After defeating another gym leader, Ren and his team appeared unstoppable. His Lucario was smashing entire squads on his own and his owner couldn’t be any prouder. He even developed some telepathy ability to communicate with Ren, although in single word answers.


But the Pokemon trainer knew that to even challenge the Elite Four, his team needed more training and more move sets. As he jotted down some notes within his book, his Lucario wouldn’t stop dry humping against the tree. 


“Lucario, time to go to bed already.” 


“...Horny… Need… Mate…” The words echoed within the trainer’s mind, causing him to pinch against his eyes. Staring up into the moon, he wondered when his cute little Riolu had become such a horny beast? Ren read about the heat cycle in Pokemon but he didn’t think it would affect Lucario this badly… 


“Yes, yes, we’ll find a mate tomorrow. Now back to your Pokeball.”


“...Ren… Lying…” 


Ren slapped against his forehead. Ugh. In the past this worked out just fine, enough to placate his urges but now Lucario had seen through his tricks. He scratched against his chin before searching for some answers on the web. 


As expected, most of them were advising their owners to neuter their pokemon. To keep them calm and more emotionally grounded they explained. Yet Ren adamantly didn’t want that. It wasn’t his fault that he was horny and cutting his masculinity off was too cruel for the trainer. 


The problem still remained with Lucario growling and banging against the tree. Damn, he was really horny today. To be fair, Ren and him basically grew up together like childhood friends and to see him suffering due to the heat was heart wrenching. 


Scrolling through his notes, he raised his eyebrow, “Lucario! I know what we’re going to do tomorrow.” 


“...Find Mate?...” 


“Errr no,” Ren’s ears drooped a little, “Say buddy, don’t you want to be stronger?” 


“...Yes…” 


“Tomorrow, we’re going to mega evolve you! Doesn’t that sound exciting?” 


Finally, the Pokemon stopped humping that tree as he excitedly nodded up and down. His tail wagging faster than a metronome at this rate, “...YES. Me Strong!” 


With a relieved smile, he retreated Lucario back into his ball. Well hopefully that would distract him from the heat. And so he started to scavenge out for a new mega stone for Lucario, one that would definitely buff up all his stats and can finally attempt to challenge the Elite Four. 


When the next day came, Ren woke up with Lucario licking all over his fur, “Morning Lucario,” He groaned, as the Pokemon bobbled up and down, “Seems like someone’s excited.” 


After a quick morning routine and packing up the bag and campsite materials, the duo began to make their way down to a nearby city. Turns out there wasn’t any available in stock online and so they had to go down to buy it.


Lucario was bubbling up and down; the only time he was this excited was when he was in battle, practically bursting with energy. On the other hand, Ren was still a little groggy, being woken up by Lucario. Last night, he had searched for way too long for that stone. 


Just as they passed by the stores, Ren heard a strange voice, whispering, “Would you like to know your fortune?” 


Turning to the side, he encountered a little hut between the alleyways. An illegal merchant setting up a store in between two buildings. The trainer shook his head, continuing to walk forward; the Pokemon had other plans, immediately pulling him along into this hut. 


“Lucario! Stop!” 


“...Stone! There!...” 


As they entered into the hut, Ren ducked down to be greeted with a hut in warm lights. Candles flickering within multiple spots while an old lady was in front of him with a crystal ball, “Why hello there. Would you like to have your fortunes read?” 


“Errr sorry, I’m not interested in this,” He pulled Lucario away, “We’re going now!” 


“Oh, it seems like this kid is interested in this stone,” She flashed out the mega stone from within her chest. Ren stood there, still thinking that this was a bad idea, “Say why don’t you pay me 5 bucks and I’ll read your fortune and toss this stone along with it?” 


Ren thought for it a little before sitting on one of the stools provided. Ah, what’s the worst that could happen? He passed her the five bucks, prompting her to swirl the crystal ball, peering into it deeply. The duo glanced at each other, not knowing what to say. 


“Oh fellow traveler, I see that you two have a deep strong bond with each other. And your dreams align with one another quite smoothly. But in order to achieve your dream,” She leaned closer to Ren. Goosebumps popping from his arm, “One of you must sacrifice something of great value. Then the journey would be smooth like the river,” She dropped the stone onto the table, “Else… you’ll have a thorny path ahead.” 


Ren nodded, “Errr cool? Alright thanks for the stone and I’ll see you again.” 


Lucario yipped as well once both of them began to leave. The trainer was still shaking his head. What the hell was all that about? Why was she being so creepy and weird? Inspecting the mega stone in his hand, he was certain that this was genuine. At only five bucks and that creepy reading, this was definitely a steal. 


“Alright Lucario, let’s get you to mega evolve today!” Lucario barked in excitement as well, giving his owner a little playful punch on the side. Yeah, he was definitely strong now. 


Both of them returned back to their original camp site, deep inside the forest. As Ren searched online on how to mega evolve him, Lucario was suddenly overwhelmed by lust. He started to cling against his owner's arm, growling and whimpering for attention, “Not now buddy, I’m still searching for how to evolve you.” 


With a little swirl of the stone, the Pokemon felt a whirl of energy concentrating around his torso. It radiated through his body, spreading through his limbs and into his paws. He felt this way a couple years back when Ren was evolving him into a Lucario, only this time more intense and strangely pleasurable. 


Lucario stood up now trying his best to slow down his breathing. His trainer reached out to him, “Lucario! Are you alright?” 


“...Stronger. Me now…” His eyes blinked, sweat dripping off of his neck. His tail still swished albeit slower than before like the pacing had been warped. 


“Alright buddy. If you need any help, I’m always there for you,” Ren patted him against the shoulders, looking him in the eye. It was the same as before where the small little Riolu was evolving into this state. Back then, he had a little rebellious streak so he would dart away from him; that thought only made Ren let out a smile. 


“...Yes…Ren…” 


It started with his legs. New spikes burst through his paws, making them much more of a threat. His black fur brightened up into a maroon red while the Pokemon tried to stabilize himself. His centre of gravity shifted towards the sides, now needing to lean against his taller trainer’s body. Ren was more than willing to, watching his face flushing red from embarrassment.  


After his trainer had petted him on the head, Lucario’s nose twitched. His senses now sharpened where even ordinary scents were thicker, especially Ren’s smell. A soft bitter yet savoury smell that he recognised as his best friend. But even that wasn’t enough. 


All of his primal instincts were overwhelming his mind. His thoughts shifted towards finding a mate, still as horny as he was the previous day. If only there was someone that could please him… 


His height shot up by an inch with maroon fur covering the outer parts of his paws. Another pair of sharp spikes protruded through his upper paws. Ren raised his eyebrow, now interested to see where this was going. Surely, this would be amazing for his ability in combat.  


Just out of view, Lucario’s sheath started to unravel itself. Pants escaped from his muzzle with a little whimper accompanying it. 


“Lucario, are you alright?” 


The Pokemon glanced away. One part ashamed while the other part trying to hold back his inner inhibitions. He shook his head around. His eyes now glowered crimson with the appendages at the back, sprouting into several strands of hair with the same maroon inking at the tail end. 


Ren gasped out loud - seeing the final form of his mega evolved Lucario. Taking out his phone, he snapped a picture of the beast, saving it as a key memory for their journey. This was simply amazing and why didn’t he try to do this earlier? 


Lucario was still panting however, his face completely red now. With a tap to his forehead, Ren tried to take his temperature. No fever there though. Was it just a side effect of mega evolutions? The wolf scratched against his chin, mumbling possible thoughts on it. Originally, he was going to move into training but if he wasn’t feeling well… guess he could cance-


Suddenly, his best friend started to wrestle with his pants, sniffing against the bulge, “What are you doing!” He screamed, trying to pull his pants up. The Pokemon whined and whimpered. Ah Arcesus, Ren just remembered how mega evolved Pokemon were more feral and could sometimes be more aggressive to get their needs. 


He just didn’t think Lucario would be affected as well… 


“I’m sorry, Lucario but we’re not doing this now. I’ll get you a mate soon enough, just wait for a bit longer.” 


Although the Pokemon didn’t understand every word that his best friend was saying, he could still read between the lines, inferring that he wasn’t going to have any fun soon. With a playful growl, the newly evolved Pokemon unbuttoned Ren’s pants and quickly stripped him. 


“Stop this!” He protested, only for Lucario to nuzzle up against his nut sack, sniffing it. A strange pleasure swept through the trainer. This was so wrong…but he was so horny for the last few weeks, maybe this might cure him. 


Lucario shifted tactics quickly. Using his paws, he grabbed against his cock and shoved it into his muzzle. Carefully, his tongue wrapped around it, creating a warm moist environment for the trainer’s cock to swell. The trainer himself was letting out soft groans, blushing brighter than before. 


Swirling around his cock, the pressure built up within his cock, while the trainer twitched within his paws. Although his size was almost thrice as large as Lucario’s, Ren himself wasn’t as domineering and was (in his own words) easily pleased. Just a simple wank was enough for him to cum his pants. 


As such, it didn’t take long for Ren to cum inside his muzzle. While the trainer had his short euphoric orgasm, Lucario gulped down his cum, feeling inherently unsatisfied. He instinctually felt something was wrong like this wasn’t how things should be. For someone so much bigger than him, Ren was just too kind and soft hearted to please the Pokemon.


No, the roles needed to be swapped. A small grin rose from Lucario. Yes, Ren would much rather like getting fucked instead. 


The wolf clapped his paws after recovering from the quick blow job, “Alright Lucario, you had your fun, let’s go back to training no-” With a simple kick to his calf, Ren quickly fell to the ground, peering up against Lucario’s swollen red boner, “Lucario, what are you doing?” 


Using his stronger paws, the Pokemon shoved his trainer’s muzzle down his cock. His thoughts echoing in his mind, “...More! More!...” 


The initial hesitation that the trainer had morphed into pleasure. Right, how could Lucario enjoy that simple blow job? He was so horny these past few weeks, that wouldn’t even please him in the slightest. His sweaty scents infiltrated Ren’s nostrils - an urge sprouting within Ren to please him more. The dominant alpha to his meeker self. 


Unknowingly, Lucario was emitting pheromones throughout the region, marking other Pokemons of his current territory. Ren himself didn’t know he was being enveloped by his musk, bobbling his head up and down to satisfy his partner. Damn, when did that little rascal grow up to have such a large cock? He just couldn’t seem to fit it within his muzzle fully. 


“Deeper!” Lucario growled, pressing his trainer deeper into his hard swollen boner. There, Ren’s tongue began to move, trying to navigate and please his friend. His thoughts somewhat distracted him. From asking how wrong this was to how clumsy he was acting, the wolf’s face blushed red. 


While both of their tails continued wagging, Lucario was fed up with it and forced his boner all the way into his friend’s mouth. Ren’s tail picked up the pace, feeling the tip of his boner touching against his throat. Fuck, why was this so hot? 


Peering up from the ground, he watched as his best friend flashed the brightest smile at him. He was never this happy before… The heat must have been crazy for him. Within the pleasure and the euphoria, Ren merely nodded along. Yeah, yeah, this was a one time thing from Lucario. Nothing more. Nothing less. 


Cum gushed through Lucario’s boner, rendering Ren to drink all of his cum deep into his throat. With a hefty gulp, Ren’s tail wagged even faster, tasting how bitter yet savoury his friend’s cum was. Instinctually, he wanted more but he pushed his urges to the side. No. No more of this. 


Lucario laid back against the grass. His boner was still rock hard with cum dripping off from the tip. Pants escaped from him. That was amazing. Who knew Ren could be such a… a… good partner? Yet, the Pokemon was still horny. How could months long of heat be resolved by just a blow job? No, this was the start and Ren was about to find out. 


“Alright, Lucario,” The trainer wiped away droplets of cum from the side, embarrassed at the act, “We’re going back to training now.” 


Lucario shook his head, growling at him. Ren stepped back, this was the first time he had seen Lucario this angry before, “...No! Ren… My…Mate!” Mate? Just because he did him a favour didn’t mean that he was his mate? 


The wolf scoffed before grabbing his pants, “Lucario, we still have the Elite Four to beat, we don’t have time for th-” A sudden weight pushed him to the ground, still revealing his naked lower body to the Pokemon, “Lucario! Stop!” 


“...Ren… bad! Me… strong…want…sex!” Lucario’s blue aura now enveloped the trainer’s ass, causing it to raise up. Now at this distance, Ren could tell how much larger his boner was compared to himself. 


He sniffed a little of the fumes, feeling his body relaxing against the Pokemon. Fuck… Maybe just one more pounding session was enough for Lucario. He had been dry humping a lot recently… “Fine… Just this one…” The trainer raised his tail to reveal his anus. 


“...Ren…listen… to… Alpha!” The Pokemon grabbed against his tail and licked against his paws. There, he slid a few of his fingers in there, loosening Ren’s anus up with the moisture. The trainer squirmed and twitched as his paws pads dug deeper into him. His very heart skipping a couple beats, realizing what this all meant. 


Once finished, Ren was now the one panting. Maybe it was his musk or maybe it was after drinking his cum, but his instincts were kicking in and all he wanted was that boner deep inside him, “Fuck me, Lucario!” Lucario smirked before thrusting his hips into Ren’s anus. The sheer shock was enough to paralyze Ren for a moment. Fuck, it was much tighter than he could ever expected and especially with how big it was, he didn’t even think it would fit initially. 


The pounding session continued. With Lucario pulling out to let Ren rest, he will quickly plunge his rod deep into him, making the wolf yelp and moan in glee. The Pokemon smirked. This was how it should be. Him on top, Ren on bottom. 


Yet…he wasn’t nearly as satisfied. Even with how Ren rocked his body, the Pokemon found his little cock annoying to see. Cum practically spilt everywhere without much effort, making the ground beneath all white and sticky. For Ren, dopamine basically flooded his veins. Thoughts were accompanied by how sexy this whole experience was, especially with his best friend. 


With his tongue let out, Ren was panting like a bitch in heat. He wouldn’t have thought in a million years this would happen but he was regretting not doing it earlier with Lucario. All those nights with Lucario whimpering in a corner, dry humping the tree, could be resolved with him getting fucked in the ass. Why didn’t he think of that sooner? 


Lucario raised his paws up. Now with the mega evolution, he could see auras much more clearly. Everything around him had a thin aura even Ren himself. But… he could feel the tug of aura with pinpoint accuracy. In the middle of his session, he could see a tiny aura enveloping his trainer’s cock. What if… 


He gave it a little tug, pulling the aura closer to him. Immediately, he widened his eyes, watching how his cock shrunk down by half an inch. 


“Lucario, what’s with the hold up?” Ren asked, feeling his cock had changed but in ways he couldn’t answer. 


“...Ren…Mate…?” 


“Oh shut it, this is so that you wouldn’t be distracted during battle.” 


“Ren Mate!!!” Lucario echoed, continuing the pounding session. He ramped up in speed, doing it faster and faster as he pulled his trainer’s aura away. From the three inches Ren had, it had dropped to two before dropping to one. His nut sacks as well which were big enough to cause a bulge were now shaped much much smaller and softer. Ren didn’t realize this however, still basking in the pleasure with Lucario’s pounds. 


He could feel another climax was coming, feeling how close he was before cumming once again. This time, the pressure was overwhelming his senses, enough to even make him light headed. Lucario’s scent was overpowering any thoughts. The worst part, he wanted more. More from his best friend. 


As he stole away Ren’s aura, his aura thickened around him, granting him a thicker musk that surrounded the regions. Muscles tightened and became denser with most of the excess aura flowing down to his nether regions. There, it began to grow, reaching even deeper inside of his trainer’s ass. 


Ren felt it, rubbing against his moist ridges. The deeper it went, the more sensitive it was, causing the trainer to start howling like an animal. Arcues, how big was his thing? He could’ve sworn it was smaller and less tight minutes ago, now it was hogging up all of his space. He glanced back only to see Lucario’s wide grin, his cock now barely longer than his pinkie finger. 


In fear, he asked, “Buddy…what’s… go…going…down there?” 


“Ren…Lucario…Mate!”  


He gulped, now feeling his ass becoming a little sore from all of the pounding. If it didn’t feel this good, he would’ve stopped him long ago. Fuck…did he like getting railed by his best friend? No, he shook the idea out of his mind. He was doing it to become champion. 


Each pounding continued the changes. More and more of his length whisked away into Lucario’s bigger muskier cock. So big and deep that the mere contact of his boner was enough to fill Ren up. Just needed him to cum deep into him, squirt every drop of his seed. 


Like in a trance, Ren wanted more and more. More of that action where he leaned backwards to help Lucario out. The mega evolved Pokemon couldn’t be happier, watching as his trainer bent over back for him. With both of them approaching their climax, Lucario slowed down the pace. A couple more times and he was going to bust. 


Ren glanced behind, seeing his cock actually shrinking before his eyes. Wait, wait, wait, what the hell was happening to him? He wasn’t just imagining it, his own sensitive cock was shrinking while Lucario’s one reached deeper inside him. 


“W…Wa…Wait…” He begged between breaths, “D…don’t do i…it…Lucario!” 


“Ren…Mate!” 


With a final thrust into his anus, he shoved it deeper than ever, creating a pop sound when his sheath entered. There, cum erupted from the tip like a volcano, exploding out. For both of the wolves, they had a climatic orgasm, with Ren shedding a tear as he felt his cock and balls open up to form a new organ. One that he only read about in books but never actually saw it himself.


His cunt. 


His best friend just laid on the grass, panting. Scenes of that ecstasy replayed in his mind on loop. From the decent size, his boner that still dripped cum, was now at a mighty six inches with a girthy width. Lucario was still amazed at how amazing it felt to finally release and cum all of his seed. To his best friend no less. 


On the other hand, Ren was trembling. He merely glanced at his new cunt, still questioning where his male organs went? Didn’t take the trainer long to connect the dots after seeing the massive boner that Lucario has. Oh Arceus, why was it so big? Did he actually steal his cock and replace it with this…? 


Soon, a sweet aroma filled the air. Ren shook his head. This was crazy. How was he going to live as a guy now? He didn’t even have his junk now… All of this was because of Lucario’s stupid rut… He slammed against the ground, whining, “Lucario! All of this is your fault! How could you do this to me?” 


“Ren… Sad?” He tilted his head. Strange, why was his best friend this depressed? He was so meek and submissive, he didn’t need a cock anyways. He was better off with a cunt and became Lucario’s mate. Sniffing the air around him, another urge soon came over him. One more round, this time sweeter than before. Ren’s was practically begging him to fuck, wasn’t he? 


Pinning the wolf onto the ground with both of his paws, Lucario let his tongue out. He wanted to please his friend. He didn’t want him sad, didn’t he enjoy getting fucked by him? Ren looked up at the shorter Lucario. Even as such a height difference, he was trying to prove his dominance? 


Crossing his arm, Ren complained, “Go away, Lucario. Don’t want to talk to you now,” He softened his voice. Just by hearing the tone, Lucario also knew how severe it was. Ren only does it when he is really upset or disappointed, like how he lost the third gym for the third time. 


Well, he had to cheer him up in some way. Lucario leaned forward and stretched his paws into his new cunt. A little small and tight, but he still had the aura to make it bigger. Ren wanted to protest but the sheer shocks that were being sent up to his mind was enough to paralyse the man. Felt too good to stop him now. 


Pushing the openings aside, Lucario’s paws fiddled with his new clit. Touching against it made Ren twitched and grabbed against the grass with his face flushing red. See, that made him happier. A strange flame ignited inside Ren. An urge that concentrated deep in his cunt. Ren’s thoughts soon simplified in trying to fulfill this need as the Pokemon continued making his cunt larger. 


His new pussy reacted in kind, widening up and swelling in size. Getting wetter over time, Lucario flashed a wide grin before growling, “Lu-Lucario!”  


Ren bit against his lips, trying to take back some control. Wait, was this what she meant by a cost? Was it his masculinity? But… wasn’t that so cruel? Cruel for him to lose his own rod to become champion. 


Those thoughts melted away once Lucario flashed his pair of puppy eyes. Right, how could he ever get mad at Lucario for this? Much like him now, he was also in heat and wasn’t thinking right. Sudden urges to raise his ass to show his new cunt invaded his mind. Was this how Lucario felt as well? 


Without hesitation, Lucario spread open Ren’s larger legs before giving straight into his pussy. His tongue was now doing the heavy work, rubbing against the soft feminine ridges. The wolf’s tail continued to wag faster and faster. He covered his mouth. Out of both shame and fear of catching other Pokemon’s attention. 


Muffled moans echoed throughout the forest while Lucario slurped up every drip of his precum. Like a fish, he was hooked onto this sensation, wanting Lucario deeper inside him, fulfilling both of their desires. Ren’s gaze shifted subtly towards his large knot. 


Visions flashed of his juicy cock deep inside his cunt within Ren’s mind. On how big it was, how was he going to fit it inside? His pussy, still so tight, couldn’t possibly handle such a big strong cock… Maybe, this was better for both of them… He wasn’t much of a guy to begin with, not when such a strong fine man was dominating over him. 


The Pokemon had the same thoughts. Ren was his mate. Nobody else was allowed to have him. Using his eyes, he could see other Pokemon’s eyes glowing from the woods, trying to get a piece of him as well. Lucario raised from his cunt, intimidating them with a glare. 


Ren meanwhile could finally catch his breath. The flame within his legs seemingly grew larger like Lucario had just added oil to the fire, causing it to burn brighter and stronger. His eyes only fixated at Lucario, now recognising his scent as something reassuring and protective. He blushed. Trainers weren’t supposed to have these feelings for their friends but here he was now craving his alpha’s attention.  


With a loud howl, Lucario scared off all other strays. If they wanted his mate, they were going to get through to him first. His trainer however was now touching against his new cunt, feeling how puffy and thick it was. Oh Arceus, it was wetter than before. His paws couldn’t stop rubbing the exterior, feeling a thrill down his spine all the way till his tail. 


“Ren…Happy?”


Lucario asked, facing against the now blushing Ren’s expression. The wolf merely nodded back and he went onto all fours, raising his tail. He pouted a little, “...Please Lucario… Give that big fat cock to me! I want all of it! All of your seed!” 


The Pokemon need not understand half of his words. Just seeing how horny his new mate was enough to pop a boner, stretching longer than that six inches. His tail wagged faster and faster, everything felt amazing to Lucario. He was going to make him cum so bad that Ren couldn’t help but stay by his side and need him whenever possible. That sweet aroma invaded Lucario’s nostrils once again, sending him with another way of heat. 


“Lucario?” 


He growled now mounting his whole body weight onto Ran. His hips now answering for him, humping against his cunt, quickly shoving it in and out. For the new cunt man, his voice was going sore from how aggressive his mate was. Was his boner bigger this time? Didn’t matter how it kept rubbing against his golden zone; every single shove was pure euphoria for Ren. 


A loud clapping sound repeated itself, scaring off other Pokemon and their trainers. His tight pussy loosened almost immediately, giving way for Lucario’s boner to dig deeper inside. The wolf gripped against the grass. Salvia drooled out as his eyes were in a daze, pleasure surging through his body. 


Lucario couldn’t be happier. Months and months of holding it in and humping against stupid trees were definitely torture. Ren kept on lying and saying that he would find him a mate only served to rub salt into the wound. It was driving him mad, like he couldn’t even think properly. Now, his best friend was the one getting his pussy pounded into while he got his fix of action. Should have done this way earlier… 


“Lu…Lucario…” He glanced back at his Pokemon, “H…Harder please…” His eyes practically showed how addicted he was, only having eyes was the handsome alpha. Well with such a submissive bitch, how could he not deliver? He too wanted to take it a notch further. 


Now where could he continue this? He was already so deep inside him and his little bitch was practically moaning every second now.  Lucario glanced down at his mate’s ass. Was a little too flat was his liking… Maybe just a little twitch would fix it. 


Gathering the aura, his paws gave his best friend a good squeeze while the pounding continued onwards. Ren now bit against his arm, finally adjusting to the intense pleasure. What was Lucario doing back there? Not that he minded. 


“Lu…Lucario!” The alpha shouted, slapping against his ass. They jiggled against his paws. Jiggled? Ren immediately glanced back before letting out a gasp. His flat ass was now jiggling with the usual back and forth - meanwhile the sensitivity of his fur kicked up a notch. Felt so good to be touched by his alpha till the point where he let his tongue out, panting like a dog. 


The aura now reclaimed by Lucario empowered his stronger, shorter body, sharpening both of his spikes and tensing up any of his muscles alongside. Felt like nobody in the world could stop him in battle of course. 


Ren leaned backwards, seeing his larger ass squishing against his big boner, “More! Lucario! More!” The Pokemon now started to pant, the pressure was getting to him as it loaded up within his shaft. If this continued, he couldn’t help but release all of the pressure, cumming his seed deep inside him. 


His bitch couldn’t help but immerse himself within the experience. Why was he so against it in the first place? This was heaven for him. All of Lucario’s scent now blanketed his own while the Pokemon was showering all of his love to him. And after all of the time they spent together, who would be better as his mate than him? 


Constantly coating his pussy juice against his large boner, his pussy was getting sore now. Of course Ren wasn’t satisfied yet. Where was his seed cumming deep inside him? And what did his alpha think about it? Was Lucario alright with this? 


Another surge of energy shot through the trainer, this time harder than before. His ass now jiggling up and down for Lucario to give them the occasional squeeze and slap. Glancing back, Ren noted how much muscular the mega evolved Pokemon was - a large smile grinning from ear to ear to reveal his fangs. 


The flame now wavered inside him. Somehow even Ren could feel Lucario’s pent up pressure about to burst. The groans from Lucario echoed in his mind; both of them inching closer to a climax. With a slight sway of his tail, it tickled around his alpha, “...Breed…me…Lucario!” 


On command, Lucario popped a knot deep within him, almost touching against his new female organs, making Ren winced a little. There, Lucario gave one final push, penetrating through his puffy cunt and howling in pride. Ren followed up to the best of his ability, howling alongside his alpha. 


Cum burst through Lucario’s boner once more, continuously gushing out like a waterfall that crashed against his feminine organs. So much so that his belly began to swell up with all of that warm cum, deep inside him. Both parties had the best orgasm that they had in their whole lives - their minds completely shattered with the euphoria and ecstasy drowning their every thought. 


With how tight his balls were inside Ren, Ren couldn’t escape while cum dripped inside. Not like he wanted to. He wanted every drip of his seed deep in him. Even if that meant his belly was fatter than usual. 


Lucario on the other hand was finally satisfied. No more dry humping trees when his bitch was right next to him. Another howl escaped from him. This time out of sheer joy to have Ren by his side. His paws soon dyed back to the black fur while his spikes retracted back to his body. 

Slowly, his eyes reverted back to their normal hue. However even as the mega evolution revered, his muscles and new knot was much larger than before much to his excitement. Lucario glanced at the panting Ren, giving him a smug look. 


The shy wolf blushed before moving towards the smaller Lucario. His musk undeniably gave him reassurance that his presence was felt. That he was there to protect him. Snuggling beside Lucario, Lucario soon leaned against his back, closing his eyes. 


Guess training would be postponed later then… 


A couple months flew by and Ren was taking down the Elite Four with ease now. His mega Lucario was overpowering their Pokemon with ease, dodging their attacks before giving a swift counter attack. 


When asked how he had trained Lucario to this form, Ren would blush up and just replied, “Oh you know, I suppose we share a special bond. Sometimes, he learns something new, sometimes I learn something new and we’ll improve together.” 


It was a convincing answer on the surface where in the day, they’ll be seen training together. Yet once the curtains were closed, Lucario would fuck Ren senseless - occasionally with both of them going in heat but usually it was for fun. 


Even in public, it was hard to say who was the trainer with how domineering Lucario was towards Ren. He came up with a new tease, slapping against Ren’s ass whenever Ren was speaking to someone. Ren would just suck it up. He enjoyed how his alpha treated him, even with how he touched him, slapping his ass. 


And that new shift in attitude applied to all of his other Pokemon. While Ren might be Lucario’s bitch, his other Pokemon had their fair share of fun, getting their turn with Ren whenever Lucario was not feeling it. 


Took Ren to accept this fully, especially with his pussy rubbing against his undergarments. Urges came and went, with the flame occasionally reignited inside. Some days when he woke up, his boxers would be soaking wet with all of his pussy juice spilling onto it. And fortunately, for him, Lucario was willing to have a nice slurp before battle. 


A part of him was still trying to argue that it was to improve their battle skills and vent out their frustration onto him, such that they could focus on battling. But slowly, his stance just changed into accepting his position as Lucario’s bitch, constantly having an inflated belly carrying their warm cum. 


Finally after taking down the last Elite Four, Ren stumbled back into the hotel, completely exhausted. Who'd guessed that she would pull out another stupid full restore on her Spiritomb? Ughhh. Luckily Lucario had hidden power which clenched the deal for Ren. 


Lucario escaped out of the Pokeball, raising his eyes up, “...Ren…Breed?” 


“Sorry Lucario, I’m just too tired now,” The trainer laid on his bed flat, completely drained. 


The Pokemon grabbed against his ass, hoping for some response but his expression didn’t even change, “...Ren…Tired?” 


The wolf nodded, stripping his clothes off. Hopefully, he wouldn’t demand for sex tonight, it wasn’t even breeding season yet (they had their heat cycles in sync to cater for each other). 


“...Lucario…” He yawned, “Sleep… Mate…” The Pokemon got onto his bed, snuggling close to Ren’s body. Huh, guess he didn’t just want sex. 


Ren followed suit, letting out another yawn before pulling the blanket on them. His bitter musk covered the bed completely. With Lucario's head lying on top of Ren’s chest, the trainer let out a grin. Ever since that day, their bond had grown so strong, they were practically inseparable. 


He gave a little kiss on his cheek before closing his eyes, falling into a deep slumber.