Krypto the Superdog: Large and in Charge

"How does the Earth look from here, BOY?!" Mechanikat asked with a powerful air of victorious arrogance. "I remember when I first saw the planet from space, like a big... blue ball of yarn. It was at that point I knew... it was my destiny to RULE this planet with an army of robot supercats and bring all the humans to their KNEES!"

"I know." Kevin said in an exhausted, annoyed tone. "Earth looks great from up here. You've done this little speech like five times now."

"You could at least ACT like you're in distress!" Mechanikat replied. "I thought Krypto would have been here by now! He's not usually this late, is he?"

"He has a life outside of fighting crime, you know!"

"What could he POSSIBLY be doing right now? Marking every fire hydrant in the world?"

"He'll get here, and when he does, he's going to stop you."

"I know he'll get here. I left him very detailed instructions on where to FIND us!"

Mechanikat had stepped up his game this time. Over the past few days, he worked hard to locate where Krypto lived, and in an effort to make him engage in a fair fight, kidnapped Kevin as collateral and ferried him off to his space station. In a gross underestimation of Krypto's intelligence, Mechanikat left very detailed instructions on how to find him for their showdown. However, Kevin could see Mechanikat's doubt spelled out clearly on his face.

"You don't think he'll show up, do you?" Kevin asked.

"Well... I mean... he could get lost or... show up at the wrong space station. Yeah!"

"Right, because all of these space stations look alike, right? All of these space stations are shaped EXACTLY like a giant scratching post!"

"You don't know! He could have gotten hit by a passing spaceship! Oh geez! What am I gonna do THEN!?"

Kevin rolled his eyes in exasperation and stared up at the cat-shaped dome of the atrium where Mechanikat was holding him. Mechanikat paced back and forth impatiently. An awkward silence grew between them as they waited. The sense of distress had worn out hours ago. Now Kevin was just bored, locked behind a laser field with nothing else to do other than put his feet up on the walls and twiddle his thumbs.

"So..." Mechanikat said. "See any good movies late-"

There was a heavy boom that suddenly echoed through the space station, followed by the horrible screech of metal. The doorway to the atrium burst open, and in came Krypto the Superdog.

"Sorry it took so long. It's been a busy day today!" he announced. "There was a bridge about to collapse, then I had to stop a bank robbery, and then there was a bridge about to collapse ON a bank... but I'm here now! Now release Kevin, Mechanikat!"

There was a moment of pause between all three of them. Then Mechanikat shook his head and snapped to his usual self.

"You got here just in the nick of time, Superdog! BEHOLD, my greatest creation!"

Mechanikat pushed a conveniently located button, and a giant superlaser rose from the center of the atrium. At the base, there was a red jewel suspended in a forcefield. Both Superdog and Kevin recognized it immediately; Red Kryptonite.

"Harnessing the power of Red Kryptonite, I have created a laser that will turn every human on the planet into a cat lover! The people will refuse to be rescued by a dog, super or no! Your superhero days will be over after today!"

Mechanikat threw his head back in a forced, well-rehearsed evil laugh. Kevin got to his feet with a confused, incredulous look on his face.

"Wait a minute, THAT'S what it does?!" He asked. "Why didn't you use the beam on ME, then? You could have used it on me before he got here and really hit him where it hurt!"

Mechanikat hesitated as the cogs slowly turned in his head as he tried to process the missed opportunity.

"AH DAMMIT!" he shouted out loud. "That would have been so awesome! No matter! I can salvage this! You've got front row seats to the grand opening!"

Mechanikat manipulated the controls to aim the laser through the glass ceiling directly at Earth.

"I only need one shot to turn the entire population of-"

"Superdog!" Kevin hissed as Mechanikat reiterated his entire plan. "Get me out of here! If you can hold open the forcefield, I can try to grab the Red Kryptonite!"

"Got it!" Krypto used his heat vision to block the emitters long enough for Kevin to dive through. Mechanikat was too wrapped up in his narration to notice.

"-and the internet itself will grind to a halt from the endless flood of cat media!" He exclaimed. "Say goodbye to your fame and glory, Superdog!"

He raised his metal paw high into the air before slamming it down on the big red button shaped like a cat's head and labelled "FIRE". The entire contraption hummed to life for a few seconds, but then sputtered like an old jalopy and died.

"What... that's not supposed to-" Mechanikat leaned down to look at the power supply. It wouldn't be the first time there was a failure due to poor connectivity. "HEY, YOU GET AWAY FROM THERE!"

Kevin was trying to wrench the Red Kryptonite out of the containment field with his bare hands, which in hindsight was quite dangerous. However, as he kicked against the base of the raygun, the jewel suddenly popped out, and Kevin went tumbling to the ground with it landing in his lap.

"I got it!" Kevin exclaimed.

"NO! PUT THAT BACK!" Mechanikat protested. "I need that to fire the Meme Beam! SECURITY ROBOCATS!

Hidden doors in the walls opened up, and a fleet of cat-shaped robots came flooding into the atrium.

"Get back the Red Kryptonite!" he commanded. The robocats all swarmed Kevin and Superdog, hissing and spitting at them with digitized voices. Superdog grabbed Kevin by the scruff of his shirt collar and pulled him out of the scrum as they all mobbed them.

"Superdog, we need to take out that laser, just in case he finds another energy source." Kevin said. "I'll distract the robocats while you destroy the laser."

"Alright!"

"Hey, robocats!" Kevin shouted, holding the Red Kryptonite over his head. "Look what I got! Come and get me!"

The robocats took the bait and chased Kevin like a swarm of angry, oversized bees as he ran down the hall out of the atrium. Superdog bowled through the mass of them, knocking them against the walls and the ground to buy Kevin more time.

"Hey Mechanikat, you don't happen to have any blueprints of this thing laying around, do you?" he asked.

"No, I happened to make it after I hit the catnip the other - HEY DON'T BREAK IT!" Mechanikat realized too late Superdog's intentions. Pulling back for extra speed at first, Superdog shot forth like a bullet, slamming his full weight and momentum into the laser cannon. The force caused it to be wrenched out of its foundation and topple to the ground. Gravity and its enormous mass did the rest, causing it all to collapse into a pile of scrap metal and circuitry.

"NO! I don't have any blueprints of that design!"

"Maybe you should start writing them down!" Superdog quipped before speeding off down the hallway Kevin and the army of robocats ran out.

"But I don't have opposable thumbs!" Mechanikat called out after him.

"Hold on, Kev! I'm comin'!" Krypto zipped past the robocats, knocking them all to the side again. The last one, however, charged up laser beams from its eyes and fired at Kevin. Superdog, with his lightning fast reflexes, grabbed Kevin and pulled him away from the beam, but it ended up hitting the Red Kryptonite instead.

The laser resonated with the jewel and let off a powerful pulse of energy like a shockwave. Kevin, Superdog, and all of the robocats were sent flying through the air and colliding against the walls and ceiling before crashing to the ground. Kevin had the wind knocked out of him, but he was otherwise fine. Superdog, on the other hand, was extremely vulnerable to Kryptonite of any kind, and as he tried to get to his feet, it was clear that the energy pulse stripped him of his energy, leaving him even weaker than an ordinary dog.

"Krypto!" Kevin cried out. "Are you okay?!"

"Y-yeah... I'm fine..." Superdog replied. It was very wrong to see him struggle to stand under his own weight. This was the same Superdog that was able to stop a meteor the size of Mt. Everest with his face.

"No, seriously, I'm alright." Superdog insisted on seeing Kevin's worried face. "I'm just a little... winded."

That was strange. Kryptonite was supposed to be deadly to Kryptonians, as Kevin had seen a mere pebble of the stuff bring even Superman to his knees in the past. Red Kryptonite, though while its main threat were its secondary characteristics, it was still dangerous enough to even be around.

The energy pulse that erupted from the Red Kryptonite seemed to have been some kind of EMP field. The robocats were completely immobilized, yet aside from getting thrown like a lawn dart, Kevin was unaffected. Superdog stumbled to his feet and stepped a few feet forward.

"Come on, let's get out of here." he said through heavy breaths. "I'm a little... tired."

Kevin helped Superdog get to the shuttlecraft that Mechanikat ferried him here on. Kevin didn't even have a driver's license, much less a car, but thankfully, the shuttle was fully automated, so all he had to do was type in some coordinates and let the navigation system do the rest.

As the shuttle flew back to earth, Superdog rested his head in Kevin's lap. Kevin stowed the Red Kryptonite away in a sealed compartment where the radiation couldn't hurt Superdog. It took them roughly an hour to return to earth, where they parked the shuttle in the street just outside of Kevin's house. Nobody saw them come home in it, and a week later it was towed away.

After their harrowing adventure in space and their encounter with Mechanikat, Kevin called Superman to give him the Red Kryptonite. Afterwards, he was looking forward to the weekend, relaxing and hanging out with Krypto. He would also have to keep an eye on him to make sure he was alright.

Red Kryptonite's secondary characteristic was that it messed with the powers of Superman and Superdog in unpredictable ways. What was even more disturbing was that it hadn't metastasized yet this time. When Krypto was affected by it in the past, it took effect immediately. Perhaps he was developing an immunity to the effects? It was possible. It wasn't like the Red Kryptonite even made sense in the first place.

Or perhaps its effect this time was that there was no effect? Either way, the very next day, Krypto was up and moving about as if nothing was wrong.

"Hey, Kevin!" he exclaimed, bouncing on Kevin's stomach early the next morning. "I feel like a new dog! Let's go to the park today!"

"Oof! Okay, okay!" Kevin said. "Calm down! What is up with you today?"

"I just feel great! Like nothing could bring me down!"

Kevin moved to sit up, and Krypto went bounding off the bed and ran out of his bedroom in circles. His thundering footsteps could be heard going down the stairs, then coming back up right as Kevin undressed to get in the shower.

"Hey, hey, calm down, Krypto!" he exclaimed right as Krypto was about to barrel into his legs. Krypto's tail was wagging and batting against the wall with such force, it sounded like someone was hammering nails. He followed Kevin to the bathroom, where he laid down outside and watched through the tiny crack in the door as Kevin undressed and got in the shower. He could barely contain his excitement, and his tail continued to make full arcs back and forth on the carpet.

Humans sure liked to bathe a lot. A bath half a year was more than enough for dogs. If humans were meant to be in the water so much, they would have gills.

Kevin came out some twenty minutes later and got dressed. Krypto tailed him and watched as he finished drying out his hair and brushed it straight.

"Okay, come on, boy!" Kevin called as he finished getting dressed. Krypto came bounding up to Kevin when he picked up the dog collar and immediately tried to worm his snout through the loop.

"Easy, Krypto!" he exclaimed as Krypto jumped up on him. "What is up with you today? Did you get in the Folgers again?"

"No, I'm a good boy!" Krypto said. Kevin barely had time to grab onto the other end of the leash before Krypto darted down the stairs. He pulled the leash taut all the way to the front door, and had his nose right up against the crease between the door and the frame. Kevin opened the door slowly, but the instant he could squeeze through, he bolted, and Kevin barely had time to close the door behind them.

When he wasn't wearing the cape and giant not-S on his chest, it was easy to forget that Krypto was no ordinary dog. He pulled Kevin with surprising strength down the street. He had to move his feet quickly to not fall flat on his face, but that was almost unnecessary as Krypto's momentum nearly kept him off the ground.

The park was a couple of miles away, but with Krypto's speed, they made it there in just a few minutes. Kevin's hair was all dishevelled from the wind. He quickly straightened it out with his hands before removing the leash from Krypto's collar.

The park was sparsely populated. There were a few people meandering about, and there was another dog playing with his owner on the other side of the park.

"Come on! Let's go play fetch, Kevin!" Krypto exclaimed.

"Okay. Umm..." Kevin looked around and, with Krypto's help, broke a sizable branch off of a tree.

"You want this Krypto?" Kevin asked, shaking the stick around. Krypto crouched down low on his front paws, butt high in the air and his tail wagging vigorously. "You want the stick? Go get the stick!"

Kevin threw the stick, and Krypto whipped around and chased after it. He caught the stick after the first bounce, then brought it back to Kevin.

"Can I have the stick?" Kevin asked playfully. Krypto let him take the stick, and Kevin teased him with it before throwing it again. Krypto chased it, caught it, and brought it back to Kevin. Kevin went to take it from him, but Krypto pulled back and crouched down eagerly a few feet away from him.

"Give me the stick, Krypto!" Kevin playfully demanded. "Gimme da stick!" He stepped forward, and Krypto ran off with the stick. Kevin chased after him across the park. Even limiting himself to normal dog speed, Krypto was still much faster than Kevin, and he ran far enough ahead of him to whip around and taunt him before taking off again.

"Are we playing fetch or keep-away?" he asked as he chased Krypto for the third time. Suddenly, and without explanation, Krypto stopped and laid the stick down at Kevin's feet.

"Well? Get to throwing it!" Krypto demanded.

"Are you sure you're okay, Krypto?" Kevin asked.

"Of course I'm okay! I'm Superdog! Now hurry up and toss the stick!"

Kevin picked up the stick and threw it again. Krypto gave him a suspicious look, then slowly walked over to pick up the stick. He coolly walked back and gently placed it at Kevin's feet.

"Okay, seriously, what's wrong with you?" Kevin asked.

"Throw. The stick." Krypto said in a tone that sounded impatient and borderline threatening. Kevin picked up the stick again and threw it, but this time, Krypto didn't move a muscle. He just continued to stare at Kevin.

"Uhhh... aren't you gonna go for it?" he asked.

"No. YOU go get it." Krypto demanded. "Now that I think of it, why am I even taking orders from you? I'm Superdog! You should be taking orders from me!"

"Krypto- oof!" Kevin was about to protest, but Krypto body checked him, knocking him to the ground.

"Krypto, what are you doing?!" Kevin asked as he tried to get to his feet, but Krypto stood over him, looking down on him. He seemed to look bigger from here.

"You know, you look a lot better under the ground, beneath me." He said. Kevin scooted backwards to get out from underneath him. As he got to his feet, however, he was shocked to see that Krypto was still a good head and shoulders above him.

"What the-?! How did you get so big all of a sudden!?"

"It must be a growth spurt. How fitting. Now you won't be able to look down on me anymore."

In a sudden burst of insight, Kevin thought back on the events of yesterday, and the burst of energy that emanated from the Red Kryptonite when it was hit with the laser. If that was the cause of Krypto's sudden change in behavior, on top of his spontaneous embiggening, then Kevin would need to get him to a safe environment to get treated before he hurt himself or someone else.

"Hey, Krypto, what say we swing by Superman's place for a bit?" he asked nervously.

"I have a better idea." Without further warning, Krypto lunged at Kevin and grabbed him by the collar of his shirt. He took off into the sky with Kevin in his grip. Kevin closed his eyes and fumbled for Krypto's collar, desperately clutching onto it in case the fabric of his shirt tore.

Flying through the air the way Kevin was - almost completely unsupported by anything - was absolutely terrifying, and he closed his eyes and hoped that his feet would find solid ground again. He could feel Krypto zipping through Metropolis at a speed that caused his stomach to feel like it was sinking into his feet.

The smell of the ocean began to fill Kevin's nostrils. He braved a peek through his eyelids, wondering if Krypto was taking him out to sea. Thankfully, the sight of Metropolis' streets and structures was still some hundreds of feet below him. He swallowed deeply and turned his head up so he wouldn't get vertigo.

Krypto made a sharp descent, and Kevin's legs buckled underneath him as they suddenly found solid ground. He tumbled to the ground in a heap, and Krypto's large, heavy paws landed on the ground around him shortly thereafter.

Kevin looked up to see where Krypto took him. They were inside of an abandoned warehouse, probably close to the docks, judging by the salty smell in the air. Metropolis was lousy with abandoned warehouses these days.

Before he had a chance to stand up, Krypto grabbed Kevin by his clothes again and yanked on them hard to tear through the fabric. Kevin tried to fight back, but there wasn't much you could do when resisting someone with the strength of Superman.

Krypto tore through Kevin's shirt and jeans, leaving him in only his shoes and underwear. Krypto stepped back. There was an unusual glow of red around him, and he was getting larger by the minute. He must have been between eight or ten feet tall at the shoulders by now.

"I am the bigger one, therefore, I am the alpha." he announced. "Do you know how dogs show their dominance?"

Kevin warily shook his head, even though he knew very well what they did. He had the strange opportunity to see his grandmother's dog humping a toy when he was seven, and she described it to him as "establishing dominance". At the time, he didn't know how it established dominance or why dogs felt the need to dominate others, but he could imagine how mortifying it would be.

And now that exact thing was about to happen to him.

Kevin looked down between Krypto's legs and saw his veiny red cock pop out of its protective sheath. A clear, viscous fluid was starting to ooze out of the tip.

"Lick it." He demanded.

"Ew, that's disgusting!" Kevin said, grimacing at the thought. "You pee from th-UNGH!"

Krypto suddenly slapped him with a massive paw, knocking him on his back. It wasn't painful, but it knocked the wind out of him.

"LICK. IT." he repeated more fiercely. Kevin really didn't want to put his mouth anywhere near Krypto's dick, but he decided it was wiser to go along with it, at least until Krypto snapped out of his mood.

He slowly shifted forward until the tip of Krypto's massive dick, which was about the length of his arm and thicker than his thigh at the base, was inches from his face. There was a strong musky scent that emanated from it, and that clear viscous fluid was starting to spurt out in larger amounts.

Kevin grabbed the cock with both hands and gave it a tentative lick across the tip. It had a warm, salty taste to it. Krypto's massive body trembled above him.

"Good. K-keep going." he demanded. Kevin stroked the dick with both hands as he continued to lick the tip, though with its sheer size, he was really doing little more than rubbing the sides like he was petting a... well, a dog. He ran his tongue across more of the length and dipping into the thick meatus briefly. The precum came out in greater amounts. It was the saltiest thing he ever tasted and wanted nothing more than to stop and wash his mouth out with the strongest Listerine he could find, but he soldiered on despite his discomfort.

"Tuuhhh... take it into your mouth." Krypto ordered, breathing heavily as the pleasure built up in his body. Kevin didn't know how he was supposed to take in the cock when it was larger than his head. The best he could do was suck on the first few inches, where the dick tapered. The scent was stronger than ever now, and the more he sucked on Krypto's cock, the more he began to think that it wasn't all that disgusting. In fact, it smelled and tasted kind of good.

"GLLPH!" Kevin gagged and sputtered as a huge wave of warm precum suddenly shot out of the end, filling up his mouth and covering his face and upper body. It felt like he got hit in the face with the contents of a giant egg. It oozed down his body and soaked into his underwear. He drew his head back to wipe it from his eyes and swallow the volume that got in his mouth. The musky scent was now the only thing he could smell and taste. For some reason, his little boy peen was stiff and erect.

"Mmn, you suck dick good. It's almost like you were born to be a bottom bitch." Krypto said. He leaned down, grabbed Kevin's underwear and ripped it off his body. "Now bend over, boy. On your hands and knees."

Kevin got on his hands and knees, trembling a little from the draft he could feel all over his body, but also because he was nervous about what Krypto was about to do to him. He didn't have to think very hard about his situation to know that he was going to get dominated like his grandmother's dog's dragon toy.

Krypto moved behind Kevin and blindly probed at his back door with his dick. The tapered end, slick with precum, managed to slip through his tight virgin sphincter muscle. Once it made the breach, pushing in was almost effortless.

"NNHH!" Kevin grunted as he felt his asshole get forced wide open. The erect shaft slid into him, spreading his rectal muscles far apart. It was an uncomfortable feeling at first, but as the dick was pushing deeper into him, it pressed against something deep inside him that caused a wonderful sensation to surge through his body. His cock and balls tingled with a wonderful electric sensation. His peen bounced with every pulse. Krypto pushed in even deeper, causing Kevin's eyes to roll in the back of his head.

"Mnn, your ass is so tight!" Krypto panted. "Shame I can only get... the tip in!"

Kevin was starting to feel a little dizzy. Whatever it was in the core of his body that Krypto's dick was grinding against felt good. Too good. It enraptured his mind until the only thing he could think about was how good it felt.

Krypto began moving his hips back and forth. Even with the little amount of strength he used, his sheer mass caused Kevin to buck forward from the force. Kevin's butthole was quite sore from being stretched so wide open, even though Krypto only put the tip in so far. Kevin looked down between his legs and saw that his little boy peen was leaking the same clear, viscous fluid that came out of Krypto's dick. The tip was numb, and he could feel something building up in the core of his body; a powerful warmth that threatened to explode!

"Your tight boy ass is going to make me cum!" Krypto panted. His legs on both sides of Kevin's body were trembling again, and the dick was starting to throb in his ass.

Krypto suddenly pushed in even deeper. Kevin was overcome by a strange sensation of his insides getting spread far apart to accomodate the sheer girth of the shaft. His stomach distended from the added volume, and he wondered for a moment whether or not the dick was suddenly going to poke out of his mouth.

The dick pushed in inch by inch until it began to widen out. Kevin noted the grotesque bulge at the base of Krypto's cock was he was licking him earlier. Based on how Krypto continued to apply pressure, it was clear he was trying to get the knot inside him as well! Kevin tried to protest, but the only thing that came out was a strained gurgle.

Somehow, Krypto managed to spread apart Kevin's asshole to the breaking point to pop the knot in. Kevin's eyes widened and he let out a gurgling cry. His asshole was not as stretched now, but his rectum was stretched almost twofold in return. The knot pushed against that sweet spot in the core of his body, sending wonderful electric jolts of sheer bliss from the tip of his dick all the way up his spine. Kevin's eyes were rolled in the back of his head. His vision was full of flickering lights.

Before Kevin could register what happened next, much less brace himself, Krypto let out a loud moan as he blew his load into the boy. The effect on Kevin was like throwing water on an oil fire. That unstable ball of heat in the core of his body exploded. Kevin's body felt tingly and numb, and something gripped at his mind, dampening his thoughts and preventing him from thinking about anything at all. His dick spasmed as it loosed a thin stream of sperm onto the ground.

The dog sperm inside Kevin's ass was warm and slimy. He didn't like how it felt, but strangely enough, the soreness of his asshole felt amazing. After an unknown period of time, Krypto pulled out of Kevin's ass. It was like uncorking a champagne bottle. A gout of jizz squirted out of his ass onto the ground. In the aftermath of his orgasm, Kevin's limbs felt heavy and weak, and they gave out underneath him. His dick continued to spasm before slowly going limp.

Exhaustion began to quickly take over, a kind of exhaustion that he only ever experienced after a gruelling PE class. As his vision began to darken, he could see Krypto lay down next to him, staring at him with a focused look.

• * *

Kevin felt hot, cold, numb and sore in different parts of his body all at the same time as he came to. The ground felt strangely soft, and it felt like there was a weight over him, but at least it was no longer drafty in here.

Kevin's mind slowly came into focus, and he realized that he was no longer in the warehouse. He was back at home, under the sheets in his own bed. It was nighttime outside. His skin felt weird in certain places, mainly around his butt where Krypto sprayed him with his cum. He felt like he needed a shower.

He tried to lift himself up, but then he realized that there was a body laying on top of him!

"Krypto? Come on, get up!" He grunted.

"Oh good, you're okay." Krypto said, moving off of him. He had returned to normal size at some point.

"Why the hell did you do that, Krypto?!" Kevin exclaimed, rolling over onto his back..

"I'm sorry. I don't know what came over me." Krypto said, laying his head down on Kevin's chest. "I think it was that Red Kryptonite that did it."

"Yeah, I figured that out at the time before you..."

"It's a good thing I didn't hurt you, though."

Kevin and Krypto stared at each other for a while. Krypto gave a small whine and shifted up a few inches to lick Kevin in the face. Kevin smiled and patted him on the head.

"Ahh, I can't stay mad at you." he said. "Just, you know, please ask nicely next time."

"Next time? Do you want to do it to do it again?" Krypto asked, his ears perking up.

Kevin looked at the door to his room, which was closed, and then rolled over and lifted his lower half by his knees with his head still resting on the pillow. He wiggled his butt temptingly at Krypto.

"Y-yeah. I want to feel that knot inside me again!"