For Science

Story by Birdpup on SoFurry

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Commission for dashofweak, featuring his character, Dash.

Dash is a scientist in his late 20s. Frustrated that his research is going nowhere amongst waiting for human trails, he decides to take matters into his own hands with a prostitute and a shot of his wonder drug that enhances your libido and stamina.

If you fancy a commission of your own, I am currently open for Pay What You Want commissions. Check my journals for more info.


The message read that the person would be on the way shortly. The reader let out a long sigh and stretched out a little bit, rolling his chair around. The figure, a slender, orange-furred Fox, rubbed his temple as he looked down at the syringe in his hand, filled with an odd, clear fluid. The front was labelled as 'EB3921 -B'. It was a drug he'd been working on. He just hoped it'd work.

His name was Dash, and he was a scientist, working out of a small laboratory under a contract with Exilus Medical Incorporated. It wasn't a lucrative job, but he did get the opportunity to work on all manner of different drugs and pharmaceuticals, ranging from experimental drugs to help those going through chemotherapy, or something a lot more different.

For the past few months, he had been solely working on an experimental drug designed to help boost a person's stamina and sexual performance in the bedroom. It had been an odd request on behalf of the company, but he had taken it in his stride. Partly because he understood why: such a drug, if it worked, would no doubt sell for a lot of money. That's why he'd worked tirelessly on it, and now, he had a prototype that needed testing.

Perhaps it hadn't been the best idea to hire a prostitute to help test the drug, but then, he had no other options. In the dim light of the Laboratory, he was the only one here. Everyone else had gone home for the day. He looked up to the clock and checked the time: 11:43pm. It was drastically late, but it wasn't as if he had anyone to go home to. For a man in his late 20s, he had very little friends.

His eyes fell to the syringe again, and he let out a sigh as he set it on the pristine white counter. He had been impatient, knowing he'd have to wait months to begin Human Trails, so he decided he'd try it out himself. It might not be a good idea, but no-one ever got results by playing by the rules, right?

The fox was dressed in a lab coat, and under that, a shirt and trousers, as you'd expect from a professional man with a professional job. He adjusted the coat around his shoulders. He had answered an ad online for a hooker and the Avian in question he'd spoken to looked rather inticing. Of course, he had used a throwaway email so people couldn't incriminate him. He was a little paranoid about that.

He heard a small ping from the other side of the room, and he turned towards the intercom, seeing a red light flashing above the speaker. He wandered forwards and quickly pressed a small green button, leaning forwards to speak into the hidden microphone.

"Yes?" He sharply replied, his voice American, short and professional, almost logical. He listened carefully for a voice in reply and heard the crackle of interference that often came with someone messing with their phone near the intercom.

"I'm looking for Dash?" The fox heard a rather effeminate voice in response and furrowed his brow, assuming that it was the prostitute he'd ordered.

"Go to Floor 2, Laboratory A." Dash spoke briefly into the speaker and pushed a large red button. There was a sharp buzzing sound that normally accompanied the gate to an apartment, and he let it go after a few seconds, assured that the prostitute had made their way through. He knew the Avian was male, but had no idea about his figure. The prostitute had been a little vague about it, probably because he was nervous.

It was a few moments later that his suspicions were quashed. As he toyed around with various things on his desk, he heard a knock on the door, and the click as the lock turned and the door opened. He turned to face the prostitute and was pleasantly surprised.

The other figure definitely what he claimed, an Avian, with a beautiful, cherry red plumage covering his body, the front of him white, all the way down to his crotch. Dash's eyes lingered over his features and down to his crotch, noticing it was rather flat. The Avian was wearing a bright green tank top that was near-blinding in just how fluorescent it was, as well as a pair of tight-fitting shorts that curved around his ample rump. A thick plumage of feathers sprouted from above the shorts like a tail.

The Avian's talons clocked on the floor as he came forwards, and Dash noticed that bird looked just as nervous as he did. Perhaps it was one of his first times, or maybe he was just worried about the establishment?

"Sorry that it doesn't look more cosy." Dash joked, feeling the nerves bubbling up to the surface. He stepped forwards and reached out his hand to greet the Avian with a handshake. He watched as the prostitute wavered, before he eventually reached out his own feathered hand and shook it. Avians had evolved a little oddly over the years, and most of them didn't even have wings anymore.

"Hi. I'm Dash," The scientist introduced himself with a small smile, his ears twitching. "What's your name?"

"Tyler." The avian replied, sounding just as effeminate as he had appeared on the intercom. Dash quickly looked over him, noticing his effeminate figure, from his tucked-in stomach to his slightly wide hips and rather girlish outfit. It was a small comfort to the Fox that Tyler was just as nervous as he was.

"So...uh..." Dash let go of his hand and went to the counter, picking up the syringe. He saw Tyler instantly freeze and he quickly raised a hand in his own defense.

"Don't worry. This is for me. I'm a scientist, and I'm experimenting a new 'vigor' drug...it's meant to make you last longer," Dash explained before Tyler got the wrong impression. "I paid to have you for the night, so...we should get up to a lot of fun. I assume. It was $800, right?"

He watched as the Avian looked a little relieved, and saw a small smile creeping up on the bird's beak, clearly enthralled at the idea of sex and money at the same time. Tyler found him rather attractive, but the Avian still looked a little nervous. Dash guessed from his features that he didn't do this line of work often.

Dash put on a rather nervous smile himself and slowly rolled up his sleeve, exposing his arm. The Avian stepped closer curiously and paled when he saw the Fox's arm. Dash's veins were prominently glowing, and that was incredibly unnerving. Dash peeked up to see his rather horrified expression.

"Don't worry, it's harmless. Just a...uh, unfortunate accident a long time ago." Dash admitted. When he was an aspiring scientist, he had been accidentally injected with a peculiar jellyfish gene that had altered his DNA. His blood cells glowed blue, and in turn, it made his veins and arteries glow, which could just barely be seen underneath his skin. Tyler looked at him nervously as he pressed the tip of the syringe to the crease between his forearm and upper arm, and he pressed it in. Slowly, he injected himself with the mysterious clear substance, before he withdrew the needle, pressing a cotton swab to the wound that had formed.

Immediately, he could feel a rush and he took a deep breath, shuddering. It was odd. He suddenly felt so vibrant, like he could lift cars or run up walls. It was such a sudden rush that it left him feeling a little flustered and confused.

"Are you okay?" Tyler tentatively asked and Dash's eyes focused on him. The fox wryly smiled.

"Yeah, I'm good," He replied. "Just give it a couple of minutes to kick in. So...I gotta ask. You look...well, not new to this, but definitely nervous. Do you do this often?"

"No," The bird replied tentatively, not sure if he should disclose personal information. "But I need money to be able to keep going in college, and this pays well."

Dash guessed he was between the ages of 18 to 20, and definitely looked young enough for it. He was secretly rather thankful he hadn't accidentally hired an underage prostitute. That would have been a rather difficult thing to explain.

"I see, I see..." Dash muttered, already feeling a tingling in his loins. He wasn't sure if the drug was meant to make him feel aroused: it was just meant to make him last longer. He'd have to make some adjustments.

"I hope you don't mind if I take notes." He smiled wryly and reached for a clipboard and pen he'd laid out earlier, scribbling down some notes as he felt his sheath swelling in his pants. He quickly scribbled down the words 'fast acting'.

"It works fast." He commented aloud, peering over his clipboard to the Avian, giving him an expectant look. At first, Tyler didn't appear to understand, before he blinked and nodded. The bird stepped forwards and got onto his knees, his hands worked at the trousers and unbuttoning them. Slowly, he pulled down the pants and the boxers with it to reveal the Fox's swelling sheath.

Already, the Fox's cock was poking from it's entrance, twitching and pulsing in delight, and the Avian was happy to make him feel better. At first, he noticed something odd, and then realised rather quickly that the cock itself was glowing too, probably due to the blood. It was peculiar, and at first, Tyler was nervous, wondering if it'd taste different. Slowly, he drew out his tongue and pressed it against the twitching tip, rolling the fleshy appendage around the tapered end. It didn't taste so bad, actually. He could hear Dash groaning as he scribbled some notes down on his clipboard.

"Just keep going." Dash muttered, getting harder and harder as his cock slid out his sheath, twitching to full mast in under a minute. He noted on the clipboard that he'd gotten very aroused very quickly, and his body tingled with the need for sex and the desire to mate.

Tyler was doing a relatively good job at keeping him satisfied, and was being careful to keep his beak firmly away from the Fox's dick, as he knew it'd hurt. His tongue darted and slid around, coating what he could reach of the member in his own spittle. He heard the Fox shifting around above him and heard the faint 'pop' of a cap opening. Slowly, he pulled his head back and looked up.

"It was going to come to this eventually, but this...this drug..." He muttered to himself, feeling nervous and a little worried. In his hand, he held a bottle of lubricant, and Tyler appeared to understand what it was he wanted rather quickly.

Tyler stood, and Dash's hands were upon him, touching his lithe, feminine body. Tyler felt the tingle running up his body and a small smile played upon his beak. The Fox's hands went to his top and pulled it over his head, his hands stroking along his chest. Dash never thought he'd be into someone so feminine, but then, maybe it was the drug that made him loosen his inhibitions a little bit.

He didn't stop there: his hands delved to the waistline of the Avian's waist and he tugged his pants down, wanting to get a look at what was hiding between his legs. His hand delved in beneath the boxers and he stroked along his crotch, feeling a thin line.

"Cloaca?" He guessed, and Tyler embarrassingly nodded, leaning against Dash's body as a small, gentle moan escaped the bird's lips. He rolled his hips against Dash's hand, and the Fox dig a finger or two against the entrance, feeling it stretch and slip around his fingers. Tyler quivered against him and Dash felt his cloaca visibly pulse against his palm.

"Cute." Dash muttered quietly, reaching around wit his spare hand and stroking along Tyler's ass. His fingers delved down and he relieved to find the bird had a cute little pucker, too. That would make things a lot easier. His other hand slid along the cloaca and felt it tense. He withdrew his fingers a little and pushed the boxer's down with his wrist, exposing the cloaca to the air. He looked down to see nothing coming out of it, and wondered if the Avian even had a phallus.

Tyler was trembling on his feet, looking a little nervous and flustered. Dash stroked his side encouragingly as he directed him to the laboratory table, and Tyler climbed up onto it, shifting to begin laying on his back. It was the perfect height and position for Dash, and he'd be able to penetrate him pretty easily from here.

Dash leant over him, reaching to the right for the lube bottle as Tyler put on a nervous grin, shifting around beneath him. The fox was already pretty eager, his thick, glowing cock prodding and pressing against the Avian's pucker, making Tyler tense and squeeze against it.

"Gonna need this," Dash remarked. "But you still look a little nervous. Let's try and break the ice, shall we?"

At first, Tyler didn't quite what he meant, sporting a puzzled expression as Dash placed the bottle back on the table next to them. The Fox went lower and lower until his face was meeting the Avian's crotch. Tyler blinked at him between his spread legs and everything clicked into place. He felt colour rising to his cheeks underneath the feathers, knowing exactly what Dash was going to do next.

"Admittedly, I've not done this to a Cloaca before. This should be interesting." Dash murmured. He pressed his lips down against the Cloaca. Typically, an Avian's nethers consisted of just a hole, and the phallus would come from that. The Avian didn't appear hard at the moment, so Dash thought he might get the chance to do it before he did. He opened up his mouth and spread his wide tongue across the entrance.

Tyler quivered under his gentle tongue and a small effeminate moan escaped his beak. His legs trembled as Dash continued, feeling the wide tongue lapping across his cloaca, causing him to tense and squeeze. He could feel Dash's hands slightly spreading his skin as his lips pressed deeper. In a matter of moments, he felt the tongue pushing it's way into his cloaca. Tyler arched his back and let out a weak gasp.

"O-Oh my...!" Tyler mumbled out, reaching his hands down to stroke along Dash's headfur. His fingers traced up along to his ears and rubbed them between his thumb and forefinger. He heard Dash let out a small moan of appreciation as his tongue pushed deeper and deeper. No-one had ever gone this far into Tyler's cloaca before, and the pleasure was intense, if a little uncomfortable. His tight inner walls clamped against the tongue as the tip of his phallus slowly poking against his tongue.

That was his cue to back up, and he did so, lapping slowly at the entrance as Tyler squirmed and groaned above him. He eventually began to feel the tip poking at his tongue, and he retracted it, gently spreading the cloaca with his thumbs as he watch the phallus emerged. Tyler had a tapered member, which began tiny at first, but was quickly beginning to grow in length. In a matter of minutes, it was at half-mast. Dash planted a few teasing kisses on the pulsing member before he slowly slid up, standing again.

"There we go. Feeling a little looser now?" A smile played upon Dash's lips. Now that foreplay was over, he reached over for the lube bottle and turned it over in his palm, spurting some of it against his fingertips. He saw that Tyler looked a little nervous still, but the cute Avian had a big, goofy grin on his face. He was clearly enjoying himself.

Dash leant down with his fingers as his mouth descended over the bird. His lips met with the Avain's neck as his fingers prodded against the bird's tight little pucker. He could feel Tyler squirming beneath him. "C-Cold!" Tyler gasped, his toes curling as he felt the fingers sinking deep into his ass, making him tremble and groan from the pleasure. His insides clamped down and his muscles flexed around the fingers, and Dash smirked to himself. The bird was going to be tight.

Slowly, Dash slid his fingers back and forth and made sure the Bird's ass was fully lubed up. He didn't want to hurt the poor guy, after all. He eventually pulled back, unable to hold back the need to fuck any longer. He spread the Avian's legs a little more and pressed the tip of his member against the lubed-up behind. After a few moments, he began to push himself in.

Tyler clamped his beak down and quivered gently beneath him. The bird's muscles spasmed down on his cock and made Dash groan from pleasure as he slid deeper and deeper. Already, his knot was swollen and aching to burst, but he knew he had a while to go. Admittedly, he hadn't been with anyone for a while, so he might end up cumming rather quickly.

"Damn..." Dash muttered, sliding himself deeper and deeper until his knot squished up against Tyler's entrance. He rocked his hips slowly, feeling the tingling sensation of need creeping up his spine. He slowly pulled back and began to thrust, filling the quiet air of the laboratory was filled with their wet, sloppy sex and the slick squishing of his cock sliding in and out of the bird's behind.

Tyler let out a small groans and pants as he felt the thick canine cock sliding in and out of him, pushing againts his prostate. It forced his small tapered member to push further out of his cloaca, making itself more prominent as it slid along his lower stomach, dribbling pre-cum onto his feathers and matting them up. He eventually reached full mast after a few powerful humps, 6 inches and twitching.

"You're tight. You're so tight..." Dash muttered, partly to himself, and partly to the bird. He thrust himself faste and faster, his balls swinging and slapping against the feathered behind as he felt the pleasure rising within him, making him grunt and and snarl like an animal. He was getting so close already and he'd barely started.

Tyler's groans underneath him were making it all the more pleasurable and he felt the tight ass clenching around his cock with each thrust into him, and he soon around himself digging his fingers hungrily into the Avian's wide hips, humping faster and faster. He lolled his tongue as he forced his knot up against the bird's behind, eager to thrust into him. He was struggling to get himself to fit, grunting in frustration.

After some coaxing, he let out a sharp groan of pleasure and thrust forwards. He finally felt the ass give way around his cock and popped himself in. His knot swelled eagerly with the muscles clamping around it's bulbous form and he tugged his hips back, pleasuring his knot even further. He let out a restrained groan, practically drooling from the pleasurable bliss.

"F-Fuck." Dash swore harshly as he suddenly felt his orgasm hit him, and he humped his hips forward, sighing in bliss as he spurting thick ropes of cum into the femboy's ass. He spurted and pumped, over and over, locked to the Avian and he leant over him. Tyler let out a small gasp and looked up at the Fox, smiling weakly as he felt the warmth spreading inside his small, feathered body.

"Hmmm..." Dash looked pleased, but he didn't feel satisfied, as if there were more he had to do. He reached over to the clipboard and scribbled something down, before setting it aside. He tugged back and popped his knot outwith ease, which made him pause. Normally he'd be tied for a while, but instead, he managed to withdraw with ease. He looked down at his cum-coated knot, and realised it had shrank a little, but as he stared, he saw it pulse and grow again. He suddenly felt the same tingling desire spreading throughout his body, and he felt as if he hadn't had sex at all and needed to go again.

"...I need more." He marveled, leaning forwards again as he began to thrust into the Avian for a second time. Tyler's eyes widened and he looked confused, watching as the Fox leant over to write down on the clipboard as he thrust. Dash was beginning to get flustered, and reached up to take off his lab coat and shirt, tossing them across the room. He had no need for them at the moment.

"Again?" Tyler asked anxiously, looking down at his pumping member. He couldn't deny he was enjoying the second round: the young Avian hadn't yet orgasmed himself, his tapered cock pulsing against his stomach and leaving a fine pool of pre-cum. He squirmed beneath the thrusts, noticing that the Fox above him was humping a lot harder than before, making their sex a little less comfortable than he would have liked.

Dash continued to thrust as he felt the pleasure within him building again. By now, his legs and arms would have ached from the physical exertion needed to fuck, but for whatever reason he felt as healthy and as full of energy as ever. He felt like he could go for hours, and for some reason, he wanted to.

He humped harder and harder as the sloppy noise of his cum-covered cock sliding in and out of the used hole filled the air. His knot slapped up against the tight pucker, splattering cum all over the feathers along the avian's rump. He heard Tyler groan and huff in mild discomfort beneath him, and in the back of his mind, he had the inkling something was wrong. But, in his lust-addled state, he didn't seem to care.

"Yes..." He sighed out in bliss and thrust forwards again, his knot sliding into the used asshole without as much difficulty as the first time, and he humped his body back and forth, orgasming just as fast as the last time. He pumped another load into the Avian, similar in quantity to the first time, if not more. His tongue lolled out his mouth, and Tyler saw the almost feral look in his eyes. It was a little scary.

Dash panted harshly in the midst of his second orgasm, wondering if that was the end of it. He didn't feel any more tired, and as he took in a big gulp of air, he felt the tingling need to keep going. By this point, he wasn't taking any notes: he simply wanted to breed.

With a forceful tug, his knot popped from the Avian's ass, and he heard Tyler let out a grunt of discomfort. The Bird could feel a sharp sting from the forceful action that slowly subsided. Dash pulled his hips back fully and his cum-coated cock slid from the used hole. Tyler could feel semen dribbling from his orifice and he sat up slowly, looking at the Fox. Dash had a near-crazed expression in his eyes.

"More." He demanded. "I paid you for the night, I'm going to make the most of it."

In a matter of seconds, Dash was climbing up onto the table and Tyler was left sitting under him, looking a little worried. The fox's glowing member pulsed right in front of his eyes and Dash reached down his with hands. He gently traced along the Avian's beak, before he slowly began to pry it open. Tyler, at first, resisted, before he eventually gave in. His beak opened up and Dash was greeted by the sight of the inside of his mouth.

"Yes..." The fox leant forwards and his twitching member smeared along the outside of the beak for a moment, before he angled back and slowly began to push his member into the bird's mouth. Tyler let out a small groan after a moment and Dash pushed further and further, up until the tapered end of his cock was smearing against the back of the Avian's throat. His cock twitched and tensed and he let out a long, slow groan.

Tyler wormed his tongue around the throbbing cock, a small whimper escaping his throat. He began to feel the member slide back, before Dash thrust into him again. Tyler could feel his cock bumping against the back of his throat and he was worried that Fox might go too far. Dash didn't appear to care as his hips rolled back and he bumped in again, his balls lifting up and smacking into the underside of the Avian's beak with each thrust. Tyler was getting face-fucked, and he knew it.

The Avian's hands planted themselves on Dash's pelvis as he humped down into him, in an effort to get him to slow down a little. But, the resistance only made the Fox thrust harder and he let out a small groan, feeling the pleasure build and build. Soon enough, he was thrusting and pistoning into the Avian's mouth, and Tyler gagged and groaned out in protest. The Avian's eyes rolled into the back of his head as Dash opened up his back a little more.

"Fuck..." Dash felt yet another Orgasm approach, and couldn't stop himself from cumming again. He pushed down, his knot prodding and bumping against the sharp beak as he pumped another thick load of cum right into Tyler's mouth. The bird tried his best to swallow, but most of it bubbled out his beak as he coughed and gagged.

"Good boy..." The Fox murmured with a crazed, lust-driven grin. He rolled his hips back and his cock slid from the bird's mouth. Tyler rolled his head to the side and had to spit out what little cum he had, taking in a big gulp of air and coughing. Dash had been a little too rough on him.

"We're not done yet." Dash mumbled, cupping a hand under the bird's beak and tilting his head back up again. He grinned at him a little bit and rolled his hips back.

"Use your hands." He demanded, his cock still hard and twitching. There was no way it was going down until much later, and the Fox's body craved more, like a hungry animal.

Tyler weakly brung his hands up, a worried look in his eye as he wrapped his digits around the cum-coated cock. The semen stickied up his fingers and he recoiled a little at the feeling. He might have been a prostitute, but he hadn't actually been with a lot of them, and this was a relatively new experience for him. Slowly, he slid his hands down, hearing the definitive wet squelch that accompanied the sticky fluids around the cock.

"Yeah...that's it." Dash murmured, gently bucking his hips against the hands as Tyler began to pick up the pace, knowing that the Fox needed his fix rather quickly. Dash was clearly quickly enjoying himself as he humped harder and harder.

"More, more! My balls too, do it!" The Fox snarled and begged, and Tyler submissively did as he was told. A hand traced down and cupped his humping balls, giving them a firm squeeze and tug as his hand sloppily ran over the slick member. Strings of pre-cum shot and dribbled from the Fox's tip, shooting over the poor bird's body. The Avian wriggled from the rather lewd feeling of the pre-cum splattering all over him.

"Yes...yes...!" Dash was already at his limit, and there was no stopping him. He leant over and humped like an animal, pounding and thrusting and his knot bummped up with the Avian's hand. Tyler slowly reached up and squeezed his knot, thinking he might enjoy it. The Fox let out a harsh groan and suddenly orgasmed, just from that single touch. A thick jet of cum spurted from his tip and shot across the Avian's face, and them some. A good portion of it splattered across the laboratory table. Rope after rope came shortly after, and soon enough the poor bird prostitute was covered in the sticky substance, coating his eyes and beak.

"More." He demanded. "More, more, more!"

Tyler was worried now. The Fox was looking like he'd almost gone mad with lust. He writhed under the Fox, who quickly shifted off of him, staggering a little on his feet.

His hands grabbed at the Avian and Tyler flinched a little, feeling fear and panic rising in his throat. He hadn't signed up for this kind of madness and wriggled a little in the less than gentle grip. Dash forcefully rolled the Avian over, pushing his chest down into the laboratory table. Tyler's beak smushed against the desk and he angled his head, looking worried.

"C-Careful." He replied, sounding axious as his tapered end was pushed into the table. He could already feel Dash's cock smearing against his ass again and he felt a sudden, sharp pain as the Fox swiftly thrust into him. Hard.

"You're hurting me..." Tyler began to complain, but it appeared as if Dash didn't really hear him, thrusting harder and harder into the poor Avian fellow. He leant over him and bucked into him like a beast, his balls swinging back and forth and slapping into the Bird's ass as he kept going, with no apparent need to stop.

After a few minutes, the Avian felt a sudden gushing feeling inside his body and realised that the Fox had cum, but he was continuing to thrust instead of knotting him. Tyler squirmed a little as he heard the thick, wet slaps of the Fox's hips turn more and more sloppy. He could feel the warm semen dripping down his inner thighs and splatter across his rump. It was getting everywhere, and Dash was firmly holding him down, with no apparent reason for stopping.

Dash kept going, despite the Avian slight squirming, his cock sliding back and forth as his Knot pulsed, inflating and deflating over and over from his orgasms. As quickly as the last one had left, he was building up another. Before he knew it, he was cumming again filling up the Avian's already used hole for the 4th time. In the back of his mind, he was terrified of what was happening, but in the present, all he wanted to do was keep going. He needed to retain his feeling for as long as he could.

He kept humping, as hard and as fast as he could, hearing the Avian's sharp grunts and cries as his knot suddenly began to pop in and out of the Avian's ass, over and over. Each few humps elicited another thick spurt of cum, and each tug of his knot forced more cum out of the Avian's backside, causing it to dribble down Tyler's legs.

The Avian was horrified now, and had wanted to leave, but he was being forced down, unable to fight back as the Fox forcibly bred him, over and over.

This went on for what felt like hours, and probably was. It was nearing 2am, and Dash was still going. His orgasms had died down somewhat, no doubt because the drug was finally wearing off, but had cum in excess of over 50 times, maybe more. The Avian was weakly whimpering from pain, his belly gorged and swollen from the sheer amount of cum. His ass dribbled cum constantly as Dash knot-fucked the poor Avian still. Cum coated their legs, staining their fur and feathers. Some of it had travelled up the Avian's back, and it had pooled around the laboratory table and floor.

"Please..." Tyler weakly begged, his toes curling from the pain and pleasure. His ass felt sore and numb, and he couldn't even feel the knot tugged and forcing it's way into him anymore. Tears were streaming down his cheeks and the uncomfortable feeling of all the cum inside his belly made him nausous.

Dash continued to hump and orgasm a few more times in the space of 10 minutes. His eyes had glazed over and his cock felt a little numb itself, but the lingering feeling of pleasure was still there, humming throughout his body.

It was nearing 3am when he finally came to his senses. It took time, but over the space of 10 minutes, his thrusts grew more labored and he felt an aching in his arms and legs, a powerful, burning ache that he'd never felt before. He slowly felt a stinging sensation in his cock and his thrusting eventually stopped. He shook his head and looked down, his eyes widening in surprise. Slowly, he pulled his hips back.

He watched as cum flowed out of the Avian's ass like a leaky faucet, and he heard the bird's quiet whimpers of discomfort. Tyler rolled onto his back and his belly sloshed with it. He stroked his bulging stomach and sniffled a little, looking used. He wasn't pleased.

"I...well...I think I need to make a few readjustments." The scientist mumbled, reaching for his clipboard. The paper was stained with cum, but the notes were readable, still. He set it aside and went to his trousers, retrieving his wallet.

He turned to the Avian, noticing his little tapered cock had shrank back into it's cloaca long ago. He wondered if he'd ever got to cum.

"Uh...here." He tossed a collection of bills onto the Avian's gorged belly with an apologetic smile. "See yourself out."

Tyler had never felt so used. His gaze grew steely and he wriggled a little, collecting the money, quickly counting it to realise there was roughly double what they'd agreed on. He didn't complain, sliding off the table. He reached for his clothes and shuddered, letting out a groan. Cum pooled down around his feel as it poured out, trickling down his legs. His belly deflated somewhat. He waddled out with his clothes, leaving the Fox to deal with the cum-pooled mess.

"...Definitely some more adjustments..." He mumbled looking down to a second syringe filled with the stuff. He took a seat and let out a small sigh. He glanced to the computer and after a moment, wheeled towards it.

He turned to his computer and looked at more prostitution ads. He clicked on one with a rather outlandishly open, effeminate canine offering his services for a 'quick romp'. Dash grinned. He had an idea in mind, involving this guy, and yet another syringe.