and one or two on the inside of his thigh. He heard a few short gasps to his side, and had he the wherewithal to check he'd have noticed the doctor pressing the jet gun against his own arm for a few of the injections.

"Vik. Mr. Dresson. Can you hear me?" The doctor stood at the foot of the table again, looking up across his patient. The lion eventually grunted some fashion of 'yes,' nodding sluggishly. "Very good, Vik. The sensitivity should be scaling back so it's less...distracting here, soon. That said, it's time to test a few other traits..." Dr. Larson spoke as he prepared a few things for his next tests,efficiently stripping the medical gown off of the lion, leaving Vik exposed atop the table before smearing medical lubricant all over one of his hands. Approaching the lion again, he reached between those tense legs, outstretched, slick hand moving right for the lion's tailhole.

There the doctor smeared the lubricant across Vik's entrance in slow, circular motions, gauging the lion's reaction and steadying one leg with his free arm. Soon he pressed two fingers against that hole, feeling just how warm the lion was as the entrance slowly stretched open and welcomed them in. The lion's ring tensed and squeezed in a steady rhythm around the doctor's fingers, and in no time Larson was wiggling them around, making the lion moan again and again. He pressed a third, and finally a fourth finger alongside the first two, and while the hole never lost its tightness it readily accepted the new additions, sliding over them as swiftly as it had the first two.

The doctor pondered for a moment, massaging the lion's prostate while he did so. The smell of pre-cum and sweat mixed with that of medical instrumentation and sterile lube; and the lion's neglected shaft pulsed hard and heavy with every heartbeat. The husky didn't have much of an eye for lengths, but it looked like it was easily up to nine inches now and still throbbing longer...but enough distraction, there was more to check. He tucked his thumb against his palm and pressed his hand forward, the lion's tailhole soon stretching further than it ever had, engulfing the doctor's whole hand to the wrist...but it wasn't enough; the lion still felt a needy desire, and rolled his hips into the doctor's arm. Larson nodded and made a number of mental notes as Vik's hole practically sucked his arm in, inch after inch disappearing into the lion's rear as steady, desperate muscular contractions worked to get more inside him.

Larson braced his free hand against his patient's knee and slowly extracted his arm, which by that point had been engulfed in the lion's ass up nearly to its elbow. Vik whined, a piteous sound, as his flexible tailhole was left empty and wanting. The doctor paced over to the counter, peeling off his gloves and draping his coat over the chair by Vik's clothes. He scratched out a few quick notes and looked up, smiling. "That should do it for now, unless you had any questions? Something to add?"

Vik could hardly formulate a response; once the doctor's arm had been pulled out of him he felt a void, almost as colossal as his sexual desire right then. He'd never had anything penetrate him like that before, much less something so large as a whole arm...if he knew it felt so good he would have done it sooner, no doubt. Still, per the doctor's say-so earlier he was becoming a bit more lucid, so he could manage a few words. "Nnf...need...please, doc...something..."

Nodding, the husky swiftly and smoothly pulled his scrubs off, soon standing naked by his patient with his curly tail bobbing excitedly behind him. He never got tired of this part...well, in fairness, he never got tired of any part of these trials, but this part always gave him a bit of an electric tingle of excitement. Humming acknowledgment to the lion, Larson pressed the jet gun to his thigh, grunting a bit as he gave himself another injection. Thinking for a second, he shrugged and pulled the trigger again -- no sense doing these trials if he wasn't pushing the boundaries a bit.

The doctor sauntered to the foot of the table, clamoring up onto the polished surface with a hungry look in his eyes. He ran one paw through the soft white fur of his stomach, lingering only briefly before squeezing his bulging sheath. As if waiting for that signal, the tip of his red cock sprung forth, already dribbling an obscene amount of pre-cum and leaving a slick, clear trail the length of the table as Larson crawled closer and closer to Vik. The canine's shaft throbbed anticipation as he drew nearer, bulging and expanding with every heartbeat while the pendulous sac swayed back and forth, swelling and growing heavier itself.

Placing a paw on either side of the bound lion, Dr. Larson leaned in close. He slowly dragged his blunt claws across Vik's chest, eliciting a squirm and a moan, before edging his hips closer and closer to his patient. The husky ground his engorged cock against the lion's own, both parties groaning in pleasure as the lion's barbed shaft teased and stimulated the canine's. Both stomachs were rapidly getting matted down with pre, and the heady masculine scent of the two permeated the room.

Vik looked down along his front, amazed at the sight that greeted him. As the husky panted, groaned, and ground against him, Vik's sight was fixed on the two rubbing cocks -- his own had nearly doubled from the modest length he was normally used to; nearly a foot of pink, glistening lion cock was being pressed into his stomach and chest over and over, but the doctor's was even more impressive. Nearly eighteen inches, and still bobbing and throbbing larger in the excitement, with equally impressive melon-sized balls hanging low behind it. Vik let out a low, needy moan, looking at the husky's equipment and grinding his hips upwards, hoping to get the message across as he angled upwards. He tugged his arms, only to find them still fixed in place, and whimpered, wanting to do more yet still slightly titillated at his helplessness.

The doc noticed the lion's humping motions, and pulled his hips back with a sinister grin. Using one paw to align his tapered tip with the lion's slick, needy tailhole, the husky took a deep breath and, ever so slowly, began to rock forward. The tip pressed in easily, spreading Vik's hole wider and wider with every passing inch, a low trailing moan from the patient accompanying the slow penetration. The lion's rumpcheeks pushed outwards, spreading on either side of the member, and with a sudden roll of his hips Vik speared himself forward on that dick, stretched ring twitching and squeezing around the beer can-thick head.

Larson leaned in close, his body pressing warm and firm against the lion's, barbed shaft sandwiched between the two of them. The doctor licked and nipped at Vik's neck, working upwards until he was licking at the lion's ear, where he whispered, a low, guttural sound. "Mmm, you like that, don't you Vik? You love being wrapped around this cock, don't you? You love being stretched..." the husky tensed his member at that word, the cock bulging thicker within the lion as he spoke, "...around it? Tell me how much you want the rest..."

Vik whimpered a bit and squirmed underneath the canine. He blushed at being talked to that way, and even more so when he found himself answering in a shaky voice. "Y-yes...I want the rest, doc, I -- nnnf! -- I need more in me, p-please..." He lacked the leverage to really force his hips downward, but that didn't stop him from trying.

"Good boy..." The doctor said, pressing his hips forwards again, crawling upwards along the lion's body as his shaft sank slowly, inexorably into the lion's taut hole. The husky closed his eyes and exhaled shakily, the combined sensations of the lion squirming and moaning below him, the hot, wet, and tight confines of the ass his shaft was sinking into, and the cool feeling of the metal table as his swelling balls came to rest behind him, ever growing and eager to deposit their contents in the writhing tawny-furred male below the doctor.

Dr. Larson paused about halfway into his patient, propping himself up for a second. Looking downward, he saw a rounded bulge in the lion's stomach pushing the barbed shaft upwards at an angle, and he grinned. Using one paw he caressed Vik's face, then drew the lion's attention downward, using the paw to rub the bulge his cock was causing, drawing a whole new round of panting and moaning from the lion. He grinned, holding his hips in place and savoring the sensation of the lion's tight passage, those interior muscles squeezing and rippling around the massive invader, seeming nearly to suck it further into the lion. More than happy to oblige, the canine began bucking his hips, forcing several inches in at a time, Vik's intestines stretching and rearranging themselves around the giant husky cock as it plunged ever deeper, bulge traveling up the lion's front.

Soon the bulbous knot at the base of the doctor's shaft nestled firmly against the lion's straining ring. The husky chuckled, teasing his hips forward to test the resistance of the stretched ring a few times, each push getting a grunt out of Vik. Soon, though, those hips began pulling backwards, sliding the thickness out of the lion, which was answered by a piteous moan. Larson waited until the lion's moan was just starting to trail off before ramming his hips forward again, shaft sinking all the way back to the knot in one swift motion, cutting off the lion with a choked gasp. The doctor began repeating the procedure, wet, squelching sounds soon filling the room as he pistoned into his patient over and over, copious pre filling the lion's passage, making a sticky mess of his ass and the doctor's crotch. Vik closed his eyes and breathed heavily, warm feeling returning, though this time only to his torso. He could feel his tailring stretching with each thrust, insistent knot pushing closer and closer with each wet, hot impact.

"That's just over two feet," The doctor grunted out in time with his thrusts, "of cock, lion. How's that feel, then?"

Vik could hardly answer, much less wrap his head around how much was really inside him at that moment. He just nodded yes, panting approval. As the knot pressed against him over and over, though, he looked up, making eye contact with the doctor. "Aahh...t-tie me...need more..."

Larson just grinned, eager to hear it. Pulling out nearly to the tip, the doctor paused for just a moment before slamming home, bulging knot straining against the lion's ring for a split second before sinking into that hungry ass with an audible pop, hole clenching firmly behind the knot as it swelled further, locking the two together. The doctor resisted the overwhelming urge to hump shallowly at his patient, letting the lion just feel it for a moment, pulsing and throbbing within him, molding him to its shape. Vik's eyes opened as he felt the shaft pulse and stretch...was it...was it still growing? A nervous whine exited his mouth as his interior walls squeezed around the husky's length while the doctor ran a paw down the bulge which now trailed the entire length of the lion's front. Tongue lolling out of his mouth, though, the doctor finally gave in to his body's urges, humping feverishly with what little leeway he had, the sensation soon building past the point of no return, his eyes lidding shut as his climax overtook him.

The first jet of cum hit Vik nearly as hard as the doctor's thrusts earlier, and with an alarmed "Aah!" he tensed up, squeezing his tailhole around the pulsing, spewing member. Over and over he felt those hot, liquid jets bursting into him, and he laid his head back on the table, breathing heavily as he started to feel fuller and fuller, warmer and heavier with every passing moment. Several moments seemed to pass like this, the pulses from the doctor's cock eventually spacing further and further apart, but losing none of their potency, lion's belly stretching and straining to contain everything the doctor was pumping into him. He opened his eyes again, looking down his front and letting out a trailing moan as he saw what was becoming of his body.

The lion's belly domed out from his body, stretching and quivering with each hot, powerful spurt from the doctor's cock. His belly stood out nearly a foot from where it used to when he opened his eyes, and as he watched wordless it swelled out even further, easily doubling in size and soon preventing the lion from being able to see his own neglected cock.

Dr. Larson panted heavily, arms shaky as he propped himself up, leaning a portion of his weight on the lion's bulged and straining belly. Smiling, the husky began rubbing small circles along its taut expanse, prompting more desperate moans from Vik, and causing a few spurts of pre to erupt from the barbed member, now standing nearly vertically as a result of its position against the lion's massive gut. Chuckling at the sight of it, the canine leaned down, tentatively licking the head of the lion's member, sensitive barbs dragging along the dog's tongue, which caused Vik's whole body to tense, squeezing the pillar lodged in his tailhole, which in turn caused an unexpected moan from the doctor, balls seizing again once, depositing another several cups of his hot seed within the lion.

This began a vicious cycle. The doctor leaned in, beginning lightly to suck on the lion's throbbing, pre-soaked member, reveling the feel of the barbs scraping the inside of his maw, hot pre dribbling across his tongue. The lion tensed at each new sensation, in turn forcing more out of the doctor and broadening his already colossal belly. Something had to give eventually, though, and the pleasure soon proved too much for the exhausted lion, his orgasm hitting him like a tidal wave of sensation and relief.

It hit the doctor like a wave, too, the husky's eyes shooting open in surprise as the lion's thick, sticky seed was fired into his maw, cheeks bulging momentarily before he swallowed reflexively, huge gob of spunk depositing heavily in his own stomach. Larson grinned, suckling on the lion's spasming shaft as it fired over and again, one paw resting on his own stomach as he started to develop his own sloshing potbelly. With a gasp, though, the husky pulled his maw off of the thick pink cock, which continued spurting cum into the air, a shot or two spattering against the ceiling, the rest growing weaker as the lion's spunk made a mess of the room, no small amount landing in the fur of both males, making the room smell even more heavily of sex.

The two just sat there for some few minutes, catching their breath, until a pronounced gurgling emanated from Vik's stomach. Vik opened his eyes and looked at his body, confused for a moment, while the doctor just glanced at the wall clock and nodded, wiggling his hips a bit and tugging backwards. It would still be a few minutes yet until he could pull free...best to watch what was happening, for now. He rubbed his paws over the lion's quivering stomach, listening intently as it groaned and gurgled.

Vik looked around nervously. Should it be doing that...? He figured nothing that had happened to him thus far was supposed to be able to happen, so he'd given up making guesses about what was coming next. He felt warm, though, and a bit...slow. Feeling almost tired, the lion let his head fall back against the table, gurgling in his gut rising to a fever pitch. Though he was no longer watching it, the lion's belly began to slowly recede, body digesting and processing the excess of husky spunk at an alarming rate, and picking up speed with every passing moment.

Doc Larson looked on, tail wagging behind him, as the lion's firm pecs softened visibly, bulking out and becoming doughy and soft. Vik's arms rounded and thickened, laying heavy on the metal table, wrists soon bulging around the once barely tight enough restraints; his legs soon followed suit, thickening and becoming flabby. The lion panted as the new bulk distributed across his once-slim frame, extra chins developing along his neck as it thickened and bulked out, rump becoming plump and round while his stomach slowly normalized -- still notably bulged out from where it used to be, but now more in keeping with the bulk on the rest of the lion's body. The doctor grinned at the sight, rubbing the lion's spunk across the much-swollen body below, watching the lion's belly and legs jiggle noticeably at his touch.

The doctor's own stomach gurgled then, and he looked up at the clock again. His own metabolism booster would be kicking in soon...placing a paw on his comparatively small rounded stomach, he frowned. There was no way he had ingested enough for his body to be able to handle it...he knew he had some foodstuffs tucked away in the fridge in the back, though, maybe he should hurry and get that. With a few experimental tugs, he rolled his hips backwards. The lion's tailhole strained in protest, stretching slightly. The doctor's pulling became more insistent, the lion below him moaning and whining, wanting the warm, massive cock lodged in him longer...but soon the pressure became too much, ring stretching around the softening knot and clutching feebly at the shaft as it withdrew from Vik's body. Nearly three feet of red, glistening cock drew free from the lion's body, bobbing and shrinking in the relatively cool air of the office. Larson couldn't help but chuckle as he watched the lion squirm a bit, whine at the sudden emptiness, and then slowly grow still as he drifted off -- no doubt, the lion's body had worn itself out, not expecting and certainly not conditioned for what it had gone through so far that day.

The husky licked his lips idly as he prepared to hop off the exam table, tasting again a bit of the lion's seed which had stuck in his fur. He froze then, eyes wide and heart racing as a terrifying idea crossed his mind. He started looking hastily between his sleeping patient and the drugs on the counter...theoretically he could, yeah, but...this was a patient. It was his professional duty to take care of him, wasn't it? Not that the pair's activities up to that point had been professional, strictly speaking. Larson deliberated in his mind as Vik snored lightly on the table, tufted tail flicking idly.

A more insistent gurgle ended up making the doctor's mind for him. The husky began to maneuver himself on the table, receding cock only proving to be some hindrance as it shrank into its bulging sheath. Shaking paws slowly pulled the lion's legs together, laying them straight out along the table, doctor freezing in place at every noise the lion made, terrified of waking his patient up. Steeling himself and taking a deep breath, he laid on his back and scooted forwards towards the lion's feet. He held his breath as his paw guided the lion's toes to his own un-touched tailhole. With a heavy gulp, he pulled himself forward again, struggling to stifle a noise as he felt himself spread open around the lion's toes, short tugs and scoots sinking those feet in to the doctor's passage up to the ankles. A sudden, loud snore startled the doctor, who clenched reflexively -- other than some small amount of shifting, though, the lion remained still. Larson's stomach rumbled again. He clenched his jaw and continued.

The lion's legs continued to feed into the doctor's rump, stretching the husky's ring wider and wider as it clenched around Vik. The husky paused when he had his patient knee-deep within him, paw rubbing over the leg-shaped bulges in his front, and he continued. The lion's doughy thighs compressed somewhat, but still strained the husky enough that he whined at the stretching his body was undergoing, a series of dull pops emanating from his hips as they shifted and moved to allow for the massive penetration. The lion's own bulbous hips proved no small struggle for Larson, who wiggled back and forth in an effort to feed more and more of the lion into himself. He felt the lion's heavy, swollen, and mostly-spent balls sink past his ring and, nearly halfway through, paused.

The husky's sheath throbbed and twitched weakly as he looked over the lumpy, misshapen bulge that was his midsection just then, and he glared at it. Now was the risky part, no time for fun just yet...straining to lean forward, he slowly removed the restraints from Vik's wrists, laying the lion's arms flush along his sides. That done, he gripped the edges of the table and jerked himself forward, several more inches of the lion sinking into him -- but more notably, the lion's paws, soon sinking to their wrists, and past. Larson's eyes rolled back into his head and he began panting as his body throbbed around this huge insertion and, to the doctor's surprise and pleasure, began pulling the lion in reflexively. He laid his head back, paws excitedly roaming over the stretched belly as it filled up with lion.

Vik was slowly brought to consciousness as he felt his legs being folded forward, starting to curl up along themselves. He grumbled a bit, shifting slightly yet keeping his eyes closed. That odd warmth, though...that tightness...it was almost like he was snuggling into a just-too-small sleeping bag..it was up around his elbows, just passing his stomach, enveloping his half-firm cock...a series of loud moans convinced him to open his eyes and see just what was going on, only for the sight to snap him right back to consciousness.

All he could see was the husky's legs, splayed impossibly far to either side, a lumpy, moving white-and-black stomach, and the doctor's sheath and swollen orbs -- just below which was that dark, straining tailring, stretched taut around the lion, slowly moving up his front. With a lurch, the lion sank into the husky up to his shapeless pecs, which cued him to speak. "D-Dr. Larson! What's...what are you doing?"

The doctor couldn't answer, though, past a gurgling moan. The lion was hot and damp, feeling the flesh of the doctor pressing down all around him. He yelled and struggled as he was pulled in up to his shoulders, trying to wrench his arms free, or flail his legs. Anything to get out of this bizarre situation he had waken up to...

The lion's struggles had the opposite effect, though; the husky moaned as he could see the lion wrestling and writhing underneath his taut pelt, the intense pleasure forcing the husky to seize up, the strong reflexive action of his interior muscles pulling Vik in ever further, thick neck enveloped in no time, the husky's heavy balls resting on the lion's face as he sputtered and panicked, turning his head to the side. "P-please! Doc, don't, I d-don't wanna--"

The lion was cut off abruptly, one more tug from the canine's body pulling his head within the doctor's ravenous tailhole; everything was dark and hot, there was next to no air, and any noises were muffled and indistinct. He struggled and flailed, feeling those walls constrict around him, drawing him deeper and deeper -- he tried not to panic, tried to keep a clear head, but he was hyperventilating, head rapidly growing fuzzy as his pitiful air supply dwindled down. In a bizarre moment of clarity, he felt his cock -- fully erect now, to his bewilderment -- sandwiched between his flabby stomach and the tight, hot walls of the husky's insides. Almost without his input his hips started rocking back and forth, humping against those slick walls as he felt his legs curling into a somewhat more open space, hips and torso following, with the lion's head eventually joining the rest of his body in an acrid, wet pocket.

A loud gurgling surrounded the trapped lion, who whimpered and yelled, trying to push his limbs outward, ideas running out fast. That hard-on, though, that was distracting him...with a whine he began pumping his paw over his much-enhanced length, reaching climax swiftly, seed firing out of his shaft and rapidly filling what little extra space he had left...

Dr. Larson was in heaven, meanwhile. After his patient's head had been entirely engulfed within his hungry passage, the doctor's ring swiftly constricted back to its original shape, his hips slowly following suit. With every movement or shift within his squirming gut, the canine moaned out, his cock soon swelling again to its full size and dribbling down onto his gargantuan midsection, the indistinct lumps of the struggling lion pressing against his flesh as that giant meal settled into his stomach proper. Larson thought he heard some sounds from within his gut, but could not make them out. Laying his head back and panting, he watched his stomach move and shift, grumbling and gurgling noises signifying that his body was working on its dinner. His eyes widened a bit as he saw his midsection swell even further, accompanied by some more thrashing from his patient...

Vik was having a difficult time keeping his eyes open in that hot, gurgling tomb, now full with his seed as well. His movements became more sparse; he hardly noticed his fur falling out, or his skin blistering and becoming softer, and in just another moment the lion closed his eyes and drifted off, not noticing anything else.

As the motion within his belly slowly ceased, the doctor clenched his eyes shut, second orgasm tantalizingly close. He struggled to reach around his massive belly, but was unable to get his paws around his needy cock. Giving up, he laid his head back, groaning and full -- his stomach went to work on its meal, lumpy shape of the lion within him gradually smoothing out to a giant round gut. He drifted off to the sound of his own body gurgling and processing his patient. At least he had gotten some interesting data...