A Small but Lasting Side-Effect [Commission]

Story by Incognito Pichu on SoFurry

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Commission for

@AstroSecant

A commissioned sequel to my 2018 story, "A Small Side-Effect"

Proof that fire-types and grass-types can work together in certain situations... or certain humans...


Disclaimer: This story contains themes of relationships between pokémon and humans as well as explicit descriptions of sexual acts between males. If any of that offends you, I suggest you not read any further.

~~~~~~

A Small but Lasting Side-Effect

“Gghhh… Ah! Z-Zyde!"

The Charmeleon cock jabbed a spot inside me that made me see stars. I tried holding back the moan as much as I could, knowing what it would cause, but as soon as the sound slipped past my lips, I saw his expression growing. He was laying on his back on the bed, with me upright, impaled on his erection, facing him. I couldn't even pretend that I didn't see that smug look forming on Zyde's face.

“Heh, that spot always gets you going, doesn't it, Randal?" Without even letting me respond, he drew back and pounded into me again, directly in the same spot, drawing a second yelp out of me, “Love having you as my literal cock sleeve, Randal!"

I hate when he gets like this… He gets all smug and dominating, every time he's on top, and lately he's been even worse. It almost makes me want to tell him to just stop, and pull out of me…

…almost…

“And it looks like you love it too, don't you? Heheheh…" Zyde, ever careful with his sharp claws, ran a finger across my front, finding my erection, and tapping it lightly, just testing to see exactly how hard I was, to which the answer was, “as steel."

Even though I didn't respond to his little remark, my moaning and trembling were more than enough indication that his words were true. He chuckled again lightly as he kept up his pace, as if he knew exactly how close I was to hitting my limit. Hell… with as often as we've been at this over the past week, he probably did know exactly how close I was, which is exactly why he was drawing it out…

“G-God, Zyde… just shut-uuu—UAAAGHH!"

His thrust was perfectly timed, and I'm sure the mild yelp that he drew out of me was no accident either.

“Heh, that's right!" just as quick as he jabbed in a moment ago, he pulled back, ready to deliver another strike, “And now… Gonna make this little thing of yours blow!"

Before I even had a chance to brace for the oncoming impact, he slammed in, hard enough that he would have thrown me completely off of him, had he not been holding me as firmly as he was.

“GAAAAAAH!"

With yet another shout, and seamlessly aligned with his words, I felt my orgasm hit, and hit hard. I felt the wave of sensation travel through me, and the warm wet strings of my essence land over my lower body.

“Z-Zyde… -hah hah- t-too much… -hah-"

Zyde held us still for a second, presumably giving me a moment of respite after my orgasm. “Love having you at this size, Randal, heh…"

I glanced down at my midsection, and just as I had expected to see, a protuberance in the shape of Zyde's cock extended out from my gut, a sight that I had grown used to seeing over the past week, ever since I had been reduced to my current stature, which was… just below two feet tall…

Usually, I'm right around six feet tall, but thanks to an experimental treatment that had an unforeseen reaction to the heat of a fire-type pokémon, I now find myself at about a third of that size. Unfortunately, that also places me noticeably shorter than Zyde, my Charmeleon, a fact that he has not let me forget.

Whereas Zyde and I have occasionally messed around in the past, it's generally been a trade-off, where we'd take turns being the one on top. That all went out the window after my little mishap though. Ever since my size has been reduced, I've basically been nothing but a cockwarmer for the fire-type, and our occasional fooling around turned into a multiple-time-per-day ritual…

Put quite frankly, Zyde was definitely taking advantage of his suddenly superior dimensions, and I probably would have done something about it… if it didn't feel so good… A side effect of the experimental serum was that it caused my body to be much more malleable than usual, to such an extent that Zyde's dick, which was a tight fit to get into me, even at full size, was able to slip into me without causing me any pain at all. Instead all I felt was the indescribable sensation of being stretched far beyond what should've been possible, which as it turns out is a fairly addictive feeling.

“Alright, that's a long enough rest, Randal." Zyde placed his claws around my waist, and gripped firmly, “Time for you to fulfill your duties as my cum dumpster."

He didn't wait for my permission, as he knew he didn't need it, he simply picked up right where he left off, wasting absolutely no time re-attaining the tempo that he was at moments ago, and quickly surpassing it.

“Ah! Ahh!" Not even having fully recovered, I was little more than a ragdoll in the grip of the fire-lizard, and he was using my unresponsiveness to his advantage.

“Ngh… You love it, don't you Randal! I should unload everything I have inside you, shouldn't I? Give you everything I got, -ngh- and fill you up like a water balloon."

It was just more of his dirty talk, he didn't expect me to answer any more than I expected to provide one. It surprised us both when the words passed my lips.

“Y-Yeah… do it."

“Uh… huh?" His expression changed to a combination of surprise and concern, and he actually paused his movements.

If there was one thing that we'd been pretty careful about, it was Zyde pulling out of me. He's always been rather… productive, and the first time we did it with me at this size, just a few spurts from him left me looking like I was nine months pregnant. I couldn't really imagine what it'd look like if he blew his entire load into me.

Though, apparently… I was ready to find out…

“Randal… you sure? I mean, you have the appointment, and it—"

I cut him off before he could finish, “Y-Yeah, I'm sure, just… ngh… I n-need it…"

In an instant, that smugness returned, as if it had never left, “Heh… that's right you need it!" And just that quick, sounds of his hips slapping against me filled the room again.

I grit my teeth, and did my best to endure. The filling feeling was already starting to get to me again. I could feel Zyde's pre leaking into me, and the indicative heating up of the thick Charmeleon dick. I'd felt it at least 10 times over the past week, and I could guarantee it meant that Zyde was about to pop.

His thrusts quickly became shorter, and his breaths were increasingly erratic. Then with the tightening of his grip, he leaned his head in and spoke, “Gonna g-give you what you want, you little fucktoy!"

The feeling was instant. Zyde's volcanic semen erupted into me, immediately starting to round out my gut, and with the second and third blasts, I had expanded enough so that the distention caused by Zyde's cock was no longer visible. The feeling was incredible, as usual, I wasn't experiencing any pain, despite the impossible stretching I was receiving, it was just… filling, and incredibly warming.

“NGGGAHHH! ZYDE! DON'T PULL OUT!" I shouted out, worried that he might pull himself free prematurely, I got no response, outside of a moan, which apparently meant that he was happy to comply.

A few more spurts, and my gut had expanded so far that I couldn't even wrap my arms around it, and as much as it felt like I couldn't handle any more, I still wanted more… Unfortunately, just as quick as it began, the torrent slowed, and Zyde slipped himself out of me with a wet slurping sound.

Completely spent, I was in no position to move afterwards, I actually doubted that I even could. I did little more than lay exhausted and motionless as Zyde moved me off of him, and onto the bed, before hopping off and stretching a bit. He turned to me, still smirking a bit, “Didn't expect that from you, Randal."

“Yeah, well… -pant pant- I figure that since I have the appointment at the testing facility coming up, -pant pant- we should probably make that our last, err… session, until afterwards. So, I kind of wanted to satisfy my own curiosity…"

Zyde grabbed a few tissues and started to wipe himself off a bit, “Oh yeah… I guess your appointment is this weekend…"

“Yeah, and Doctor Costas said that the whole shrinking side-effect thing wouldn't last more than 24 hours, so this gives plenty of time for us to let it wear off."

Seemingly approving, Zyde began to make his way out of the room, presumably to clean himself up a little, “Alright Randal, I guess that's fine. I'll even let you have my bed all to yourself tonight."

“Huh?" I looked around, a bit confused, “Zyde, it's my bed…"

“Yeah, well… You own the bed, and I own you, so by the transitive property…"

With that last smug statement, the fire-type strode out of the room, I thought to open my mouth to say something in retaliation, but with the exhausted state that my mind was in, I couldn't come up with anything wittier than an awkward stammer, “I… Zyde, you…" With a sigh I just muttered to myself as Zyde was no longer within earshot, “Stupid Charmeleon…"

~~~~~~

The next evening…

“Ugh… still…?" Randal stood in front of the mirror with the measuring tape, checking his height for the 15th time of the day, “It's been over 24 hours, and I haven't grown at all… I think I'm even half-an-inch shorter…"

Randal mulled it over in his mind as he walked through the hallway, and into the living room, where Zyde sat on the couch focused intently on a video game he was playing.

“How can you play a game at a time like this?"

Zyde didn't look away from the screen to respond, “Huh? What do you mean?"

“I mean, my appointment is at 8 AM tomorrow, less than 12 hours away, and I'm still the size of a fucking Charmander!" I shouted at him, hoping to at least pull his attention away from the video game for a moment.

“Nah, you're a little shorter than a Charmander, at least compared to my height when I was a Charmander…"

I sighed at his nonchalance towards the situation, “Zyde! This is serious!"

Finally, I saw the game on the TV screen pause, and concurrently, Zyde's gaze turn towards me, “I know Randal, but what do you expect me to do? It's not like I can stretch you back to normal size! I'm not a doctor, so I don't know why you—"

Zyde stopped flat out, as if something just clicked in his mind. I followed his eyes that seemed to be leveled on my gut, “Zyde…?"

“Err… Randal, you still have that bulge in your stomach from last night?"

I ran my hand lightly over my midsection. There was still a bit of a swell there, nowhere near the level that it was last night, but still slightly noticeable, “Uh, yeah… a little. It's mostly out, but it was… a lot."

“So…" Zyde suddenly seemed a bit apprehensive, and I couldn't help but get a sinking feeling as he continued on, “…interesting fact about fire-type semen… It's intended to not cool down for days, it helps with egg creation, or something like that… If there's still any in you, that might be why you're not gaining any height back."

“WHAAAT!?! ZYDE! YOU COULD HAVE TOLD ME SOONER!!"

“Sorry! I usually don't think about my reproductive specifics while I'm in the middle of an orgasm!" He hopped off of the couch and grabbed my cell phone, “I'll uh… call the doctor! I'll make up something about why you can't make your appointment tomorrow! It'll be fine!"

With that, he zipped out of the room with the phone in hand, doing his best not to look me in the eye. I couldn't even think straight, my mind was an odd mix of panic, anger, and confusion. It's probably a good thing that Zyde was making the call, as I very likely wouldn't have even been able to speak coherently.

It was nearly an hour before Zyde stepped back out into the living room, with somewhat of an awkward expression spread across his face.

“So, I told him that we forgot about the 'hot beverage' thing, and I made you some hot tea, because you have a sore throat. I told him that it caused you to shrink slightly, and that you wouldn't be back to normal in time for the appointment tomorrow."

Zyde paused, seemingly waiting for my reaction, “Okay… and…?"

“And… he said you'll be fine, but we'll need to start the process over again. We have to wait two weeks to make sure that the first dose of the stuff has cleared out of your system, and then you can restart the whole experiment."

“Ugh, two weeks? Plus I have to start over?!"

Zyde put my phone down on the counter, “Yeah, the timing of the second injection is pretty important, apparently. With the serum in your system compromised, introducing a second dosage wouldn't be a good idea.

Thankfully, I had already been sitting down when Zyde came back into the room, otherwise that news might have made me collapse.

After a brief pause, Zyde walked over, and took a seat on the couch next to me, “Sorry Randal… at least you learned something about volunteering for weird experiments, right?"

I shot the Charmeleon a sideways glare after hearing the somewhat snide comment, “What? Are you seriously choosing this moment to say 'I told you so'?"

Zyde brought his arms up, “Hey! I mean… I did say that this would come back and fuck you, I'm entitled to bring it up at least once!"

“The experiment isn't the problem, Zyde! It was literally YOU that fucked me! I wouldn't be in this situation, if it wasn't for you and your volcanic cum!"

“Hey don't blame me! I'm not the one who was shouting 'Zyde! Don't pull out!' was I?"

I looked away in anger as I had no quick response to that. As angry as I was at the situation, I couldn't deny that I did play an integral role in the unfolding situation. Still I felt like I had to say something back in my defense, “Yeah, well… I was lost in the heat of the moment! Y-You should have known better!"

It turns out, that was the wrong thing to say.

“Oh? Is that it Randal?" I could immediately tell from the new inflection in his voice, and the stupid smirk forming on his face, “You just love my MASSIVE Char-cock that much?"

He pressed a claw to my chest, as always careful not to scratch or cut me, and pressed firmly, coercing me to lay down on the couch as he started to climb over me.

“Zyde… c-come on…"

“No, no… I take full responsibility. I should have been more aware of the effect that my cock has on you. I promise to not make that mistake again."

He leaned in, clear intent on his face, a look that I'd definitely seen several times over the course of the week. “Neither of us has gotten off today, Randal… and we have to wait two more weeks anyway."

He was close enough that I could feel the heat radiating from his body, though with him being a Charmeleon, that's not particularly odd. He was right about neither of us having done anything today, and with the next session now a whole 14 days away. I was having trouble thinking of a reason to resist his advances.

“Zyde… we shouldn't. I-I need to get back to normal…" I said the words, but there was no stock behind them, Zyde didn't believe them in the slightest, hell… I didn't believe them in the slightest. I was even finding reasons to justify it in my mind.

Well, I'm not even empty from last night, so what does it matter…

I could feel Zyde's pokéhood, emerging from his slit, slick hot flesh, sliding against my leg, and my mind instantly defaulted to the image of Zyde grabbing me, flipping me over and slamming into me with everything he had. At my current size, his word choice of massive to describe his size was very much on-point, and as much as I denied it to him, and even myself, he was decidedly skilled at using that size to make me see stars.

He leaned his face in and spoke low, barely more than a whisper, into my ear, “Alright, I guess we can wait then…"

“N-NO!" I sounded far more enthusiastic than I intended to, but that wasn't what I was concerned with.

Zyde gripped my sides, but where I expected to be flipped onto my front, he kept his head in place near my ear, and instead began licking and nipping at my ear and neck.

“Ah… w-what are you do—oooing…?"

With another warm lash of the tongue against me, he answered, “Just… trying something new…"

It indeed was something new… Usually, even before the whole experiment thing, our little escapades were largely just for pleasure. One of us using the other one, simply to get release. This however, was different… I didn't really know how to react to it, but I was definitely enjoying it.

I eventually felt him sliding upward over me, his already leaking need, sliding up over my leg, over my own erection, and eventually over my torso, coming to a rest right at my chin.

“Open, Randal."

A simple command, and it was very clear what Zyde had in mind. I hesitated, but only slightly, it was almost as if my mind was on autopilot as I obeyed, slowly parting my lips for him. A moment later, I could feel the intense heat of Zyde against my tongue.

Am I actually sucking Zyde off…?

The feelings of disbelief swirled through my mind. Even as it was happening, I couldn't believe it. This wasn't a thing that we had ever done before, or ever even discussed, somehow though, it felt pretty natural. I couldn't handle more than the first few inches of firm flesh, but that seemed to be enough, at least, judging by the pleasured sounds he was making, that… and the claw lightly gripping my head as he softly gyrated his hips.

“Rrrr… You can take it deeper than that, Randal… C'mon, make room in that little throat of yours."

Immediately after saying that, his gentle thrusts began packing slightly more force, and his tempo increased just a bit as well. It was kind of unexpected however, when he actually did get himself deeper, and I wasn't quite sure how.

“Mmm… That's right, stretch those lips around me, heh…"

That's when the realization hit me, the experiment was clearly affecting my entire body, so why wouldn't my mouth be subject to it as well? It seemed that Zyde had figured out the same thing that I just did, he gave another quick hip thrust, getting another inch or so into me, and giving me a taste of his pre, which thankfully did not burn the back of my throat.

I didn't want to admit it, but I was actually getting into it, and it was abundantly clear that Zyde was getting into it too. I even tried forcing myself down a little more, and began to wonder why we hadn't done this before.

I got my answer a second later, the hard way, when I found my breathing moderately impeded, and then a moment later, completely impeded. Zyde thrust once more, getting maybe another half-inch of his length into me, which was apparently the exact amount needed to cut off my airway.

I tossed my hands forward on to Zyde's thighs, and pushed away, and thankfully he didn't use any force to hold me in place. I suspect that he was expecting the outcome, even before I reacted.

** COUGH COUGH HACK **

“I know that you love literally choking on my cock, Randal… but, I think this huge fire cock might be too much for you."

I wiped my mouth with the back of my hand, clearing the pre that I had sputtered out, and rolled my eyes at him. Zyde was about seven inches… maybe seven-and-a-half inches long, but proportionate to my current size, I was in no position to object to the statement, not that I had a chance to anyway. Satisfied that my little coughing bout was over, the claw was quickly back in place on my head, and I was pulled forward again, this time though, my cheek ended up pressed firmly against the shaft.

“Back to work, Randal! I'm getting close!"

He didn't need to tell me twice, my tongue was out even before he finished the sentence. I lapped dutifully at the flesh, even brought my hands up to help stroke the tip while I licked closer to the base. I got back in rhythm right away, hearing the same light moans from Zyde that he had been letting out just a few moments ago.

“Can't -ngh- wait to wear my cream, can you -ngh- R-Randal?"

I had grown pretty used to it during the past week, I could feel it coming. The firm organ started throbbing lightly, its temperature increased, and Zyde's grip tensed. It wasn't particularly unexpected when a hot stream of white arced into the air, and then down onto my face.

“Ahhh… Haaah… Yeahh…"

I could actually feel it, as more of the fluid pulsed, through his dick, making its way upwards and outwards. I turned my eyes upward, and saw that smug grin take on an inflection of contentment as he was clearly hit by the pleasure of his orgasm. Unfortunately, that didn't seem to take away from his dominating attitude in the slightest.

Releasing me from his grip, he took hold of the base of his cannon, and aimed it towards the center of my face, before continuing to let loose his ample load.

“AH—AAACK! Z-ZYDE!"

“Heh… sorry, you just -ngh- look so good wearing a mask, I can't resist giving you one sometimes…"

Another heavy blast of Char-cum forced me to close my eyes and turn my face slightly, not that it deterred Zyde… It was a good 20 seconds before the searing splashes against my face ceased. Although, even after the spurts relented, it wasn't until I heard Zyde's heavy breathing before I felt comfortable cracking my eyes back open.

“J-Jeez, Zyde… did you have to…"

“Don't –pant pant- pretend that you didn't love that -pant- lava bath, Randal…"

I'd be lying if I said that I understood how it worked, but fire-type fluids, much like the flame on Zyde's tail, doesn't seem to burn or scald anything, unless he wants it to, despite the stuff supposedly being upwards of boiling temperatures. A fact that I was quite thankful for, since I was basically plastered with the stuff.

Zyde finally climbed off of me, a very satisfied look on his face as he stretched his legs a bit, “Ahh… That was good, right Randal?"

I cleared my face as much as I could before leaning forward, “Alright, Zyde… We've gotta stop, I mean…"

Zyde nodded, a genuine expression of agreement on his face. He definitely understood the situation, and he's not unreasonable, “Yeah, I know… better safe than sorry, it just makes more sense to let you get back to normal."

With that, we agreed that that was going to be it. We were already going to have to start over in two weeks, thus wasting a total of three weeks, we didn't need to take any chances.

That was the plan anyway… unfortunately it didn't even last 24 hours.

It wasn't Zyde's fault, nor was it mine, it was just a strange situation between us. I don't think either of us was even aware of how much we had gotten used to the daily romps, so it seemed that the more we tried to not think about it, the worse it got.

Three days later, and we had already gone at it at least once per each day. By the fourth day, we were screwing around just as much as before, maybe even a bit more. And on top of that, we were going at it in all sorts of new ways. That oral on the first day led to us “69"ing, rimming, role playing, etc… it was almost as if we were actually in a real relationship. We were trying new things as much as we could, and even I couldn't deny that I was very much into it, maybe even more than Zyde was.

By the sixth day, I actually woke up with my arms and legs lashed to the bed, with Zyde looming over me, smiling mischievously. It's not hard to imagine what that led to… I attempted to give him a taste of his own medicine on the following day, but it turns out that when the victim has sharp claws and fire at his disposal, keeping him bonded up is not very easy.

I should have put a stop to it, I knew that the most important thing was to let the size change wear off, but I kept rationalizing it by reminding myself how much time I had before the appointment. It was only supposed to take around 24 hours for the shrinking thing to wear off, assuming my body had enough time to recover, but by the seventh day, Zyde and I still hadn't let that happen…

“Zyde, are you back yet?"

I called out into the apartment to see if he was present. In the current state that I was in, I obviously couldn't really leave the house, which left the task of getting food and groceries to the Charmeleon. He had gone out about 20 minutes ago, so I didn't really expect him to be back yet, still I checked. I was coming out of the shower, and running into Zyde without any clothes on was pretty much an invitation for him to pretty much do whatever he wanted to me.

I walked towards the bedroom, roughly drying my head with my towel as I went. I actually got all the way into the room before pulling the towel away from my face, and getting a view of what was waiting for me in the room.

“Whoa, you weren't kidding! He IS small!"

“AAACK!"

At hearing the voice that wasn't Zyde's, I nearly fell backwards in shock. Instinctively, my hands quickly snapped the towel down to my waist, doing as much as possible to conceal my lower half.

“What happened? You guys run into an Abra or something? I heard a rumor that they could do stuff like this…"

The voice wasn't unfamiliar, just unexpected, upon finally gaining my composure, I looked up to see a Grovyle standing there with Zyde.

“Tate…?" I looked over to my Charmeleon, “Zyde? You brought Tate here? Are you crazy?!?"

Tate was a Grovyle that lived with his trainer in the building, in an apartment a few floors above us. I didn't really know his trainer too well, but Tate and Zyde would hang out sometimes, though it had been over a month since I had last seen him.

Zyde just chuckled at my panic, “Well, it wasn't a plan or anything, Randal. I was on the way out to the store, but then I ran into Tate, and, well… remember that thing we were talking about yesterday?"

I took a second to think, but honestly I wasn't sure what he was referring to. I assumed it had something do to why Tate was here, but nothing was coming to mind, at least until I took another glance at Zyde's face, and saw the mischievous grin that I knew so well…

“Wait… you're not serious…"

I realized what he was talking about, and it hit me like a brick to the face, I wasn't sure how to even respond, “Zyde, that… that was just… y'know… talk."

“Yeah, I know, but still…" He strode towards me, stepping around behind me, and kneeling down to bring his head close to my level, “Aren't you curious though…? I know I am… and Tate is too…"

Before I could answer, I felt his precariously hot breath against the back of my neck, and his light touch on my sides.

“Ah… Zyde, stop…"

“Do you really want me to stop…?"

“-ngh- N-Not… not really…"

His tongue brushed against my ear, and I trembled with need, completely forgetting about the other pokémon that was in the room with us.

“Wow, you really have him trained! You gotta give me the secret! I want the tiny trainer set up too!" I could hear the excitement and amazement in Tate's voice as he walked over.

Being similar in height to Zyde, Tate's abdomen was right around my eye-level. So, I noticed right away as the Grovyle's tapered tip started making its way out into the open from Tate's slit. With Zyde licking and nibbling at my ear and neck, it was becoming increasingly difficult for me to resist diving in.

I brought a hand up to start massaging at the opening, trying to coax more of the organ out, but it seemed as though Zyde had other ideas. He pulled away from me, instead placing a claw on the back of my head, and pressing me forward, thus urging me to start the inevitable oral treatment.

“Come on, Tate! You've been saying for a while now how much you'd love to find a human that you could put in their place, take some control, grass boy."

It seemed that the Grovyle took exception to Zyde's comment. Almost immediately, Zyde's claw on my head was replaced by the slightly firmer grasp that apparently belonged to Tate.

“I know how to dominate a bitch, Zyde." With a light pelvic thrust and a bit of a tug of my head forward, I suddenly found his stiffening need pressed against my closed lips, “Mouth open, little Randal…"

I didn't resist as much as I probably should have, the tip slipped into my mouth right away, and Tate was able to slide deeper in without much trouble.

“Ohh, nice… You can take me deeper than I expected…"

Honestly, it even surprised me that I was able to take Tate's length as deep as I already had. Zyde and I had attempted oral a few more times during the week, and apparently, the practice had paid off. Tate was already at least five inches long, and still extending, his tip was already nudging its way into my throat, and I wasn't finding it too much trouble yet.

“Heh… You seem to be handling him pretty well, Randal." Zyde started walking around me, and it was immediately clear what he was expecting, as the familiar Charmeleon erection entered my field-of-view, “Maybe I should give you a bit more of a challenge." Zyde stepped up just as close as Tate was, intentionally moving in and letting his length rub against my cheek.

I hadn't even realized that, at some point, I had completely dropped the towel that I had been using to at least somewhat cover my nudity. I brought up the free hand to Zyde's need, and did my best to wrap my fingers around the thick pole, before I could begin working on him however, my head was pulled away, off of the Grovyle dick that I had been servicing.

“Oh, no no no… Zyde deserves more than your hands…" Turning my head slightly, I found Zyde's dick, much like Tate's, fully erect, and pulsing with need. “Better get that mouth in motion!"

I looked up and down the Charmeleon cock. I'd seen it so many times since this whole ordeal started, but laying eyes upon it still instilled a degree of awe in me, and now with Tate pulled free from my mouth, I actually could get a look at his size as well. The Grovyle was a bit under eight inches long, which put him at about the same size as Zyde, and maybe slightly thicker. If I were in a different state-of-mind, I probably would have been a little self-conscious upon coming across yet another four-foot-tall pokémon that was better endowed than I was, but currently the only thing that I could think about how I was going to be able to handle not one, but TWO cocks that were each bigger than the current size of my forearm.

I glanced up at the two pokémon, both of which seemed somehow even more imposing than usual, and upon seeing the dominant expressions on each of their faces, I got my tongue going right away.

I lapped over Zyde's erection first, slurping upwards until reaching the tip, and engulfing it as best I could, and then quickly switching over to my left to do the same to Tate's length.

“Fuuuuuuck… Zyde, I don't know what you did to get him like this, but you are keeping him like this, right? Man… expect me visiting like EVERY DAY from now on!"

Another audible slurp, and I moved back to Zyde, continuing my alternation between the two pokémon. I started at the base, licked and lapped my way up the entire length, until I was able to suck gingerly at the tip, and then alternated back to restart the process.

“Nnnghh… Randal, you are on point today…"

I actually felt a little bit of pride at hearing the compliment as I moved back to the fire-type organ, and then a bit more pride upon feeling the overly slick pre-fluid that had started to leak and coat the rigid flesh.

Zyde was quickly nearing his climax, and understandably beginning to get restless as I worked on his shaft. Yet it still came as somewhat of a surprise when his claw against the side of my head held me in place.

“Sorry, -ngh- Randal, I'll be taking control for a sec…"

Immediately, I found myself on the receiving end of a rather rough face-fucking.

Since the first time that we tried, I had gotten considerably better at accepting Zyde down my throat without choking, but I wasn't prepared for what Zyde had in mind. He speared in rather roughly, getting more than half of his length into me right away, and then began pounding in, knowing that my body would adjust to it.

“Holy shit, Zyde… Can he take that? You're like a jackhammering into him." Tate was unaware of the DI-770 serum, or the effects that it was having on my body, so what it looked like to him, was Zyde repeatedly forcing his dick down my throat much further than it should have been able to go. He simply watched in amazement as I handled it without much issue.

“Yeah, he can take it…" He answered without slowing down, or even turning his attention away from me, “I know exactly how rough I can be with him, and I know for a fact that he can take a LOT more than this… Right, Randal?"

I obviously couldn't respond, but I doubt he was expecting me to anyway, he was more just enjoying the scenario, and I'd be lying if I said I wasn't, as well. Zyde in such a dominating position over me was beginning to feel commonplace, and while I wasn't sure how I felt about such a dramatic role shift between us, Zyde staring down at me with such control felt oddly right.

“Well then, if you're going to clog up that end, I'll take this side…"

I had been forced to neglect Tate's cock, upon Zyde taking control over my oral efforts, and with Zyde's movements dramatically increasing in fury, I hadn't even noticed the Grovyle stepping around to my backside.

“I hope this bitch's ass can take a pounding as well as his throat can, otherwise little Randal here is about to be snapped in half, hehe…"

Tate gripped my bottom half, and the two pokémon maneuvered me carefully down to an all-fours position. Zyde was still in front of me, powerfully jabbing his length down my throat, and now Tate was behind me, preparing himself to impale me from behind. I felt a couple nudges and prods at my passage, but it was as if he somehow knew that I didn't need much prep, either that, or he just didn't care…

“Fuck yeah… Gonna properly destroy this ass…" Grovyle claws spread my cheeks apart, and his thickness was right-away guided into my passage.

“MMPHHHH!" My yelp was muffled by the giant mass blocking my mouth, but the sentiment of a-giant-pole-the-size-of-my-arm-just-got-stuffed-up-my-ass seems to be a concept that transcends language.

“SHIT! You've fucked him before right?! There's no way he should be this tight!"

“Staying tight is -ngh- a special t-talent of -ngh- his…" As Zyde got closer and closer to his climax, he couldn't even get through an entire sentence without letting a couple pleasured grunts slip out.

Tate hilted in me right off-the-bat, and it immediately confirmed my suspicions that Tate was indeed thicker than Zyde, or at last it felt that way.

Not that it mattered either way… A moment later Tate's cock nailed a spot inside me that basically turned me into a quivering moaning mass.

“Mmmm… Mmmnn…" I moaned around Zyde's dick, as much as I wanted to continue on with my oral work, I was close to completely overcome with pleasure, I was surprised that I could even hold myself upright. My complete lack of response didn't seem to hinder Zyde at all though, if anything, his thrusts got even stronger as he neared climax.

“Y—eaaah… Just imagine, -ngh- Randal… After I evolve, I'll be twice the size I am now… I'll be able t-to -ngh- spear all the way through you…"

Zyde spoke, but I was too far gone to even comprehend, receiving far too much pleasure from both ends. Even with a complete lack of input on my end, the two pokémon spit-roasted me wildly, with as big as they were relative to my current size, I almost expected them to meet in the middle… hell, with what the experiment was doing to my body, it may have even been possible.

“Ggghhh—Ahhh…" With the pleasured exhale, Zyde gave one last strong thrust, and I felt the fiery liquid spurt into me, at least for a moment. After only a single, yet rather filling warm jet, the slick flesh quickly slid back out past my lips, and I found my face unexpectedly plastered with white.

“AH! G—AAAACK!! ZYDE!"

Another heavy rope of fire-type cream splattered on me, Zyde clearly making sure that I was thoroughly marked, “Don't –huff- want to fill you up from this end, Randal…"

“I don't blame you, this side is fucking HEAVEN!" Tate was still slamming into me with every bit of force he could muster, clearly enjoying the unrestrained fucking he was giving me.

“Tate, do me a favor and lift him up."

Tate slowed down a bit, but didn't stop, a little confused at the request, “Huh…? Lift him?"

“Yeah, hold him up, his back against your chest. Don't worry, he's pretty light, heh…"

Tate shoved himself fully into me, and held for a moment, before reaching down to grab my legs. Without disturbing the solid pole that still occupied my passage, he slowly stood upright, taking me with him.

“ACK! Zyde?! Tate?! What are you two planning to—"

I stopped before I asked the question, the answer suddenly becoming very clear to me. Zyde stood up as well, despite having just climaxed, his pole still stood at full-mast, and that mischievous smile of his curled onto his face as he looked me over, “Z-Zyde… you can be planning to try…"

“You know Randal…" He cut me off, “I just love seeing you like this, tiny, naked, my cum dripping down your face, and a cock bulging through your gut… I just don't think I can stop myself…"

He stepped towards me, and I actually felt myself shiver just from the anticipation of what I knew was coming. Before I knew it, his claw wrapped around me, pinning my arms to my sides, he was directly in front of me, and the familiar warm touch of his cock brushed up against my already full entrance.

“Dude, he's already as tight as a condom around me! No way he can take both of us at once…"

Zyde didn't pull his stare away from my eyes as he responded, “Well, why don't we let him decide that… What do say, Randal? Gonna be a good pet for your master, and see what you can handle…?"

I swallowed hard, going over it in my mind, despite knowing that there was no real decision to be made. Both Zyde and I knew what my answer was going to be before the question was even posed.

“Please… Do it, Zyde."

Tate's length already had me feeling like I couldn't possibly handle anything more, but that didn't mean that I wasn't willing to try. Zyde grabbed ahold of his spire, and angled it carefully, nudging in a bit, and getting me to stretch even more as he pressed in.

“SHIT! Is he actually taking it?!?!"

With my back against Tate's chest, I couldn't see his face, but just from hearing his reaction, it was pretty clear that he was absolutely floored at what was going on. Another step forward, and Zyde reduced the gap between us to nothing. I was literally sandwiched between the two pokémon, and being simultaneously invaded by both of their lengths, either one of which should have been way too big for my diminished body.

“You're gonna get juuuust what you want, Randal!" the claws gripping my arms tensed and it felt like time slowed down as he thrust upward, burying himself almost fully into me.

“Oh man! Holy fuck! I didn't know humans were this stretchy!" With both of the pokémon's impressive endowments in me, my gut looked like a monster was about to burst forth from it. Two very distinct protrusions bulged my stomach out unnaturally, even enough to cause Zyde to pause and make sure that I was okay. Of course upon seeing my tongue lolling out of my mouth euphorically, he didn't waste time getting back to work.

They started up unceremoniously, double-penetrating me, and immediately the bliss overcame me.

“NGGGGGHHHH—AHHHHH!" I orgasmed within the first minute of the tandem assault starting, the intensity was too much. Even with everything Zyde and I had done over the past week, this was something that I didn't… couldn't expect to ever have happen. With my front mashed against Zyde's, the strings of my release were quickly lost in between our bodies, and left to ooze across our stomachs as my climax subsided.

“Heh… felt that, Randal."

“Fuck, I did too… I've been in Vulpix that weren't as tight as this!"

Zyde and Tate responded respectively, both of them reacting to the sudden spasming of my muscles around their sensitive organs. I could tell that it was almost more than Tate could handle.

“Oh, f-fuck… I'm about to pop…" The Grovyle behind me spoke lowly and straight into my ear, “Hope you're ready for a fill up, Little Randal…"

Tate's movements were already becoming increasingly erratic; his grip on my legs strengthened, and he held himself in as deep as he could. I felt his pulse spike, and right on cue, the thick fluid began to batter my insides.

“Ahh—hhhhh… T-Tate, it's—MMPHH!"

My words were cut off, I found my lips obstructed. I had squeezed my eyes shut upon feeling the satisfying filling sensation from Tate's orgasm, but they shot open upon my mouth being blocked, giving me a close-up view of Zyde's face.

Is… Zyde kissing me…?

It was probably the least expected thing that he could have done, but oddly… it felt absolutely perfect. His long tongue taking control of the inside of my mouth, and his fiery breath mixing with mine only complemented the satisfaction of being expanded beyond my limits.

It seemed that the action affected Zyde just as much as it did me. Mere moments into our lustful embrace, I began to feel the warm throbbing sensation in my backside that I had grown so accustomed to. Despite just having reached orgasm minutes ago, Zyde was at his peak again, filling me up, just as he said he would.

My gut was growing, expanding… I couldn't look to see it, but I could feel the pressure growing, and pressing firmer against Zyde's front, still I continued the lip-lock, unwilling to let it end.

Eventually, we all slumped down, not a bit of energy left between the three of us. The kiss between Zyde and I had ended at some point, but he continued to hold me tight against his body, even as he bordered on falling asleep. I could already hear the serene breathing from behind me indicating that the Grovyle had already drifted from consciousness so I didn't resist as the overwhelming fatigue became too much for my body to handle.

~~~~~~

I laid on the bed, face up, completely exhausted, to the point where I didn't even think I could move. Zyde ran a claw lightly over my enlarged gut, smiling, no doubt at the state that he and Tate had left me in.

“You get enough, Randal?"

I rolled my eyes, “Hey, you're the one that decided to throw a surprise DP at me when you were supposed to be going to the store."

A low chuckle from the Charmeleon, “Hehe… Yeah, well… I had a feeling that you'd enjoy it. Besides, I figured that it'd be a nice last hurrah, so that you'll actually have time to grow back."

That bit surprised me, I hadn't even thought about it, but it definitely made sense, “Ah, yeah… Yeah, I guess giving extra time for me to change back won't hurt, we can't risk missing another appointment." I ran my hand over my gut, “Plus, getting this much out of me might take a little while."

“ZYDE!" The voice came from the other room, apparently where Tate was fixing himself up, “Come on! Tell me what got him that small! I need to do the same thing to my trainer! I promise I'll give you a turn with him!"

Zyde turned his attention towards the door, “Ugh, not happening, Tate…" The fire-type slowly made his way out of the room, and I simply did my best to relax…

“Much better than our old arrangement…"

~~~~~~

“Stop freaking out, Zyde…"

“What?!? Are you kidding?!? How are you even so calm?!?"

Zyde paced back-and-forth through the living room, the anxiety was basically radiating off of him as he very openly worried about the developing situation. It had been over four days since our farewell performance with Tate, and despite making sure that all of Zyde's lasting-heat fluids were out of me, I hadn't changed in size at all.

“We have done anything lately, and you still haven't grown back to your normal size!"

Zyde's concern had gradually turned into unease, and then eventually to panic, which is where he was at now. It was all I could do to keep him somewhat calm, but it seemed that he was quickly getting past that point.

“There's still time! I mean, I've been small for a while now, so it makes sense that it might take a little longer for me to change back, don't be so wor—"

“Are you kidding, Randal?!?! FOUR FUCKING DAYS! And if anything you're even smaller than you were before! Something is wrong!"

Zyde had been concerned from the start, but over the past few days, Zyde had gone from concern, to unease, to panic, which is the state that he was currently in. I was doing my best to be the 'calm one' between us, but it's not like anything he was saying was false. I had made sure that all of the Charmeleon seed was out of my system, and we had refrained from doing anything since the whole thing with Tate, but still, I hadn't grown in the slightest.

I had been keeping it together pretty well, but Zyde was a mess, likely feeling a bit responsible for the whole thing. Keeping him somewhat calm was the best I could do, but I had to admit that something was definitely wrong.

“Yeah, I know… something is wrong, but Zyde, that doesn't mean—"

“Great! You agree then!" He cut me off as soon as he heard what he wanted to hear and darted back towards the bedroom. Right away, I could hear rustling that sounded like he was digging through the closet, and my suspicions were confirmed when he came back into the room a minute later, carrying a backpack that was being kept there.

“Zyde, what are you doing…?"

He plopped the bag onto the ground, “We're going to see the doctor!"

Without another word of explanation, he grabbed me by the sides, lifted me up, and placed me in the backpack.

“ACK! Z-ZYDE!?! WHAT ARE YOU—"

He moved quickly enough, so that I didn't have a chance to really react. Gripping me by the head, he shoved me down into a crouching position, low enough so that he could close the bag.

** zzzzzzzzip **

“ZYDE! ARE YOU CRAZY! OPEN THE BACKPACK!"

“Just stay down, and try to stay quiet!"

With that last command, the backpack was hefted up, presumably onto Zyde's back, and I could feel us moving.

I struggled for a bit, but before long I simply conceded to wait it out. The backpack was actually a pretty sturdy fabric, and it likely would have taken a decent amount of effort to bust through it. Besides, a two-foot-tall human fighting his way out of a backpack in the middle of a public place likely would have drawn a bit more attention than I would have liked.

Thankfully, it wasn't a long trip. Even with Zyde toting me around on his back, it didn't take more than 20 or 25 minutes for us to get to the experimentation center. Zyde's movements finally came to a stop, and I could hear Zyde's explaining something to somebody, and then around 30 seconds after that, the backpack finally opened back up.

** zzzzzzzzip **

“W-WHAT?! IS TH-THAT RANDAL?!?"

Before my eyes adjusted back to the light, I heard the voice, Dr. Costas' voice, and by the sound of it, he was absolutely dumbfounded by the sight before him.

“H-How long have you been like this?!?"

“Err… Almost three weeks now… It happened right after the injection…"

His eyes shot open as wide as dinner plates, “WHAT?!? WHY DIDN'T YOU TELL ME?!?"

“Well… you did say that shrinking was a possible side-effect, so we just kind of left it alone, hoping it would wear off like you said."

“I-I meant shrinking as in a few inches! Th-This is… I don't even KNOW what this is!" He started pacing back-and-forth, it was pretty clear that this was something that he had not ever encountered, which didn't ease my mind at all, “Something… something had to have happened to trigger this… What exactly happened after the injection, you had to have eaten something, taken some medication, done some activity… I need to know."

I glanced over to see a blush on Zyde, even visible on his already red skin. I took a breath and turned back to Dr. Costas… “Well… heh, remember that 'hot tea' that Zyde mentioned that I drank by accident…?"

~~~~~~

It was a good three hours later when I finally finished up. After a lengthy, and thoroughly embarrassing explanation of the truth about what happened to make me shrink as much as I did, Dr. Costas put me through over two hours' worth of tests to find out what was wrong.

“Randal!" Zyde called out as soon as I stepped out into the waiting room. The fire-type pokémon wasn't present for the majority of the testing, so he knew even less about what was going on than I did, “So… What's the deal? Can they fix you? Change you back to normal?"

I shrugged, “They haven't really told me anything yet. Dr. Costas should be out in a minute with the results… All they've said so far is that I'm healthy, and it hasn't had any damaging effects on my body."

Zyde sighed, “Well, that's something… I guess."

“I'm still, y'know… stretchy, too… That's another effect that was not supposed to be nearly as drastic as what I've experienced."

“So, basically, they don't really know what the problem is…?"

“Quite to the contrary, actually." Dr. Costas came into the room, immediately responding to Zyde, “It seems we have isolated the problem. It turns out that the experimental compound is more temperature-dependent than we had initially expected. We took into account the possibility of standard things that a person might eat or drink, for example, soup or coffee… none of which generally reach temperatures of even 200 degrees. The -ahem- fluids of a Charmeleon however, often reach temperatures over 1000 degrees…"

Doctor Costas paused and opened up a folder, revealing to Zyde and I an image of what apparently was the chemical breakdown of the serum in my system.

“Not only did the extremely high levels of heat cause your body size to diminish much more drastically than predicted, it also caused the compound in your system to break down and bond much, much quicker, which is why you haven't grown back to normal, yet still have the enhanced elasticity attributes."

Zyde shook his head, “Okay, that's all nice, but, can you get him back to normal?"

The doctor scratched the back of his head, “Well… eventually, it's likely… but at the moment… You have to understand, this is completely unimagined territory. We've never seen anything like this. We, of course, will make it a top priority to get him back to normal, but we'd also prefer it if he'd agree to carry on with the trials."

That bit got Zyde's attention, “Wait, so you want to experiment on him even more?!?"

“Well, it's not that we want to experiment on him…" Dr. Costas turned to me, “It's more that we believe that the muscle growth trials that we started might help to re-activate the DI-770 compound that's already bonded with your system."

I nodded, not really understanding a lot of it, but I didn't see a downside, “Yeah, we can keep on with the muscle growth stuff, no problem."

“WHAT?!? RANDAL! YOU… ARE YOU INSANE?!? AAAAGHHH!"

Zyde stomped off in the opposite direction, clearly unamused with my choice there, I could even see his tail flame flare up, just out of sheer emotion.

“Your cooperation is appreciated, Randal." Dr. Costas continued on, trying to not pay attention to Zyde's very clear objection to the whole situation, “As I said before, we did isolate the compound that caused the drastic size changing, so you even after the trial begins, you won't have to worry about shrinking any further, regardless of any… err… activities you decide to take part in…"

After he spoke the words, an awkward silence filled the room, and a bit of a blush crept onto my face. It was pretty obvious what he was referring to, and it was humiliating enough detailing it to him earlier, I didn't want to run the risk of it getting brought up again.

“Y-Yeah… Okay then! We'll just be taking off then… Zyde, let's go…" Quickly, we moved towards the door, not even stopping to turn when the Doctor called out.

“Oh, okay… Yes, I'll give you a call when we're prepared to proceed. See you again, Randal."

~~~~~~

The trip home was silent, though I guess that was to be expected, since I was stuffed in a bag the entire time. Still, it felt like it took longer to get back home than it did to get to the facility in the first place, almost as if Zyde was moving slower on the way back.

Finally, I felt the bag I was in drop to the ground, and the zipper cracked open.

“Ugh… Now I see why you hate being in poké balls so much…" I pulled open the zipper the rest of the way, and climbed out, to see a sullen looking Zyde sitting on the couch.

“Uh, Zyde…?" I started walking towards him, having a pretty good idea what he was upset about, “Look, I know you're not a fan of me going ahead with the procedure, but—"

“Ughhhh, it's not that!" He hopped off of the couch, “It's… -sigh- …my fault that this happened… It's my fault that you're stuck like this…"

I admit that I was a bit shocked at seeing Zyde as overcome with guilt as he was, “Zyde… it's not…"

“If it wasn't for me… not being able to hold back… none of this would have happened. You wouldn't be stuck like this."

I walked over to him, standing right in front of him, making sure that I had his attention, “Zyde, the Doctor said this all happened the very first time we did it, and if you remember… I'm the one that offered that night."

He perked up slightly, making eye-contact with me, “Yeah, but still…"

I continued on, not giving him a chance to negatively spin the fact, “Neither of us could have possibly known about this… small side-effect."

With a sigh, he nodded, “I guess so, I just wish it… y'know, could have turned out better."

I smiled at him, “Honestly, I'm kinda glad it turned out like this… You think I haven't enjoyed it? Hell, I'm not even sure that I'll be able to go back from our new relationship."

“Relationship, Randal…?"

I flinched a bit upon realizing my choice of words, “Yeah, well… are you saying that you don't feel the same way…? I felt myself blush a little at the spontaneous confession, it did however seem to pick Zyde up a bit, as evidenced by the slight smile beginning to form on his face.

“Maybe… I guess, I was a little tender with you…"

We both looked away from each other. Like I'm sure he also felt, I was a little embarrassed at the admissions of our feelings, but still, I couldn't help but feel a wave of contentment upon seeing Zyde smiling again…

…At least until I saw that smug look on his face again…

“So… it turns out that you like being the little guy in the relationship? Heh, wouldn't have expected that, Randal."

“Tch…" I rolled my eyes, and turned, starting to walk towards the bedroom, “Not what I said, Zyde…"

“Think about it, Randal…" He followed behind me closely, “The doctor said that the shrinking was based on temperature, right?"

“Yeah, so?"

“So… What if I were to evolve?" He slid his claws down my arms from behind me, “Not only would I be bigger, but I'd be hotter too… You'd probably get small enough to fit in the palm of my hand. I'd probably be able to use you as an actual condom…"

“You heard Doctor Costas, I'm not going to shrink any further."

“I know, but… After you get the new experimental stuff, who knows what will happen?"

I turned and glanced at the Charmeleon, smiling slightly, “Well, I'm not against finding out."

“Heh… well then…" With his claws already on my sides, he grabbed me, and decided to pull me off the ground. Before I knew it, I was slung over his shoulder as he continued towards the bedroom, “Until then, we should stay in-practice, right?"

It wasn't even a moment later, when we passed through the threshold of the door, and Zyde slammed it shut behind us.

“H-HEY WAIT!!! ZYDE!?!!"

** SLAM **