Growcario Chris sighed and took a seat on the couch. The Pokémon Center had done its job of healing his Pokémon, but he was totally bushed. His Lucario sat next to him, slumped and tired. They’d spent the entire day trying to Mega Evolve, hours of training and practicing. But despite all their efforts Lucario just didn’t seem to be able to do it. At first he thought that Lucario just wasn’t high enough level but their training hadn’t paid off. Nor had any of the supplements he’d bought to strengthen his Pokémon. He knew it couldn’t be a lack of connection; he’d raised Lucario back when he was still a Riolu and spent years together. But now, weeks of wasted effort… seemed it would never happen. Lucario scooted close to his trainer, looking up with a sad expression. “Oh, it’s not your fault buddy. You’ve been trying so hard,” he said, ruffling the Pokémon’s headfur. “We’ll make it happen someday. And if not, you’re still my friend.” That seemed to cheer Lucario up a little bit but the Fighting type still looked a bit down. Chris hated to see him look like that. Maybe a treat could serve as a pick me up. He reached into his backpack to pull out a rare candy. Something felt off about this one though. Looking at the wrapper, he noticed a small picture of a mushroom on the side. But not like any mushroom he’d ever seen before. Red and white with a small face on the front, like something out of a video game. He shrugged and unwrapped it anyway though. Maybe this would just be a different flavor. The bag he bought was filled with dozens of the sweet treats after all, so it could be that the wrong type of candy just made its way into the bag. His Pokémon sniffed at the candy in his palm tentatively before picking it up and tossing it to his mouth. He chewed happily as the sweet treat filled his mouth with energy. Almost immediately he felt his spirits raise, the sugar putting him in a much better mood. “Lucario!” the little Pokémon said, jumping off the couch. That’s when something entirely unexpected happened. Lucario started to glow. An eerie blue light filled the room. Chris recognized it right away as the same glow that happened when Pokémon evolved. “Lucario! Are you Mega Evolving? We didn’t even have to use the Lucarionite,” Chris exclaimed, reaching into his bag for the Mega Bracelet. Strangely though his Mega Bracelet wasn’t reacting at all. It still looked like the same dull stone. Lucario still hadn’t stopped glowing though. In fact it seemed to be getting brighter, so that when Chris looked back at his Pokemon he wasn’t able to quickly realize what was happening. Lucario knew exactly what was going on though. He used to come up to his trainer’s waist but that was slowly changing. He felt an odd warmth covering his whole body, like being submerged in a hot bubble bath. And soon after with an awkward jerk upward he found a half foot added to his height. His trainer’s hips lowered slowly as he was able to see at eye level with his abdomen, then with another burst just under his chest. “ ‘Cario?” the Pokémon said, backing up slowly. He wasn’t sure what was going on but it certainly felt very good. And he did feel much more powerful too. It might not be so bad after all. With another small burst of size the Lucario reached the underside of his trainer’s chin. This was amazing! He flexed an arm as his tail swayed happily; extra power might mean he could Mega Evolve! Chris would be so happy to see these changes, he was sure of it. Lucario rushed forward to give his trainer a hug, arms wrapped around the backside of the befuddled human. With his eyes closed and a satisfied smile on his face, the Pokemon just knew this was the beginning of something really good. Chris was able to look his Pokemon eye to eye. They were the same height now, just about 6 feet tall. Another rush of energy and Lucario gained a half foot in an instant. Chris was lifted up off his feet by the sudden growth spurt, held to the Lucario’s chest. His feet dangled in the air, just above the floor. It was all happening so fast, Chris was left speechless. He wanted to ask Lucario what was going on, how this was possible. But his mouth only gaped. The blue, evolution light kept shining brightly in his eyes. That made it hard for him to see just how tall his Lucario was getting, or how fast. He passed 7 feet tall. The fighting type stood head and shoulders above his trainer now; muscled blue arms covered more and more of the human’s back as he held tight. Lucario shivered as the pleasurable growth energy filled every inch of his body, pushing him out and up. Why was his trainer squirming in his arms? The Pokemon finally opened his eyes and his smile turned to a look of concern. When he let go of Chris, Lucario had to look down. He was taller. Years of being used to being the small one, and now it was reversed. With another shivering growth spurt the Lucario reached 8 feet tall. He was still very confused, but it felt so good. The tingling sensation of growing larger, taking up more space, was something he hadn’t expected. His fur stood on end as another new feeling crept upward from his crotch. Down there something new had formed, that he wasn’t used to dealing with before. A small, pink shaft peeked out of his sheath. Lucario’s head tilted as he reached a hand down to touch it and was reduced to a shivering moan. Chris looked around the Pokemon Center. This was bad. It was bad enough that his Lucario was slowly growing, outpacing the size of any other human in the building. But now he was turned on? Without thinking Chris rushed forward and hugged his Pokemon again, covering up Lucario’s expanding boner. “Calm down Lucario, this isn’t the time for that,” he hissed. The shaft squirmed its way up the front of Chris’s shirt as it thickened. Rock hard, it rested just at the human’s collar bone. Lucario’s hormones must have been set into overdrive by whatever was going on. He looked up to his partner’s face and gave a forced smile. “Everything is gonna be fine, just stay calm,” he said. Lucario didn’t look so sure though. The light pink tint to his cheeks betrayed that something else was on the fighting type’s mind. He grit his teeth as his body shivered once again, the growth spurt accidentally rubbing his shaft into his trainer’s front. Now it rested just under Chris’s chin, and Lucario realized he liked how rubbing felt. A lot. Eight-and-a-half feet of Pokemon humped slowly, teasingly, into the fabric of his trainer’s shirt. “Luuuu…” he groaned. And again, he shuddered and gained half a foot of height. There was no hiding his raging erection anymore, now that it was right in front of Chris’s face. Lucario stepped backward awkwardly, torn between his pleasure and worry over his situation. Chris tried to hold his partner in place but the fighting type was simply too large and heavy now. His arms barely reached all the way around his waist anyway! The floor shook with each plodding step back, until his foot finally made contact with the front of a couch. Lucario flopped backward, landing with a loud thump that shook the whole of the Pokemon Center. If there was anyone who hadn’t been paying attention before, they sure were now. The couch was a mess beneath him, and a few cracks spread on the tiles. It was a good thing he’d been forced to sit down too. A much stronger burst of growth rocket through him, shooting the fighting type up to 10 feet tall. He’d have been touching the ceiling easily otherwise, if not making a large dent in it. Taking up enough space meant for two regular sized people, the Lucario gingerly rubbed at his red shaft, as his face turned nearly a similar shade of red. He knew his trainer had said no, and he was still unsure what was going on but… it felt amazing. It was like his whole body was being filled with power and sexual energy, libido through the roof, and everything trying to convince him to do something about it. Chris rushed forward again, trying to hide his Pokemon’s boner. He clung to his partner’s hips, the balls and shaft looking more like a large pillow. It was nearly a foot long now… this was completely out of hand. He needed to do something to get a handle on the situation. Lucario moaned when Chris placed both hands on his dick and began to rub up and down. If he could just get Lucario to stop being so horny, maybe he could go from there. If anything, that just seemed to make the situation worse. Lucario tensed up, then relaxed against the back of the couch. Once he relaxed his growth quickly went into overdrive, as if being given permission to properly grow. 10 feet became 11, then 12 soon after. In the course of less than half an hour he’d become twice as tall as most people in the Center, and easily twice as tall as his trainer. He could feel that Chris needed to use both hands to rub his dick. Black paws scooted out further from the couch, toward the center of the room, as they pushed chairs backward. His toes clenched slightly before moaning yet again. “Luucaaaario,” he said, eyes lidding now. He was still fairly worried about what was going on though, awkwardly shooting glances at the other people watching him. Oof, 13 feet tall now. He adjusted his butt on the couch as he tried to get comfy again. Nothing was his size anymore, much to his dismay. 14 feet tall and still growing… Many of the other people in the Pokemon Center had their phones out now, taking video and pictures. They’d never seen anything quite like it, pointing and gasping at Chris’s futile attempts to get his Lucario to relax and stop getting larger. A few of the more observant trainers started to back up though, noticing the small bead of pre pooling at the tip of the enormous Lucario’s member. There was about to be quite a mess. Chris wasn’t sure what to do anymore except hope that once this was all done, Lucario would stop growing. Based on the squirming movement his partner was making, he guessed it wouldn’t be too much longer now. The ceiling was looking extremely close again, even with the Pokemon seated on the couch. His sitting posture had to be awkwardly bunched up, to avoid pushing his legs out too far and to remain seated on the cushions. He was wide enough to take up three whole places now, nearly the entire couch. This needed to end, right now. Taking a deep breath, Chris leaned forward and clung to his Pokemon’s dick with both arms, rubbing up and down like it were a pole on his upper body. That pushed Lucario over the edge. Gripping the cushions of the couch with both hands, he began to buck his hips forward. Chris was nearly knocked off his feet from the sudden movement. Then, an enormous load of cum shot forward, splattering thickly in a puddle on the ground. For nearly a minute straight the fighting type shot his load, moaning and grunting with each thrust forward. Chris held on as tight as he could manage as his friend made a mess of the Pokemon Center. To his dismay, Lucario still wasn’t done growing. He’d made it to 15 feet tall before it was all said and done. The ground cracked a little further with each hump into the air, as Chris’s arms struggled to stay around the steadily thickening member in his arms. Finally, with a thud, Lucario came to a panting, sticky rest on the couch. His ears gently tickled the top of the Pokemon Center. Now covered in Lucario seed, Chris awkwardly stepped backward and turned around. He was met with a crowd of people, all focused on him with cameras at the ready. “Uhh… sorry about that,” he muttered, face as red as an apple. Lucario tried to smile at everyone, embarrassed but satisfied. “ ‘cario,” he said. “…just what the heck was in that Rare Candy anyway?” Chris wondered aloud. --- Darkness covered the Pokemon Center, along with its two newest occupants. There was no way that Lucario would be able to leave through the front doors of the Center. Thankfully the staff totally understood even if they were a little weirded out by the whole event. They let the pair stay the night, a sort of sleep over. They could work out a solution tomorrow. That solution would probably end up with Lucario crawling through the doors on his hands and knees. If he could still fit through. But that was something to worry about in the morning. Right now, Chris was content with sleeping atop the fluffiest cream-colored bed in the world. The spike in the middle of Lucario’s chest meant that he had to rest carefully around his partner’s torso, but that was fine too. The couch was completely destroyed, so this was the next best thing to his bed at home. Heck, with as comfy as this was maybe he should just get rid of the bed entirely. Lucario was laid out across the floor, sleeping peacefully on his back and taking up much of the available space. Chris was just small enough to rest on his chest. Lucario had even placed both hands atop the trainer’s back, covering his whole torso easily with those mitts like he was protecting a stuffed animal. The only thing that still concerned Chris, as he tried to fall asleep, was figuring out what to do with Lucario’s new height. Could he still battle? Maybe. What if he kept getting horny like earlier in the day? It did seem his Pokemon’s libido had shot through the roof immediately after the fact. Once everyone was shooed out of the Pokemon Center, he even had to help Lucario get off yet again. That thick, red dick seemed to have a mind of its own, almost constantly erect now… Just as he was about to pass out something wet and slippery slid up along Chris’s front, right underneath him. He immediately woke up as he realized just what it was, but there was nothing he could do. He was pinned down by his partner’s arms, held close to that throbbing, warm, lengthening canine dick. His whole lower body could feel each pulse through the flesh of his member, in time with Lucario’s heartbeat. Up further the fighting type groaned, his face blushing lightly. He was obviously having some very good dreams. And in the morning, Chris was left with quite the mess to clean up through the whole Center.