Things had changed completely for Mewtwo. It had been months since he had first put Darren in his place and since then he had been training Darren in secret. Now the boy was obedient and servicing his every need. Even better was the human boy gaining an enjoyment and appreciation of the pokemon’s treatment. 

As of late, Mewtwo had been reading about the BDSM community. Specifically he took an interest in the subject of pup play. This gave him the idea to further train Darren as his own pet. Fully committing to this idea, he ordered a custom set of Lucario-themed puppy gear. He was still waiting for it to arrive in the mail and made do with the training that Darren had received so far. While still reading from his book, the legendary pokemon was also levitating.  

“I’m ready for you now.” With those words said, Darren perked up and approached the floating pokemon. Being on his hands and knees, the boy crawled underneath Mewtwo and rested on his knees. The pokemon had his large tail out of the way as he read. Darren got a clear view of his hole up close. Now fully broken in, the sight was enough to make Darren nearly start drooling. Time spent alone with Mewtwo now brought excitement to the boy. He was always so eager to please the legendary pokemon but was trained only to act when Mewtwo said so…

That being said, he was finally allowed to act. He got in close from underneath and pressed his face right into the psychic-type’s ass. The first thing the boy did was sniff. Mewtwo’s musk was absolutely addictive, especially the musk that came from his tailhole. 

Mewtwo didn’t react much from being sniffed. He was waiting for more while also being immersed in his book. That wait wasn’t very long. After pressing his nose directly to the rim and taking in the smell straight from its source, Darren began to lick it. Rolling over the soft pink surface, Darren was given a taste of his master’s musk as well, loving it just as much as the scent. They were slow at first so he could really enjoy it but grew faster until he reached the pace that Mewtwo liked. It twitched from his touch and Mewtwo was also making a few sounds. 

Darren was impressively licking the rim, giving every part of it attention and making it completely wet because of his spit. Mewtwo flicked his tail to the side. While it seemed like an ordinary gesture, Darren knew what it meant. Understanding what the pokemon now wanted from him, the boy stopped licking and instead began to push his tongue inside. A louder moan came from Mewtwo. His tailhole was being spread around the boy’s talented tongue. It was sliding into him slowly. The warmth and texture was already rubbing against the lining of his anus. 

Mewtwo reacted more when more of the tongue was eased in. Now they were really getting to the good stuff. And when the tongue was fully inside Darren wasted no time moving it about. He wasn’t mindlessly flailing it about. The boy was taught how to do it effectively and was putting the teaching and practice into action. 

It was now becoming too much to simply ignore, Mewtwo had to close his book so he could really enjoy it. Darren’s tongue was deep in his ass now. It was moving back and forth just the way he liked it too. Saliva was making his ass wetter too. Grunting to himself, the legendary pokemon lowered his ass and put more of his weight down on the boy’s face. The human’s tongue slid in even deeper and moved it faster too. Darren was doing his best to rim the pokemon’s ass. After the tongue was sunk deep inside, Darren started swirling it around. 

It wasn’t just because he was told to; Darren had his own reasons for obeying the pokemon’s orders. For example the smell of Mewtwo’s musk and the taste of it too. Having all of his tongue inside meant that his nose was also pressed close to the wet rim. It was fully spread out now thanks to him and the hole was made completely wet from his saliva too. It didn’t take long for Darren to find the prostate either. Touching it again, Darren applied some force to it and Mewtwo reacted with a deeper moan. 

“Good…” Having that spot licked really got Mewtwo going. Strong waves of pleasure caused him to stir and put more focus on being rimmed. His cock was twitching at first but grew harder as the licking continued. Another sweep of his tail came, this one expressing how he was feeling and Darren was glad that his master was enjoying it. 

Giving the prostate more attention on purpose earned Darren a few squeezes from the pokemon’s soft hole. While feeling that he was also inhaling Mewtwo’s musk with greater volume. 

“Keep your tongue right there!” Mewtwo said with a groan. For him the pleasure was getting stronger. His cock was fully hard but wasn’t touched yet. He was getting enough from knowing that Darren was loving this. Rimming him so thoroughly and huffing his rump musk with so much passion. “Lick it harder.” 

Obeying the order given to him, Kory reached his tongue in. Reaching in as much as he could, Darren started moving his tongue a bit faster but it was the increased strength that really got Mewtwo going. The kid’s tongue was sweeping and twirling all over. The prostate was being pressed down on even more than before and Mewtwo was biting his lip from how good it felt. Still having yet to be touched, his cock was twitching even harder and leaking precum from his tip. Wanting even more, Mewtwo stopped levitating entirely and dropped himself down on Darren. 

“Suck on it. Show me how much you love my musky ass,” Mewtwo said. He was loving the attention and power he had over the boy. His words were heeded and Darren was licking and sucking at the same time. Many kisses were given to the spread rim while his tongue was still swirling against the walls. More clenches came as Mewtwo reacted to the even stronger pleasure but Darren pushed his tongue right through the tightness and struck the prostate again. While doing all of that, he was also taking in the musk that never stopped wafting from the pokemon’s hole, moaning from it and the taste that stayed strong on his tongue. 

Their enjoyment was cut short by a ring of the doorbell and knock at the door. Mewtwo was at first annoyed until he realized that it was the delivery. After waiting so long the gear he ordered had finally arrived! He rose up on his own without letting Darren know first. The boy was licking as the rump lifted up. A thick line of saliva briefly connected his tongue’s tip and the wet winking rim. Mewtwo simply stood up to his full height and stepped over Darren, his plump balls swaying in time with his footsteps. 

When he opened the door, the mailman was surprised to see a legendary pokemon, let alone one that was fully erect. The pokemon was quick to sign off on the package and take it from the stunned human, promptly shutting the door in his face. 

“It’s finally arrived,” Mewtwo said with a smirk on his face. “I can’t wait to see how you’ll look with it on.” 

As the pokemon helped the boy get the gear on he was also explaining how Darren was to act whenever he had it on. He was already obedient but what Mewtwo wanted was for the boy to act like a good puppy. The gear fit him perfectly and getting the mask on Darren’s head was already making Mewtwo antsy. 

“How does it feel?” he asked. Darren didn’t respond with words. He acted like a happy dog instead and this pleased Mewtwo in more ways than one. 

“Such a fast learner. Good boy… Keep it up and you’ll get your bone soon enough…”

“Mewtwo?! What is all of this?!” 

Mewtwo and Darren were so focused on getting the gear on that neither had noticed Red’s early return home. The pokemon champion didn’t know what to think when he heard them talking but that was before he saw his son in kink gear and his pokemon’s full erection. It took no time for him to put the pieces together. 

He was immobilized by Mewtwo’s powers. Though a talented pokemon trainer, Red was still powerless to free himself from the psychic hold. The legendary pokemon kept him suspended in place effortlessly and even chuckled at the sight of him struggling. 

“I should have known that you would find out sooner or later. But you’ve chosen quite the time. Since the secret’s out I think it's time for you to learn the truth. That I own your son and I’m in control. I’ve made him the perfect pet during all the time you were away. You’re welcome to see for yourself.”

Mewtwo proceeded to put Darren through some puppy training right in front of his father. Picking up the leash attached to the boy’s collar, he led Darren to his chair. The pokemon at first sat himself down before giving a command to his new pup pet. 

“What pup doesn’t want a pair of balls to play with?” Mewtwo asked. He reached a hand down to fondle his sack and Darren’s eyes were instantly focused on them. Another pull in of the leash was Darren’s signal to act. When he was close enough, the boy made contact with the pokemon’s cock. He began to lick it, by sliding his tongue upwards until the tip was reached. The pokemon’s flesh was already throbbing against his tongue. From the tip came more precum that Darren collected. The taste made him moan out. After lapping it up from its source, Darren moved his tongue downwards again until he reached the balls. 

With a grin on his face, Mewtwo pulled the leash and Darren’s head was pulled forward. His face was pressed into the pokemon’s warm and musky balls. The smell coming from them was natural, masculine, and mouth-watering. Darren couldn’t help but moan just from inhaling their aroma. He loved every part of the pokemon’s body but those balls of his… Something about them made Darren so needy for them. Not only did they smell good but they looked good too, a pair of perfectly shaped and weighty orbs that were slightly damp with sweat. 

“Go ahead and start sucking on them,” Mewtwo said. He looked over to see Red still struggling. It amused him and also further aroused him. Doing things to Darren while his father was watching, it was doing more for him than he thought it would. 

With permission now given, Darren was quick to open his mouth. His tongue began running all over the warm sack. The flavor of Mewtwo’s sweat made him moan again. It was so good. He couldn’t help but lick all over them as best he could. Doing his best to be a good puppy, Darren aimed to clean the sweat from the orbs. Starting at the front, his tongue cleaned away the tasty sweat there and then he started running his tongue along the sides and then underneath. 

Mewtwo was moaning out. It wasn’t just the feeling of having his balls licked like this. There were other elements like Darren’s eagerness. That at one point the boy was an untamed and insufferable brat. But not long after their first sexual encounter he was turned into a willing servant that would do anything he asked. He watched the boy work and shuddered when Darren opened his mouth wide. 

Darren was taught well. Even if he was done cleaning the sack there were still many ways to interact with him. He sought to make the pokemon feel good so things were taken further. His tongue was used to slip both balls into his mouth. It was a snug fit but had been done enough times to make him used to it. Darren began sucking on the balls while also licking them again. Doing both at the same time made Mewtwo groan louder. The pokemon’s cock was rock hard as it bounced and flung a rope of precum that landed on Darren’s mask covered face. 

Mewtwo could feel his balls getting wetter and warmer from the boy’s perfect mouth. He was loving the attention that his ballsack was given. Leaning back in the chair, Mewtwo loosened the grip on the leash but Darren stayed right where he was. 

“How do they taste?” Mewtwo asked. Darren mumbled something around the sack. The vibrations made the pokemon shudder. Gripping the arms of the seat tighter, Mewtwo released more precum that dripped down onto the mask. 

“You shouldn’t talk with your mouth full,” the pokemon said with a chuckle. Darren nodded and put more focus into moving his tongue while also suckling with more force. At the same time, the boy was still breathing in the musk that came from them. He couldn’t get enough of the potent and earthy scent that remained despite all of his oral cleaning. 

Mewtwo hummed and shifted in the seat from the growing pleasure. Darren’s tongue was swirling all over his balls. They managed to touch every spot and the warmth of his saliva was just another factor that added to the greater whole of having his balls worshiped. Darren was still moaning against them and more vibrations raced up his cock, making it leak even more. The sounds of Darren’s sucking were easier to hear as they were getting even stronger. 

“Oh, don’t look at me like that. Your son’s finally behaving. And putting his mouth to good use,” Mewtwo said. He looked over and saw Red’s glare. Mewtwo had a feeling it wasn’t just anger from his son being used like this. He didn’t need his psychic powers to detect his trainer’s jealousy. It seemed that Red wished he was in the pokemon’s position right now. 

Mewtwo decided to give Red a good show. It would also serve to show that he was much better than any human, having a bigger cock and bigger balls too. There was no way that Darren would settle for something lesser. He brought his head down and placed it on the back of Darren’s head. He scratched between the pup mask’s ears and called him a “good boy” again, making sure that Red heard it. He pushed Darren’s head in even closer and spread his legs wider, giving the boy more room to work with. 

Darren leaned his head in even closer and was soon sucking and slurping on the sack even louder. Mewtwo moaned deeply and gave the pup more head rubs. Praising him and getting more licks to his balls, the two were ignoring Red and getting what they wanted from each other. After a while of this, Mewtwo pulled Darren’s head back and his balls popped free from the boy’s mouth. They were glistening and dripping saliva. Darren was panting like a dog but remained as he was, waiting for the pokemon’s order. 

“Hope your mouth isn’t tired. I have something else for you to suck,” Mewtwo said. Still having a hold on Darren’s head, he guided the boy to his cock. Darren acted right away. His tongue was moving again. Mewtwo watched and felt that tongue rolling over his length again. Being so pent up and sensitive, Darren’s actions had an even greater effect on him. The shaft was both length and thick, something guaranteed to satisfy anyone on the receiving end. Darren was licking all over and didn’t stop until the cock was just as wet as Mewtwo’s balls. The precum was licked up and the taste was savored just as much as the musk. 

Mewtwo tapped his hand against the seat’s arm and Darren moved in. His soft lips wrapped around the tip and slid further to take in the thick and tasty cock. Mewtwo was again moaning out from the feeling and his hand was gently patting the top of Darren’s head. There was so much to enjoy: the soft lips that were wrapped around, the tongue sliding along the underside, and the taste of more precum coming out. 

“Yes…” Mewtwo moaned. About half of his cock was past Darren’s lips. The boy gulped from the precum that was released and his tongue rubbed against the underside a bit. Mewtwo decided to help Darren out by pushing on his head. It worked as the human was taking in more of his inches. Gradually all of it was inside. The tip and a few inches behind it were being hugged by the boy’s throat. Mewtwo held him still for a bit before pulling his head back and pushing it forwards again. The pokemon shuddered from the silky throat moving against his cock. Darren wasted no time flicking his tongue against the tip, catching another drip of precum on his tongue. 

It still took a bit of work but Darren was able to cleanly take his cock all the way down to the base. Moving the boy’s head back and forth, Mewtwo worked to get the boy used to his size again. It had been a small while since the last deep throating session. When the boy’s throat was properly stretched out, Darren was able to move his head forward on his own, taking Mewtwo’s full erection without need of assistance. 

“You’ve gotten very good at this,” Mewtwo said. Easing his hand off and sitting back in the chair again, he let Darren take things from there. Darren was bobbing his head and taking the length without trouble. It was so tight and warm, even tighter when his throat was squeezing. It was also sucked and licked on when the cock came sliding out back over his tongue. Darren knew just what the pokemon liked. In between the throating he could take a moment to lavish the length with more flicks and twirls of his tongue. 

It was getting better the longer it lasted. The warmth of Darren’s saliva and the softness of his throat walls. More squeezes came from Darren swallowing down more precum. Mewtwo wanted even more and reached his hand down again to push Darren’s head down. Keeping a grip on the mask, Mewtwo guided the boy into a faster and rougher blowjob that brought him so much extra pleasure. His cock reached further into the throat and Darren made a sound from the feeling of it expanding his throat even more. Having his lips and nose pressed firmly to Mewtwo’s crotch, he took the chance to inhale more of the legendary pokemon’s musk and it made his mouth water even more. 

Mewtwo moaned and shuddered from more of his cock being hugged by Darren’s throat. His hooded head was released but the pace and power was maintained all on his own. Moving back and forth, Darren swallowed down the cock every time and Mewtwo voiced his growing delight. 

“Take it all…” Mewtwo said with a deep grunt. He bucked forward with his hips and shoved his cock in even further. Darren wasn’t prepared for this but endured the extra filling of his throat. After taking a moment to collect himself, the boy resumed his blowjob and picked up right where he felt off. Mewtwo kept thrusting against the movements of Darren’s mouth. They were working in tandem now. His cock sinking in even deeper now, Mewtwo was clutching the arms of his chair with an even tighter grip. It was felt pulsing deep in the boy’s throat and Darren felt the precum flowing directly into his stomach when he swallowed. 

Mewtwo looked over to make sure that Red was still watching and gave the adult human a smirk when their eyes met again. Red glanced away with a visible blush on his face and Mewtwo couldn’t but smirk. Putting his focus back on Darren, he started thrusting faster and the boy sped up his blowjob to match the new pace. All of this licking and sucking was starting to come to a head. With every lick and suck, Mewtwo felt himself getting closer. His moans were getting louder to match the feeling getting stronger. Darren was moaning as well around his master’s cock and he was still enjoying the warm precum that was still flowing from the tip. Still working together; between Mewtwo’s thrusts and Darren’s sucking, they were both getting the pokemon all the closer to his limit. 

“Here it comes!” Mewtwo announced. Thrusting in for the last time, the pokemon’s cock was shooting his thick seed with force. Darren could feel it from deep inside of his throat. He began to swallow it down but more was shooting out right after. Darren continued to moan from the heat and the musky flavor that reached his tongue. Mewtwo was still groaning deeply while still pumping more cum from his fat saliva-coated balls. Darren didn’t let a single drop go to waste. His moans made it clear that he was loving this. 

Mewtwo sighed when he finished blowing his load. He could feel that the weight in his balls had been eased significantly. He had been feeling a bit pent up earlier that day but Darren knew just how to take care of that. Though he had cum a lot, the psychic-type pokemon was still far from done with Darren. He pulled his cock from Darren’s mouth and the boy swallowed down the last of Mewtwo’s cum with a smile on his face. 

“Perfect… But you’ve got something all over your face. Looks like the puppy needs a bath.” Mewtwo got up from the chair and led Darren with the leash. Red was brought along with Mewtwo’s psychic powers into the bathroom. Darren was led to the tub and he climbed in, crawling into it the same way a puppy would. Mewtwo climbed into the tub as well while Red was still left floating with nothing else to do but watch. 

Standing over the puppy-acting boy, Mewtwo aimed his cock and grunted a bit. Darren felt something wet and hot on his chest. He was watching the pokemon piss on him. A thick stream was flowing straight from the tip and it was pouring over his bare chest and stomach. Their eyes met and Mewtwo aimed to shower more of the boy’s body. 

Still having the leash in his grip kept Darren close. His urine came out with more force and Darren felt his body being washed with it. When the stream was aimed upwards, the cum was washed from Darren’s face. The musky smell of it made the boy shiver. Like a good boy, he let himself be marked as the pokemon’s pet and property. Mewtwo aimed at another part of Darren’s body and a bit of his urine got in his mouth. He reacted to the taste but still swallowed and enjoyed the taste on his tongue. 

Mewtwo was still going, having a full bladder that he was going to make full use of. This time he aimed at the human’s mouth on purpose. With one hand he pried it open and pushed his cock’s tip past Darren’s lips again. Still coming out with force, the fluid was poured directly
 into his pet’s throat. When it was gulped down, the pokemon’s mark was flowing down into his stomach, joining the seed he drank down earlier. Moaning from the relief of urinating, the pokemon’s tail flicked in a manner that conveyed pleasure. Things were rather quiet in the bathroom, it wasn’t hard to hear Darren’s swallowing and the trickles of Mewtwo’s urine filling the boy’s mouth. 

Darren began to blush when his and Mewtwo’s eyes met again. The pokemon was standing all over him with the leash in his hand. He was in control and was clearly loving every second of this. A small grunt came and the flow became even stronger. Darren had no choice but to keep gulping but he was also shocked by the amount of piss that was stored in the psychic-type’s bladder. Suddenly his mouth was about to be overfilled with the hot and musky stuff. He had to swallow down harder and faster to keep up with it all. 

Mewtwo made it easier by pulling his cock free from Darren’s mouth. Wet warmth rushed over the young human’s neck. Mewtwo lifted his cock upwards so his piss would come raining down onto Darren. Instead of feeling any disgust, Darren was embracing this and basking in the hot rain that cascaded down onto him. He wanted to be marked by the pokemon and to wear his musky scent on his body. The hood also became soaked, smelling of the pokemon’s scent as well.

Getting the boy’s entire body wet, Mewtwo sighed deeply as he took in all in, such as the sounds of the trickling and Darren’s various noises that all portrayed him enjoying this. Keeping the power of his flow up, Mewtwo simply enjoyed the feeling. The boy was being showered in his urine, keeping himself in its radius and even sticking out his tongue to get another taste of it every now and again. At this point the boy’s gear was also completely soaked in it too. 

Feeling that his flow was starting to weaken, Mewtwo aimed for other parts of Darren’s body and made sure that his pet was thoroughly marked all over. All of it was flowing down the human’s body and further down the tub’s drain. 

“There. You look much better now. Now let's get you dried off.” Mewtwo used his powers to dry Darren’s body but the musky scent of his markings remained on the adolescent’s body. 

“Don’t worry, Red. I’ll give him a real bath later. But I’m not finished with him yet,” Mewtwo said. Red wasn’t able to say anything. His body language was conflicting as well, with a scowl on his face but an erection in his pants. 

Mewtwo led them both out of the bathroom and into the living room again. The pokemon commanded Darren to get on his hands and knees. Upon doing so, the kid knowingly presented his ass. This earned him praise and another pat on the head as Mewtwo tread around to get behind him. 

When he was in position, Mewtwo got in close from behind and dropped his big cock in between Darren’s asscheeks. He rocked his hips, grinding it in between them a few times. When his precum came leaking out, Mewtwo used it as lube, smearing it over his tip and the rim. Once his pet was “lubed up,” the pokemon closed the distance between them by pushing his cock in and shoving all of his inches in at once. 

The strain of being stuffed full of pokemon cock was quickly overshadowed from Mewtwo’s thrusting. Pleasure took over, coming from the deep filling of his ass and the touching of his prostate. He had taken Mewtwo’s cock many times but the sheer size of it was something he could never get used to. Mewtwo was grunting deeply as he roughly jammed his cock into the soft hole. He could never get enough of Darren’s tight ass. The two were making a lot of noise together, making no attempts to shield Red from their carnal delight. The tag attached to the boy’s collar was jingling in time with every thrust. 

“Mmm… Such a tight puppy…” Mewtwo praised. Darren managed to bark and whimper in response, the latter noise being cut off by another moan. His master’s cock was touching his prostate with ease and leaking so much precum. Those fat balls bumping against his own with every thrust led to more pre spilling out. Slick sounds of the cock easing in and out could be heard too. 

Mewtwo went faster and harder, his hips smacking in the boy’s ass roughly. All of his cock was pushed in every time, being squeezed firmly by the hot walls. Darren was moaning even harder from the feeling. His ass was spread around the girth and the length ensured that he was stuffed to his limits too. As more contact was made with his prostate, Darren felt his bouncing cock getting hard without him touching it. 

After a bit, Mewtwo was thrusting in even faster, using the precum in Darren’s ass to his advantage. Precum was still spilling from his fat balls. Some of it was leaking out and down the orbs. Darren felt the heat and messiness. He was panting hard like a dog and made more needy whining sounds as the pleasure rose on his end. Leaning more of his bigger body forward, Mewtwo felt himself getting close to his climax. 

The final thrust came extra hard and the length was kept buried deep in the boy’s ass. His cock swelled again before thick ropes of his seed were released into Darren. The pokemon moaned deeply as he came another big load inside of the soft hole. He didn’t stop until the last spurt came. His cock was pulled out with a loud slurping sound, being still hard and dripping from the tip.

“Did you like that?” Mewtwo asked. Darren nodded while still panting, needing a moment to collect himself. 

There wasn’t much time for that. Mewtwo was still hard and horny. There was still more seed for him to give. Without waiting for his pet to be ready, the pokemon pushed his cock right back into the still-tight ass. Picking up right where he left off, Mewtwo thrust in roughly rough out of the gate. His tip dived into the deepest part of Darren’s ass and the slapping of his balls against Darren’s was even louder than it was before. Red was again forgotten about; Mewtwo’s focus was on completely dominating and breaking in his puppy. 

Just like before, Darren’s cock was throbbing and leaking precum while not being touched by himself. His prostate was being seamlessly rolled over with every push and pull. It became too much for him to take. Crying out with an almost feminine pitch in his voice, Darren came hands free. He shot a much lesser amount of cum onto the living room floor while Mewtwo was still humping into him, doing so even faster now. 

Darren’s ass was squeezing down hard from his climax and Mewtwo used that to get himself off for the second time. Shoving his cock all the way inside again, the pokemon deeply seeded the “lucario pup.” Sounding almost animalistic, the pokemon thrust a few times while still shooting the last of his balls’ contents. He and Darren were left groaning and shuddering heavily together for a while. When Mewtwo pulled out a rush of musky cum oozed from the boy’s spread hole. 

Mewtwo released Red but warned him to behave or else he would be turned into another pet for him. He even offered to give the father a chance at his own son if he behaved. Red said nothing but his eyes did wander onto his son’s still leaking ass. But he turned his head away and retreated to his bedroom. Mewtwo just chuckled and returned his attention to Darren. 

“Come now. Let’s get you cleaned up. You’ve been a good boy so I’ll let you have a treat after dinner,” Mewtwo offered. 

Darren perked up and eagerly followed, still walking on all fours while being led back into the bathroom by the leash held in Mewtwo’s hand.