Experimentation

Story by shadypaw on SoFurry

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Kyle sat in the waiting room, yet again double-checking the last page of the sheets he'd been given to fill out. The first few pages were the legal stuff, he supposed: full name, date of birth, phone number, address, emergency contact, and all of that. But it was the stuff on this last page that made his heart race the longer he had to sit out here and think about it.

Full Name: Kyle Tyler Fink Preferred Name: Kyle Major, if enrolled: Electrical Engineering Age: 19 Species: Feline (tabby) Sex: Male Gender: Male Sexual Orientation: Heterosexual STIs/STDs: None HIV/AIDS status: No Number of Previous Sexual Partners: 1 Referred By: Megan Neilson (? the "1" in question)

By signing and submitting this form, I consent to engaging in homosexual sex for medical research purposes. I or my assigned partner may withdraw my consent at any point during the experiment. I acknowledge that this experiment will be recorded, and that this recording will not be distributed without my permission.

The tabby cat took a few deep breaths, and tried to calm himself down.

Megan--his girlfriend, sitting in the chair next to him--leaned over and gave him a long, warm hug. "You'll be fiiine," she said with a big smile. "I just wish I could come with you and watch."

"Heh. Sure you won't be mad that I'm gonna be with someone else? A uh, a guy, specifically?"

"Pffff. You are aware that gay porn is like, the only porn I watch, right? It's kiiind of a massive turn-on for me."

With that, the two cats kissed.

Kyle purred, feeling a little bit better.

"How did you even hear about this?" he asked.

"My friend Jen is part of the group in charge of the experiments," Megan explained. "She asked if I knew any gay guys. I said I'd do her one better, and give her a straight gayness-virgin whose arm I could twist. She seemed really giddy to get her hands on you."

Kyle laughed a little, and gave Megan another kiss. Her tail flicked happily, and she kissed him back.

The two of them stopped kissing when they heard a door open. Turning to look, they saw a tall black dog standing there, wearing blue scrubs and holding a clipboard.

"Hi Megan," the dog said, smiling and wagging her tail. "Is this Kyle?"

Megan nodded. "Kyle, this is Jen. Jen, Kyle."

Kyle gave a little wave.

"Hmhm. If you've got your papers ready, you can come right this way."

Kyle stood up and followed after the canine med student, giving Megan one last look over his shoulder as he went.

"We're going to stop by this room here to give you a quick check-up first," Jen said, leading the way into a little doctor's office. It looked just like a doctor's office, anyways, even if it was in the basement of the campus's med building rather than in an actual hospital.

Kyle hopped up and sat on the edge of the room's exam bed.

"Door open or closed?" Jen asked. "You'll just be taking your shirt off for now."

"Uh. Open, I guess," Kyle said. It seemed like a bad idea to set a precedent for being shy about nudity, given what he had signed up for.

The tabby cat took his shirt off, and set it down behind himself. Jen grabbed a stethoscope off the counter, and got to work checking the tabby's breathing.

"Big breath in," she said, placing the cold metal at a particular point on his back.

The tabby complied, and breathed in.

"And out," Jen said.

Slowly, the tabby breathed out. As he was breathing out, he saw another 'patient' walk by the door, accompanied by another 'doctor'.

"Oh, I think that's the other guy," Jen mentioned, moving the stethoscope to another point on Kyle's back.

"Wh--the other guy who--"

Jen giggled. "Yes, the other guy who you'll be 'having some fun' with. Look handsome enough for you?"

"I... don't think I caught what he looked like whatsoever," Kyle said.

"You're alright," Jen said. "Slow breaths. Heh, c'mon, you were calm just a second ago. Breathe in... hold it... breathe out. Good. There we go."

Jen put the stethoscope away, and got to checking the tabby cat's blood pressure.

"Wow," she said. "Pulse and blood pressure are through the roof. Nervous?"

Kyle nodded.

"Aw. Honey. You know you can stop this at any time, right?"

"Yeah," Kyle said. "I'm alright."

"Sure? If you want to leave right now, I won't ask any questions. I'll even make sure Megan doesn't pick on you about it."

"Heh. Really, I'll be fine."

"Alright. You can put your shirt back on and follow me then."

Kyle grabbed his shirt, pulled it back down over himself, and stood up off the exam bed. He and the canine left the room, and walked down the hall a ways to another door. The placard outside the door labeled the room as "BIOMEDICAL ENGINEERING EXAM ROOM A."

Megan knocked twice on the door.

A muffled "Come in!" sounded through the door's wood. Kyle made a mental note that the room was decently sound-proof, though definitely not completely sound-proof.

The inside of the room was somewhere between the size of a supply closet, and Kyle and Jen's little studio apartment. The walls, floor, and ceiling were all made from some kind of slightly-shiny white plastic.

On the left side of the room, a red fox wearing black scrubs sat behind a wooden desk, eyes darting around a few computer monitors as he clicked and typed. In front of the desk was a big machine that made Kyle audibly gulp. He supposed he would learn what it did shortly.

The right side of the room was empty, aside from one smiling husky, who had his hands buried deep in his sweatshirt pockets. When the tabby met eyes with the husky, the husky took one hand out of his sweatshirt and stepped forward to shake.

"Tyler," the husky said, as the two shook hands. The dog's voice did sound a little effeminate. Based solely on that, Kyle supposed that the canine might have been a little bit more familiar with the whole 'gay sex' thing.

"Kyle," Kyle said, introducing himself as well. "You uh, come here often?"

The husky giggled, and shook his head. "First time doing anything with anyone but my boyfriend."

"Oh, same," Kyle said, smiling. Then, realizing what he'd said, the tabby cat rushed to clarify, "Well, except, swap 'boyfriend' with 'girlfriend' for me."

"Oooh," the husky said. His tail began to wag. "Fun. Bi?"

"Straight, but uh, too-easily peer pressured by my girlfriend, I guess."

"Hehe. Can I have a hug?" Tyler asked.

"No hugs," the red fox behind the desk interjected, raising his voice but not looking up from his monitors. "Let's get you both rigged up before anyone gets frisky."

"They're just getting to know each other," Jen defended. "But you're right. Both of you ready to strip?"

The husky nodded, and the tabby cat nodded just a second after.

"Well go on then: make yourselves at home."

Tyler unzipped his sweater, and set it down in the corner of the room. Kyle, meanwhile, took off his shirt once again, and placed it in the opposite corner. Kyle wasn't sure if he should watch or not as he heard the husky undoing his belt. He decided that for now, he would try to keep his eyes above the waist.

Soon, the tabby cat and the husky both stood in their underwear. The husky wore red boxer-briefs, while the tabby was wearing a baggy pair of dark-green boxers.

"All the way?" Tyler asked, looking at Jen. The husky stood with his thumbs hooked under his underwear's elastic band.

"All the way," Jen confirmed, nodding.

The tabby and the husky both continued to stand still.

"Heh," Kyle laughed, and scratched the back of his neck once. "On three?"

Tyler nodded.

Facing each other, they counted it down: "One, two, three."

On three, the tabby and the husky both pulled down their underwear.

In spite of himself, Kyle's eyes immediately locked on to Tyler's package, noticing how the glistening red tip of the husky's cock was already poking out of his furry canine sheath.

"I'm kind of excited for this," Tyler admitted, as he kicked his underwear off from around his ankles and onto the pile with the rest of his clothes.

"I'm uh... a lot more scared than excited," Kyle admitted.

"Aw. It'll be fun," Tyler promised.

The red fox, after a few final clicks, stood up from behind the desk. "Either of you know what this machine does?" he asked, giving the thing a hearty whack with the base of his palm.

Together, Kyle and Tyler shook their heads.

"Brain imaging device," the red fox said. From the desk, he picked up a white helmet, and held it out to the tabby and the husky, showing them the inside. "Wireless, non-intrusive. Put it on, sync it with this machine, and it should be as simple as that."

"Huh," Kyle said. Being an engineering student himself, he was at least passingly familiar with how much more difficult a brain scan typically was. "Is this like, as good as an MRI?"

"That's the goal for the final-final version," the red fox said, and nodded. "We're a little more rudimentary right now, but so far progress has been good. We've been able to get a lot of solid data from this thing as-is."

Tyler raised his hand a little to interrupt.

Jen, Kyle, and the red fox all looked to him.

"Hi, sorry, art student here," the husky said. "So can that thing read my thoughts--"

"No," the red fox answered.

"Is it dangerous--"

"You would have to get really creative to make it dangerous," the red fox said. "Like, I guess if you knocked it over onto yourself it'd hurt a lot?"

"Okay, jeez, fuck me for asking questions," Tyler said, and took a step back.

The red fox chucked. "Sorry. I'm a little defensive on this one. Spent a lot of time with this project."

"Any other questions?" Jen asked, smiling at the two naked test subjects.

"I'm good," Kyle said, tabby tail flicking around idly behind himself. He still felt a bit odd being naked around all these people, but, the fact that he wasn't the only naked one and the fact that nobody seemed to mind both helped a lot.

"Yeah, as long as it's safe, I'm alright too," Tyler said, and smiled as he wagged his husky tail a bit.

Taking a quick glance down, Kyle noticed that the husky was still poking out of his sheath just as much as before.

"I'm Connor, by the way," the red fox said, introducing himself to Kyle.

Jen, likewise, introduced herself to Tyler.

With that, the med students got the test subjects into their helmets. The helmets were sleek and lightweight enough that the tabby could barely even tell he was wearing one, once he got used to his pointy ears being smoothed back down.

Back at the desk, the red fox said, "Could both of you close your eyes for me?"

The two did as they were told.

"And open? Okay... raise your left arm? And down. Yup. Got it. We're rolling."

"Awesome," Jen said. She walked over past the machine, and pulled out a handheld video camera mounted on a tripod, which the tabby hadn't noticed was in the room. "Ready, you two?" she asked.

The tabby felt his heartrate speed up yet again, and with a nervous smile, he glanced over at Tyler.

"I'm good if you are," Tyler said, smiling as his tail wagged more and more.

"Heh. Alright, yeah. Let's do it."

Jen pressed a button on the camera, and a small red light at the camera's front started flashing. Continuing to stand behind the camera, Jen looked down at her clipboard.

"Heterosexual versus Homosexual Dynamic Imaging Trial, Iteration Two," she said, reading aloud from her papers. "Male male, experiment one. Subject A, the canine, reports to be homosexual, while Subject B, the feline, reports to be heterosexual. Subject A: do you consent to participating in sex with Subject B?"

"Can't wait," Tyler said: his tail had begun to wag against Kyle, brushing up against the fur on the tabby's butt. Kyle felt himself blushing under his thin feline fur.

"Subject A, please answer the question with yes or no--"

"Yes."

"Subject B, do you consent to participating in sex with Subject A?"

Heart racing, Kyle nodded, and said, "Yes."

"Faaantastic," Jen said, and with a pen, checked off a couple of things on her clipboard. "This experiment will consist of five stages: handholding, kissing, manual stimulation, oral sex, and anal sex. Both test subjects are encouraged to refrain from orgasm if they possibly can until the final stage, but, mistakes have happened in previous trials, so, no shame either way. If at any point either test subject would like to take a break or end the experiment, they may do so without question. Subject A, Subject B: please, hold hands."

Giddy, Tyler held out his hand for Kyle to take. The two of them stood side-by-side, facing the camera.

Kyle, though still second-guessing his choice to go through with this, reached out and joined his hand with the husky's. The husky clasped the tabby's hand firmly. In spite of the husky's effeminate voice, the canine's handhold was strong and manly. It was, undeniably, not like holding hands with a woman at all.

"Connor, how are we looking?" Jen asked.

"Five by five," the red fox said, and gave an 'okay' sign with his hand. With a smirk, the red fox added, "Subject B's readings are much more escalated than I'd expect at the handholding stage, but I don't think it's a machine error."

Kyle felt his long feline tail curl up in embarrassment as he watched Jen try not to laugh.

"Aww," Tyler said, and squeezed Kyle's hand.

Reflexively, Kyle squeezed back, and then felt even more embarrassed for doing so.

"Feel weird about this?" Tyler asked.

"Extremely," Kyle confessed, nearly trembling from nervousness.

"Here, let's just take a second," the husky said, and squeezed the tabby's hand once again. Looking to Jen, Tyler asked, "Permission to hug Subject A?"

"You're Subject A, genius," Jen informed the husky, and rolled her eyes. "But granted. Take as much time as you need."

Tyler let go of Kyle's hand, and once again offered a hug to the cat, extending his arms wide out to either side.

Feeling a little goofy about it, Kyle reached out and wrapped his arms around the husky's body. The husky, in turn, closed his arms around the feline.

Kyle's mind raced with all of the things he was feeling. He had only noticed just now how strong Tyler was. The dog hadn't looked especially muscular, but it was clear now that the dog had hard abs and big biceps to hug with. Kyle also noticed how, now that they were standing right up close with each other, their sheaths and balls were pressing up against one another. It was the first time in Kyle's entire life he'd touched another guy's junk. It felt a little strange, but, overall, it wasn't so bad either. Even the fact that the canine was rock hard inside his sheath was more of a curiosity than a cause for concern.

"Deep breaths, Kyle," Connor encouraged from behind the desk.

Together, Kyle and Tyler breathed in and out slowly.

"Better?" Tyler asked, voice reverberating through Kyle on account of how closely they were touching.

"Lots," Kyle said, and nodded. "Thanks."

"No problem. Like I said: we should have fun with this."

"Heh. Yeah. Agreed."

The two of them unhugged, and went back to handholding.

From behind the desk, the red fox reported, "I have everything I wanted from the handholding stage. Ready to move on if all of you are."

"Sounds good," Jen said. "When the two of you are ready, feel free to begin kissing."

Immediately, Tyler pulled Kyle in and gave a long, slobbery canine lick from the base of Kyle's chin to the top of his feline head. Kyle snorted in laughter, and recoiled from the surprise.

Before he could second-guess himself, Kyle then leaned in and kissed the husky back, planting a kiss on the very front of the dog's muzzle. Both of them gave an awkward smile and laugh. The husky's tail was going wildly back and forth. The tabby's tail moved freely around the air, seeming to be fairly excited by all of this.

"You two don't have to keep standing, by the way," Jen mentioned. "The point of the helmets is that you can move around freely."

"Hehe," Tyler giggled. "I'd prefer to lie down if you would," he offered.

Kyle nodded, and sat down on the floor. Tyler sat down with him, and then the two laid out on the ground on their sides, facing one another.

Kyle started to reach out for the husky, but then double-checked, "Mind being grabbed?"

"My body is all yours," the husky said, tail still wagging.

"Heh. Cool."

With that out of the way, Kyle reached out to wrap his arms around the husky and pull the dog closer. The husky, in turn, wrapped his arms around the tabby as well. The two of them made out on the room's hard floor, rubbing their hands down one another's soft furry sides and backs as they did. Kyle was surprised by how enjoyable he was finding this. The idea of kissing a man had never appealed to the tabby before, but, the idea of kissing Tyler wasn't all that bad at all. It actually was a lot of fun. The canine kissed playfully, and the way the dog rubbed with his hands got Kyle purring in no time.

As they continued to kiss, Kyle couldn't help but notice that Tyler's hands gravitated lower and lower down the back, until both of the canine's hands were firmly grabbing each of the feline's butt cheeks. Kyle felt awkward about this, but by this point, he trusted the dog's touching quite a lot. Unafraid, Kyle reached down and put one of his hands on Tyler's ass, and gave it a squeeze.

Tyler flinched and let out a little giggle.

"I'm tempted to let this play out," Connor said, speaking up from behind the desk. "But for this to have scientific integrity, we do have to follow some semblance of a procedure. Please, if you two could: this is just the kissing stage."

"Soorrryyy," Tyler said, using a drawn-out 'I'm not really sorry at all' voice.

"Heh. Got a little carried away," Kyle admitted. "This is, uh. Not what I expected, to be honest."

From behind the desk, Connor snickered. "What were you expecting, chief?"

"Well, um. To be perfectly honest, I was expecting not to like it."

"D'aw," Tyler said, and gave Kyle a kiss. Kyle's tail flicked happily.

The two of them got back to kissing, trying not to get too handsy. The tabby no longer felt tense at all about the husky touching him.

"Okay," Connor said, after a while. "Interesting readings. Think we're good here though. Ready to move on when you all are."

Kyle and Tyler stopped kissing each other, and looked up at Jen for instruction.

"If you two are both comfortable with it," Jen said, "the next stage is manual stimulation."

From the floor, both the tabby and the husky continued to look up at Jen inquisitively.

The black dog sighed, and clarified. "You might also call 'manual stimulation' a handjob."

"Ohh," Kyle and Tyler said in unison.

The two of them adjusted a bit, so that they were both sitting up cross-legged, face to face.

By this point, Tyler's red rocket was poking all the way out of its sheath. The dog's member throbbed, appearing more than ready to be 'manually stimulated' by the tabby.

The tabby, on the other hand, wasn't hard in the least: his member was still soft inside its feline sheath. As much fun as he was having with this, he hadn't felt much of anything stirring down there the entire time he'd been here.

"Okay for me to touch?" Tyler asked.

"You can try," Kyle said. "Sorry I'm not..."

"I don't blame you," Tyler said with a shrug. "You said you were straight."

Kyle nodded.

Tyler reached out and rested the tips of his fingers on Kyle's soft feline sheath. The tabby smirked a little bit at being touched there, but felt much more tickled than aroused.

Tyler tried rubbing up and down on the sheath, cradling the balls, and even poking a finger down into the sheath to touch the cat's penis directly. Even after all of this attention, the cat didn't get more than a quarter hard. Still, Kyle's tail flicked around playfully as the husky played with his package. Even if it wasn't doing much for Kyle sexually, it was a pretty fun game.

"Good effort," Kyle said, and leaned forward to give the husky a friendly kiss.

The husky kissed the cat back, wagging his tail as he did. "Wanna see if I'm a little easier?" the husky asked, smiling as he glanced down at his own big, throbbing cock.

Kyle let out a little giggle, nodded, and then reached forward to touch Tyler's dick. As soon as he wrapped his hand around it, Tyler let out a soft moan, corners of his lips raised in a smile.

Carefully, Kyle began to rub his hand up and down the husky's member. The dog's cock was definitely bigger than Kyle's was, and the tabby found it kind of fun to feel what such a big dick was like.

"Faster," Tyler asked, looking like he was in heaven from just the handjob alone. Although he was still sitting cross-legged, the dog was practically thrusting up into the tabby's hand.

Happy to oblige the husky, Kyle started jerking the dog off faster, going at the pace he would probably go on himself. Immediately the dog's moans grew louder and longer, and his toes curled and uncurled as he tried to contain his pleasure. Continuing to jerk the dog off, the tabby smiled at the amount of pleasure he was giving to this guy who he'd only met less than half an hour ago.

Suddenly, the dog pushed Kyle's hand away. Kyle backed off, and raised both of his hands up in front of himself to show that he wouldn't touch anything.

The dog sat still for a few seconds, eyes closed, head down, breathing heavily.

"Did Subject A ejaculate?" the red fox asked.

"Subject A did not ejaculate," Jen said, leaning forward a bit to make certain for herself.

The red fox whistled. "From what I'm looking at, that was one impressive last-second save. How do you feel, Tyler?"

"Amazing?" Tyler answered, still panting a little. He stopped hanging his head, and looked up at Kyle. "You're really good," he said to the tabby.

"Heh. Thanks. I'm liking this too, to be honest."

"Can confirm," Connor mentioned. "Both test subjects are very happy right now, by my readings. Subject A--Tyler--is also showing a lot of sexual satisfaction, while Subject B--Kyle--seems to just be having a good time, mostly removed from any sexual ideas. Mostly. Gotta hand it to you for getting a straight test subject in here for a male male experiment, Jen."

"Oh, don't thank me," Jen said. "Hats off to the straight guy himself for going through with it. Are we ready for the next stage, Connor?"

"Yes ma'am," the red fox said, and nodded.

"Looovely," Jen said, making a few marks on her clipboard. "If you two are comfortable with it, we'll move on to the oral sex stage."

Kyle and Tyler, both of them smiling, looked each other in the eyes.

Then, with a little bit of embarrassment, the tabby cat looked down to his own crotch, where his penis was still hidden inside its sheath. "I um, really don't think it's gonna come out and play," he said, giving it a poke. "Sorry."

Tyler rolled down onto his stomach in front of the cat, so that his face was right in front of the cat's sheath. The dog kissed and licked at the tabby's soft feline sheath, as well as the cat's balls. Kyle giggled a lot from the attention, and finally felt a little something stirring down there. Still, as hard as Tyler tried, he couldn't get more than the very tip of the feline's cock to come out of its sheath.

"Must just be something magic about girls to me," Kyle said with a little shrug.

"Hey, fair enough," Tyler said, and shrugged too.

The whole time Tyler had been trying to coax out Kyle's cock, he had also been playing with himself, keeping himself hard and ready.

"Wanna give mine a try?" the husky asked, presenting himself to the cat.

Kyle licked his lips, and nodded.

Tyler sat up right, back against the wall, legs spread wide apart.

Kyle laid on his chest between Tyler's spread legs, facing the canine's big red cock. Now that he was face-to-face with it, the idea of sucking it was actually a bit more intimidating.

"Any uh, pointers?" the tabby requested.

The canine snickered a little. "I'm sure you'll figure it out? You can start by giving it a lick if you want to."

Doing as he was told, Kyle stuck out his tongue and licked from the base of the red rocket all the way up to the end.

Tyler shuddered, tail giving a couple of little wags.

"I love those little bumpy tongues you guys have sooo much," Tyler said, as Kyle went in for a second lick. "They--ah, mmmm. They're so tickly. My boyfriend is a cat too."

"Oh, my girlfriend too," Kyle mentioned, and then gave the dog another long lick. "Heh. I'm with you. Cat-tongue blowjobs are really good. I just never thought I'd be the one giving one."

With that, Kyle started sucking on the end of Tyler's big canine cock, using one of his hands to hold the big member steady at the base. Kyle bobbed up and down, going slow at first, tasting Tyler's manhood, and learning what it felt like in his mouth. Tyler moaned as Kyle went, husky tail thumping against the wall behind himself.

Kyle tried to go deeper, but found that he couldn't even get a third of Tyler's cock in his mouth before gagging.

"You can take it easy," Tyler said, and reached down and scratched the tabby's chin, making the cat giggle and start to purr. "I'm happy with just the tip, and I'm not supposed to cum quite yet anyways, so."

Kyle gave the dog's cock another lick, and then went back to sucking on the head. The shape and feel of canine anatomy was intriguing to the cat, and he was happy to get to play with it this intimately. As he sucked, he also started to feel the dog's balls, which set the dog moaning pleasurably once again. From the way Tyler writhed around, Kyle could tell that the dog was close to cumming yet again.

The two of them were going at it for a few minutes before Connor mentioned, "Good on oral sex stage."

Somewhat reluctantly, Kyle stopped sucking Tyler's cock. The two of them shared a quick kiss, and then Kyle sat back against the wall beside Tyler.

"You guys are doing great," Jen said, smiling down at the two test subjects.

Half-joking, but half-not, Kyle wrapped an arm over Tyler's shoulders. He felt the dog's heavy breathing, and then realized that he was breathing kind of heavy too. This whole thing had been more of a workout than it had seemed.

"The final stage of this experiment is the anal sex stage," Jen said. She reached over to the desk, grabbed something off of it, and held it up for the two to see. "Once the two of you can agree who's on top and who's on bottom, this lube is all yours."

Kyle and Tyler both looked at each other. Kyle reached down and felt himself. He was feeling... something. But whether it was because of nervousness or just because he really was that straight, his cock remained inside its sheath. Tyler, on the other hand, had been ready to go from the moment they'd first taken their clothes off.

"Would you be able to bottom?" Tyler asked. He rested a hand on Kyle's thigh, and gave the cat a little rub. "Because, I'm down to top, obviously. But if bottoming isn't your thing, then I've already had plenty of fun."

Kyle took a deep breath, and thought about it. For his entire life, his ass had been an 'exit only' hole, and until now, he'd never once seriously considered changing that. But he and Tyler were having such a good time, and he did want to finish the husky off. He knew that there were a lot of guys who enjoyed getting fucked, obviously. He found himself curious about what exactly the appeal of it was.

"Promise you'll go really slow?" Kyle asked.

"Of course," Tyler said.

Kyle gave the dog a kiss, and the dog kissed him back.

"I'm bottom, he's top," Kyle announced to Jen.

Jen, in response, tossed the little bottle of lubricant down to Tyler, who caught it. The husky and the tabby kissed one more time before the tabby got onto his hands and knees.

"FYI," Connor chimed in, "You two are the only strangers we've paired up who have kissed outside of the kissing stage. It's adorable, just so you know."

Both test subjects blushed a tiny bit under their fur at learning that. Continuing to kiss had just seemed natural to the two of them.

"Tell me what you're doing," Kyle requested, closing his eyes tight as he waited for Tyler to get started. Jittery, the tabby rocked back and forth a tiny bit on his hands and knees.

"We'll just start with massaging the outside," Tyler promised. "So that you can get used to me touching back here."

"Okay," Kyle said, and then suddenly held his breath as he felt a lubed finger press up against his hole.

"Good?" the husky asked, keeping the finger held in place against the tabby's ass.

"Keep going," Kyle said, and nodded.

Slowly, the husky began to rub his fingertip up and down over the tabby's presented asshole, teasing it. He continued to rub it over and over again. Kyle, fist clenched, felt extremely weirded out by the sensation, though not in an entirely bad way. As strange as it was to him, he wanted the husky to keep going.

"You're gonna have to loosen up, just so you know," Tyler mentioned. "Like... you're gonna have to loosen up a lot."

"Loosen... what exactly?" Kyle questioned.

"I'll give you three guesses, silly," Tyler said.

Kyle then felt his asscheek get licked by the dog, and laughed a little. "Okay, I'm sure you're right," Kyle acknowledged. "Like, yes: a not-clenched ass would be easier to put stuff in. But uh... how? Because basically every instinct in my body is saying to keep battening down the hatches right now."

Tyler laughed, and continued to gently rub Kyle's hole. "I don't know how to explain this without being gross."

"Go for it. We're past gross," Kyle said.

"Hehe. Alright then. It's the same muscles you use for doing a poo. You've only ever used them to let stuff out, but, they're pretty much the same exact muscles you wanna use to let stuff in too. The only difference is that your brain says no to in, because you've never done it that way before."

"So... okay. I'll try," Kyle said.

"You used the bathroom before coming here, right? Hopefully?"

"Yeah."

"Number two?"

"Heh. Yeah," Kyle said, feeling like under any other circumstances, he would be weirded out by talking about that so bluntly. He moaned a tiny bit as Tyler pressed harder against his hole for a second.

"If there's nothing in there, then you shouldn't have to worry about anything coming out. So, it's safe to relax. I promise there's nothing you can do that was more embarrassing than my first time anyways."

"Heheh. Challenge accepted," Kyle said.

Fighting against his bodily instincts, Kyle 'pushed' with his tailhole against the husky's touch: as soon as he did, the husky's lubed finger slipped right into his feline butt.

"Ah! Woah," Kyle said. "I-is that good?"

"S'great," Tyler said, sounding like he was smiling. "Try to keep loose while I move it in and out."

"Okay. On it," Kyle said, and nodded.

The tabby felt as the canine slowly moved his finger farther in, and then once it couldn't go any farther, started to take it out. The cat shuddered as the canine was pulling out: although having the finger pushed in had been a completely new experience, having the finger come out again made the cat feel like he was leaking out gross things onto the canine's hand.

"Is everything 'clean' back there?" Kyle asked.

"You're clean," Tyler said. "I promise, this is way sexier for me than it probably feels for you."

"Th-thanks?"

"Hehe. Trust me, you're doing really good for your first time," the husky said.

Slowly, the husky pushed his finger back into the cat's tailhole. The cat focused on the feeling. He felt stuffed, like he was being filled up, which wasn't exactly untrue. He also felt weirdly girly, all of the sudden. And on some part of his mind, the tabby now felt like he was completely under the husky's control: that the husky could change a lot about how the tabby felt right now with just the twitch of a finger.

Slowly, the husky started pulling his finger out again.

Again, Kyle had to ask, "Are you sure there's not--"

Tyler pulled his finger all the way out of the cat, and then leaned forward to hold the finger out in front of the cat's face. Kyle opened his eyes, and saw that the dog's finger had nothing but lube on it.

"Seriously, you're alright," Tyler promised. "Even if there was poo, that would be one-hundred percent understandable, since I'm fingering your butt and all."

Kyle let out a tiny nervous laugh, and said, "Okay. Keep going. I can take it."

With a smile, Tyler asked, "Want me to show you what makes anal so fun for most bottoms?"

"Sure," Kyle said.

Tyler pushed his finger against Kyle's hole once again. Though the cat was still very tight, the finger did go in after Kyle remember to loosen up a little bit.

As soon as Tyler was in this time, he curved his finger and started rubbing a spot inside the tabby's ass that the tabby had never felt before: it felt to the cat like the dog was rubbing his penis from the inside, and immediately, Kyle called out in a mix of pleasure and surprise.

"That's your prostate," Tyler said, giving it another little poke.

The tabby suddenly realized that, at just the slightest touch on the prostate, he was now very aroused: his cock, hard as a rock, had come out of its sheath.

"D-do it again," Kyle said. He was finally feeling something sexual here, and he wasn't ashamed to admit that he liked it a lot.

Tyler, noticing how intense the cat's reaction was, began to slide his finger quickly in and out of the feline's tailhole, rubbing the cat's prostate with every little movement.

"Ah!" Kyle shouted, as the husky suddenly started using two fingers for a better reach.

"Too much?"

"No, keep going," the tabby cat begged. "I really like this."

The husky, after quickly adding a bit more lube onto his fingers, got back to fingerbanging the 'straight' kitty. Kyle, though feeling very strange to be getting fingered by a guy, found it hard to think about anything besides how overwhelmingly good it felt throughout his entire body to have just that tiny spot in his ass touched. He was shocked it had been there his entire life and he was only just now learning about it.

Too soon, Tyler stopped fingering the feline, causing the cat to let out an inquisitive mewl.

"I didn't want to surprising you by switching without telling you, but I think you're ready for my cock if--"

"Fuck me," Kyle said, closing his eyes tight in preparation.

Tyler lubed his big canine cock, and lined the head up with Kyle's asshole.

Kyle relaxed as best he could, and then swore in surprise as the dog's huge penis actually entered him: it was even bigger than he'd been expecting. The cat took deep breaths, and tried to keep loose for the dog. Though it was an extremely tight fit, the husky was able to stay inside the feline's ass. Slowly, the husky pushed in even farther, reaching new depths inside the cat, who found himself purring, overwhelmed by all of the conflicting--but pleasurable--feelings inside of himself.

The husky pulled out a bit, and then pushed back in again, in a tiny little hump.

"Just to be clear," Tyler said, buried to the hilt inside the cat. "Those are 'I like this' purrs, and not 'I will kill you' growls, right?"

"Definitely purrs," Kyle said, now rubbing his feline cheek against the floor, writhing around in all of the good feelings he was having. "Use me. I want you to fuck me as hard as you can."

Still buried inside the cat, the dog leaned down and gave the kitty a kiss on the back, right between the shoulder blades. "I don't wanna hurt you," Tyler said. "I like ya too much."

"Aw."

"You are sexy as fuck though," the dog said, and started to hump the cat, giving long, slow strokes both out and in. "You like that?"

"Sooo much," Kyle nodded, feeling himself on the verge of cumming in spite of the fact that he hadn't even touched his hard dick yet.

The husky put his hands on the tabby's hips, and gripped them as he started to hump faster, squeezing the feline as he pumped in and out of the cat's tailhole. Both of them were moaning now, calling out each other's names, telling each other how good they felt. Before long, the dog was panting, wrapped tight around the cat's hips and pumping for everything he was worth. The cat, unable to contain himself any longer, came hard from the husky's thrusts, shooting his cum all over the ground. The dog, feeling as the cat came, didn't take long to follow after, cumming deep inside the feline, making the cat his. He only realized after he had shot several loads into the tabby cat that in the heat of the moment, he had started biting down on the scruff of the cat's neck.

In a hurry, Tyler released his bite on Kyle, and apologized profusely, asking if he was okay.

In response, Kyle just let out an exhausted, pleasured moan.

Carefully, the two of them laid down on their sides. Tyler had knotted in Kyle's ass, and he was very sure that this knot wasn't going to go come down anytime soon. The cat purred as the husky held him in his big, strong, manly arms. Right in this moment, the tabby had definitely enjoyed getting fucked, and he was definitely enjoying being the husky's little spoon, and he was definitely enjoying as the dog's big cock stayed inside of him. He was pretty sure that that made him less straight, but for now, he didn't really care.

"Pst. Kyle," Tyler whispered softly to the feline.

"Yeah?" Kyle asked back, also whispering.

"I think some weirdos are watching us."

Kyle opened his eyes, and looked up at the black dog and the red fox in the room. "Oh. Right. This, uh... hi."

Jen smiled down at the cat and the dog, and told them to take their time.

Carefully, Kyle started to turn around on Tyler's knot, until the two of them were facing each other. Tenderly, the two of them hugged and kissed.

"Wanna do this again sometime?" Kyle offered, and gave the dog a little nuzzle against the neck. "If our boyfriends slash girlfriends are okay with it. My girlfriend is the one who put me up to this in the first place, for what it's worth, so I'm sure she'd be interested."

"Hell yeah," Tyler said, and gave the cat a big kiss. "This was too much fun to not do again."

When Tyler's knot went down and he slid himself out, the two of them helped each other out of their helmets, helped clean each other up, and then they each got dressed again.

"Well. Thank you both a ton for doing this," Jen said. "You're free to go, unless you need to rest a bit longer. I'd understand. I don't think we've ever had an experiment go remotely how this one did. Fun stuff. Tell Megan I said hi again."

"Heh. Yeah uh, will do," Kyle said.

"You guys remember the way out?"

Both of them nodded, said goodbye to Jen and Connor, and headed out into the hall together.

Before they left the door that led back into the waiting room, Kyle stopped the husky for one last thing.

"One more kiss?" the tabby cat asked.

Tyler nodded, and hugged the cat as the two of them kissed one more time before leaving.

"Thanks," Kyle said with a smile. His tail flicked around friskily and Tyler's tail wagged as the two of them went back into to the waiting room to see their significant others.