The Mysterious Message - Lucario TF/Muscle Growth

Story by WyraachUr on SoFurry

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It was the end of a long, quiet day as I sat back on my bed with my laptop, just checking my messages as well as looking at some artwork - after a long day, I needed some nice time to myself. After all, the various pictures that I have come across while browsing the Net did nothing to help decrease my horniness, which was already high to begin with given that I had not jacked off in a while.

"Mmm, let's see what there is that can help me," I said, unzipping my jeans. My cock, which was beginning to lengthen to its full length, formed a tent in my underwear. I smirked, letting it poke through one of the openings as I found some transformation and muscle art to browse through, wanting to find a certain something that would satiate my craving. Opening several of my favourites in separate tabs, I began to prod the tip of my cock, teasing it as it continued to harden. I shivered slightly as I rubbed the head gently, trying to start slow before things escalated.

"Mmm...that's good..." I moaned a little, trying to look for a particular image.

It was then that I noticed a new private message had made its way into my inbox. Wondering who it could have been, I clicked on it, quite forgetting that I was in the middle of pleasuring myself. It was untitled, and to my surprise, I saw that the sender's username was blank. Wondering if the site was glitching, I opened the message.

"Wonder what this is..." I said as I continued rubbing, waiting as it loaded. Inside was a link, with nothing else, not even a greeting or explanation. Now, normally, I would have been suspicious, but there was something strange about it that drew me in. Not really aware of what I was doing, I clicked, and then there was a bright flash of blue. I shielded my eyes as the light increased in intensity, wondering what on earth could be happening.

A moment later, the light vanished, and I saw that the browser had been redirected to what seemed like an archive of Lucario porn. "Oh wow" I said with a big grin, looking at the collection of images. "Now this looks like it should provide some entertainment."

It was strange; here I thought I had scoured the web for every Lucario image there was, and yet this archive seemed to contain a whole bunch of images which I had never seen before. These pictures were mostly pertaining to my fetishes too... Hard to believe I never stumbled upon it in the past.

I still did not know who the note was from, but whoever it was, I am thankful.

I closed the tabs I opened earlier which contained the older pictures, and instead clicked on some of the new images from the archive. The sight of these juicy images did nothing to contain my increasing lust, and I decided it was time to get serious. I stripped my underwear and tossed it aside, revealing my cock at its fullest. The tip was already moist with pre; I flexed my pelvic muscles and watched as the precum was expelled out, trailing down onto the sheets on my bed.

I smirked as I wrapped a hand along my hot, slimy length, starting to pump it gently as I began browsing through the gallery, opening up every picture which I found to be exceptionally tantalizing. I was beginning to feel warm all over, which would be strange given the temperature that night. However, I just attributed it to my lust and kept going.

Stroking the entire length of my cock, I began to picture myself as those hot Lucarios in the computer. There was really no other way to describe them - they were sexy beasts. Well-toned muscles decorated their bodies, bulging out through their sleek fur. Some of them were posing with their massive lengths displayed proudly, while others depicted them showing off in feats of strength. Then there were those drawn in the height of their orgasm. It was odd, but I felt a real connection with all of the Lucarios, as though I am one with them. That feeling alone made my cock twitch as it sent another bead of precum trailing down.

"Aaahhh yeah..." I moaned, pumping harder and harder, panting a little as I took it all in. I relished in them all: the Lucarios growing in size and muscle, the Lucarios in various sexual acts... all these images swam in my head as I continued to jack off.

The heat was still increasing, and soon I was starting to feel really hot. Just as I pondered if I was coming down with a fever, a strange, prickly feeling overcame every inch of my body. With my free hand, I scratched my face, but I did a double-take when I brought my palm to eye-level. My fingernails were elongating, and black fur was starting to poke through the skin. That kept my mind off from my masturbation session for a while as I brought my other hand up only to find that it was undergoing the change as well.

"Aahh! What the hell?" I gasped a little bit as I looked at my hands. I was stunned to say the least, but no matter how weird it was, my throbbing cock demanded my attention, and I wrapped a furry hand around it once more.

Pretty soon, it became clear that my hands were not the only ones undergoing the transformation. The fur was spreading throughout my entire being as I continued to pump my penis. My cock, too, was extending further, gaining several more inches as the change continued. As I moaned in ecstasy, a different sort of change was brought to my attention - my chest had swollen rapidly, the muscles there growing and tightening to form a set of impressive pectorals which bulged through the fabric of my shirt. It continued to pulse in power, growing and growing, until it ripped right through the fabric.

"Ooohhhh.... oohh yess..... ooohh..." I groaned, growling a little as I felt my form literally swelling with power. The feeling of ripping through my shirt was intoxicating, and all it did was fuel my lust as I lay on my back, beating my cock against my expanding chest.

My jaw was slowly elongating into a muzzle, my teeth growing into a set of impressive fangs. The transformation gave me a tail too, thick and solid, hanging proudly from behind my rump. It wasn't until I noticed spikes protruding out of my hands and chest did I realize I was transforming into one of the creatures I had always longed to be: a Lucario. And a very hot one at that too, I thought as my biceps and triceps enlarged simultaneously, almost in tandem with each pump I gave my penis. Pretty soon, my arms were overloaded with power and strength, thick cords of muscle running down from my shoulders all the way to my forearms.

I was living my fantasy; I was essentially experiencing all of my fetishes at the same time. That feeling of power which was fuelling my growth had now reached my abdomen, causing the muscles there to contract and expand. Each time I inhaled, my abs thickened, and soon I was sporting an impressive eight-pack. The fur had covered my entire body by now, but it did nothing to conceal my massive muscles. I tensed my body as I ran my free hand down my torso, loving how the rock-solid muscles felt. I arched my back and moaned louder as my cock gave a sudden violent throb, completely coating my palm with pre.

By now, I was no longer paying attention to the pictures in the computer. I didn't need them now, not when I had something else to marvel and jerk off to: myself.

Four long tassels had sprouted at the back of my head, and these helped me to sense the aura in my surroundings. I was only interested in the aura emitting from me though, as it was burning a furious blue, increasing in intensity as my growth progressed.

An idea popping into my head, I directed a stream of aura towards my palm, and the feeling of my dick being cloaked with it while I was furiously jacking off brought me a lot closer to the edge. The precum was leaking out without stopping now, my balls churning repeatedly as it continued to send out more semen out my shaft.

"Aaaah... this is... this is great..." Having pleasured myself for quite a bit now, I knew I was really close to climaxing. There was a surge as blood rushed to my cock, a thick knot forming at its base. Though it was already thick and long, it expanded further beyond what I thought was physically possible, pulsating and throbbing hungrily as it craved for more.

While I continued to stroke it, I brought my other hand to the knot, giving it a tight squeeze. "Ohhh!" I yelled out, totally not expecting the huge surge of pleasure that erupted from my dick. My knot was extremely sensitive, and even just touching it was complete bliss.

At this point, my transformation to a Lucario had been completed. My body was now merely putting on the finishing touches by feeding each and every muscle whatever it was that made them grow, making them firmer and more toned than they already were - and that was saying something, as I was already jacked up to huge proportions.

My breathing accelerated as I increased my pace, furiously stroking with one hand while the other attended to my knot. My back was arching without me realizing it; I was completely lost in pleasure, about to erupt at any moment. It was the most intense masturbation session I ever had, though that was to no surprise, since it wasn't everyday I transformed into a hulking Lucario. I looked down at my body to survey the results of my change as I brought myself to the edge.

Without warning, a small spurt of ejaculate shot out from my tip, a precursor to my climax. It was then that it hit with full force. "Aah... AAAAAAAH!" My shaft locked and tensed as huge bursts of cum gushed out in rapid shots, each of them more intense than the previous. My pelvic muscles flexed on its own accord, aiding in shooting out my semen far and wide. Some of it even hit the ceiling, giving it a fresh coat of white paint.

With my left hand, I gripped the side of my bed tightly; my body was convulsing so much that it felt as though I would fling myself off the bed if I had not held on to something. It was insane, the way my massive shaft was jerking and lurching forward while launching out cum; it was as though it had a life of its own. I ran a claw down my length to add to the pleasure, my chest heaving heavily from the orgasm as I continued to pant.

That was the most spectacular orgasm of my life.

As the euphoric feeling dwindled, I stood up from my cum-stained bed, looking down. My cock was still erect, a thick line of cum dribbling down from its tip. I walked to the nearby mirror and examine myself, flexing in various poses and watching in awe as the muscles bunched together, firm and strong. Quite hard to believe, really, that my deepest fantasies had been realized just like that.

I turned to the laptop on my bed; it, too, had not been spared from my cumbath. The cause of my transformation was probably that anonymous message... I grinned to myself as I admired my body once more.

I owed them a favor, whoever it was.