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Celebrating the Brain-Boy

For Leon_Therma

By Draconicon

Some parents would have thought that their little ones grew up too fast, that they didn't get enough time with their children before the new adults went out in the world to be themselves. They didn't have to deal with baby Metroids growing up and doing their things, nor the various life-cycles that came about during their rapid maturation. Leon, on the other hand, had, and while he was definitely very fond of Cerebellum - as he'd come to call the Metroid that Ridley had found and who had attached to him quite quickly - he was also very eager to see the young man make his way in the world without causing quite so much chaos as he had been.

The Hoenn Typhlosion flopped out on his couch, groaning as he rubbed his hands down his face. Just thinking about what had happened during the Gamma phase was enough to send shivers down his spine. The number of humped pieces of furniture, the hormones running wild, the number of times that he'd had to go running down portals that Palkia had left open to pull Cerebellum back before he caused infinite levels of chaos...God, he was tired.

Yet, at the same time, he couldn't help but feel a small hint of pride in the little guy. Big guy. Whatever size he actually was at the moment.

How did this happen over barely a month...

That was the question that Leon still couldn't answer. Yeah, technically, he understood. The Metroids evolved and changed quickly, growing up faster than any other species besides some earth insects, but it was something that was so different to his experience and biology that it was still awe-inspiring in its own way...even if it did come with all kinds of annoyances along the way.

Leon shifted back and forth on the couch, hearing a crunch under one of the cushions. That would have been one of Cerebellum's shed skins, probably from going from Alpha stage to Gamma. He'd been under the furniture all the time, always making it that much more difficult to actually find him. Hide and seek, hide and seek, until it was time for the little guy to come lunging out to play with his Daddy without any warning.

He might have complained if it wasn't for the fact that Cerebellum was as perverted as he was. He didn't know where the Metroid got it from. It wasn't as if he had the chance to teach him how to be perverted. It just seemed to happen. He'd grown up getting more and more cock-hungry, and more and more perverted.

Leon looked around the living room. There were no stains on the wall now, but that was because he'd gone through and scorched them off after the amount of fun that they'd had over the last couple of weeks.

Jesus, if child services was a thing...

Though, of course, he'd argue that there was no way that you could consider a Metroid a child at any of its stages of life. Even at the 'baby' stage, it was completely mature, willing and able to do all kinds of things, and it was completely conscious of what it was doing, too. He'd been sucked off by the little guy so many times before they were able to move on to other things, and as soon as that was an option, Cerebellum had leaped into it. The boy was a slut. A mega-Metroid slut.

"Heh...but would I want him to be anything else?"

Leon folded his hands behind his head, extending his legs out and cracking his toes one by one. It was hard to believe that a month had already gone by and little Cerebellum had grown from little baby Metroid through all the various phases, from Alpha all the way to Zeta. He wondered if the little guy would go all the way to Omega.

That would be a handful and a half.

Shaking his head, he closed his eyes, thinking back to that first time that they had done something other than oral.

_"Come on, Daddy, I can take it. I see you give it to that mongoose, and you keep finding dragons to fuck, and - and you keep doing it to Ridley. I wanna feel it, too."

Cerebellum floated back and forth in front of him, something that the little guy was starting to have trouble doing considering his new mass and the legs that were throwing him off. The shift from little baby Metroid to Alpha stage had meant that Cerebellum had more to carry, and it was harder for him to stop precisely. Hadn't stopped him from doing all kinds of other things, though, and even now, he clicked his mandibles together in a very hungry way, as he had always done when Leon didn't bother to cover up around him.

Which was always, to be fair. Nudity was more fun.

"Heh, you sure that you want to feel it back there?" Leon asked, nodding towards the floating bug's backside. "It's bigger than it looks."_

"Come on, daddy. You think I don't know how big it is?"

"I think that you're measuring with your mouth, and you don't know how much of a stretch the rest is gonna be."

"Come on. I can take it. Lemme feel it..."

Leon shook his head. The little guy had always been an oral slut, a fiend for it. There had been a two day period when they got back that Cerebellum had been sucking at him constantly, dancing around the edge of his sheath and pushing him to get hard as often as possible. The moment that the tip of his cock poked out, the little Metroid had leaped for it, floating over him and sucking it right into that gooey inside, pulsing and swirling around the head of his cock. It was a hell of a sensation, and one that he had really enjoyed.

But the fact that the little guy wanted to go further honestly surprised him. Usually, his sluts needed a push, a bit of control, to actually want to take his cock up their asses. It wasn't the longest, admittedly, even in his Typhlosion form, but it was certainly thick. Thick enough to leave a mark behind.

He reached down, and the floating, bouncing, shimmering Alpha Metroid somehow seemed to glow that much more. Leon shook his head as he fondled his sheath.

"You sure that you want this? Once I start, I'm not stopping."

"Daddy, that's exactly what I want."

"You're going to learn how to take it hard, you realize that?"

"God, yes."

"...Just how much porn have you been watching when I've been sleeping?"

The Metroid blushed, and he knew that the answer was probably 'a lot.' He chuckled, shaking his head as he pushed down on the sides of his sheath, slowly allowing his shaft the freedom to rise out.

"Alright, alright. You'll get it. This time. But next time, we're going to talk about it first. Don't want to hurt my precious little brain-boy, huh?"

"Oh, it won't hurt."

"You say that now..."

Cerebellum wasn't listening in the slightest. The little guy was getting what he wanted, and he had already turned around to offer his other end. Shaking his head, Leon fumbled around until he found a hole. Not much of one, certainly not loose and wide like Cerebellum's mouth was, but it would work.

He slowly pushed forward, letting the warm tip of his cock get used to the slightly chitinous body around the hole. He groaned under his breath, already feeling that pucker flexing, spreading slightly.

Then, suddenly, the tip popped in. He hissed under his breath, feeling just how tight it was inside, and Cerebellum stiffened up. Nervous mouth clacks followed.

"You okay?" Leon asked.

"Mmmph...bigger...bigger than I thought."

"I told you, heh."

"Mmmph...but...but good..."

"Want me to keep going?"

"Mmmph...oh, yeah..."

Not that he had planned on stopping, but he was still supposed to be a father, and he would go with what the boy was comfortable with. He slowly worked himself further in, feeling the strain and tension around his shaft, the tightness of that 'pucker' pulling on him. He was pretty sure that it wasn't actually an asshole, but for their purposes, it worked out to the same sort of thing.

It took about thirty seconds to get all the way in, and even then, he didn't feel Cerebellum actually loosening up. The size difference was definitely a thing; the little guy was half his height, and the fact that his new body was still fairly malleable was probably the only thing allowing Leon to get his cock this far in. He held himself there, letting himself catch his breath at the entrance, feeling the tightening, the clenching, the squeezing, the milking.

Oh, the milking was surprisingly good. Those inner walls were flexible, pulling at his cock, and then -

Zap.

He blinked at the little shock that ran up and down his cock. It wasn't unpleasant, but he had forgotten about that little ability of the younger Metroids. They had some electric powers, and that one had just been used to tease his cock. He smirked, running a claw down Cerebellum's spine.

"What was that, little guy?"

"Uh...um..."

"You want me to cum that fast?"

"Well, um...I want you to cum..."

"Heh...not like that...not yet."

But if that was how they were going to play it, he was happy to play. He rolled his head one way, then the other, cracking his neck as he rested his hands on the little guy's float-bubble, holding him around the middle and pulling him forward. The sucking feeling around his cock was perfect, but so was the feeling of shoving it right back in just as he reached the head of his shaft.

Squelch.

"Mmmph..."

Cerebellum moaned, alright. Leon didn't know if Metroids had the equivalent of a prostate gland to make anal feel particularly good, but at that moment, he didn't care. His son wanted to get butt-fucked? He was going to get butt-fucked.

In, out, in, out, slowly increasing his speed as he worked himself up. In, out, in, out, and soon Cerebellum was getting into it, too, pushing back, floating in rhythm to the thrusts.

"That's it, son...that's it..."

"Mmmph...oh, Daddy...fuck...so hot...and big..."

He knew that most of that dialogue had to come from the porn films that the Metroid had been watching without his permission, but he didn't mind. That was part of the fun. And as cheesy as it was, it still got him hard.

He kept thrusting away, panting, leaning forward. The hard-body back of the little guy made for a good support, and his hips bucked away, his balls swinging just under his sheath, bumping and bouncing against the floaty-ball just under the pupa body. In, out, in, out, feeling the cooler air starting to warm from his own natural flames. He growled under his breath, biting back on the urge to bite down, knowing that he could actually damage his son.

Soon, he was fucking away, rutting that little hole, in and out, in and out, always feeling it sucking him right back in. Those little shocks continued to ripple up and down his cock, dragging his attention back to it, reminding him of just how much his boy wanted him to cum inside.

Not long now. Not long now.

He humped away, his eyes closed tightly as he savored the feeling of that tight hole. In, out, in, out, feeling it clenching and squeezing around him, that tightness only getting stronger rather than weakening and loosening. This little guy was going to take it, and he was going to take it but good.

Finally, he gave in. With a deep moan, he came, and he felt a low-level spasm running through his son's body at the same time. The Metroid moaned, too, shimmering slightly, and he wondered if his seed had just kickstarted an orgasm for the smaller guy.

"Ha...ha..."

"Mmmph...Daddy..."

"Good?"

"So, so good."

"Heh...we'll have to do that again."

"Please!"

Leon opened his eyes, staring up at the ceiling as he stepped out of the memory. It had been a rather intense one, though hardly the most intense thing that he and Cerebellum had done with each other. They liked the fun that they had together, and once they realized that the size difference wasn't such an obstacle, they started doing all kinds of things besides oral.

The Typhlosion smiled, remembering how they had explored each other. It was made all the more interesting with the various evolutions that Cerebellum went through, because it meant that Leon had a whole new body to explore every so often, and it meant that the Metroid had to get used to exploring him with a whole different size.

He remembered how they had gone from the gentle toe-sucks that the little baby version could do, to the little bites and teases that came from the Alpha size, all the way up to the sort of extreme play that the Gamma could do...particularly as that was when his son finally got a dick.

He chuckled to himself. That had been a day.

He heard a thump further down the 'house', and he knew that was Cerebellum claiming someone else. He'd come to Zeta stage pretty recently, and it made him all kinds of randy. Leon was off-limits for the sort of fun that he was immediately wanting, but there were plenty of others that were more than safe for Cerebellum to go after.

Like Ridley.

The mental image of that giant space pterodactyl getting humped by a Zeta Metroid was enough to get Leon's cock all the way up and out of his sheath, and he chuckled as he fondled himself, imagining all the squawking complaints that the asshole pirate was probably giving off. Not that Leon would do anything to save him. The dick deserved all the fucking that he got.

Much as he would have liked going out to watch that happening, he knew for a fact that it would be an interruption for Cerebellum's fun. He would wait for a bit longer, just to let the boy get the worst of it out of his system.

I should really do something for him...

It might have only been a month from the baby hatching to growing to a Zeta, but it felt like something of a lifetime. He felt like he had gone through something momentous with the little guy, and he wanted to mark the occasion, but...

Well, it's not like I can take him to a bar.

And that was what most dads did. That, or strip clubs, and while the latter was a little bit easier to think about, he still doubted that would go that well...

Unless...

Well, there was an option. He hated calling in favors, but this felt like a good time. And it wouldn't be a bad thing to put that guy in his place again, reminding him where he belonged...

Leon smirked. Yes, that would work. When Cerebellum was done with Ridley, they'd head out and see what sort of trouble they could get up to.

Reaching for his cock, he thought back to another bit of fun that they'd had, back when the Gamma evolution had started...

_Cerebellum took a little longer to adjust to being on the ground all the time. Sure, there was still some flight capability, but it had gone from constantly flying to just hovering, and even then with some difficulty. His new body was obviously better suited to staying on the ground, and that bothered him at first.

Until he realized how much easier it was to hold onto his daddy and 'suck' on him.

"Mmm...mmmm..."

Leon groaned as Cerebellum 'sucked' away, using a combination of the e-stim that he'd mastered with a nudging, clicking, grinding action with his mandibles. There was something so roughly stimulating about that, something that should have been rather scary considering the crushing, tearing capabilities of those pieces, but they were somehow more erotic than they were anything else.

He sighed to himself, leaning back against the wall as the Gamma Metroid hugged his legs, wrapping two of its own sets around his lower limbs to keep him 'pinned' while sucking away. The soft shocks around the head of his cock didn't do anything to hurt him, considering his own resistances to most of the elemental attacks, but they were rather pleasant, tingling through his cock and imitating something of a more typical blowjob, but going deeper than that ever could._

"Mmmph...mmm...fuck..."

Leon groaned in pleasure, and he could hear the soft whines and pleasured groans, the hints of frustration from his son coming through from time to time. He knew that Cerebellum really wanted him to cum. Hell, the kid loved making him cum, and had gotten a little used to how easy it was when they were doing anal. Leon had held back on the whole high-stamina thing to give the kid a boost of self-esteem before, but now...

Now, it was time for him to earn that cockiness.

"Come on...come on, Dad...cum for me..."

"Heh...suck harder."

"Nnngh...come on...You gotta be close..."

"Heh, do I gotta be?"

"Mmmph..."

The electric attack redoubled in intensity, and the smaller mouth that actually rested between the mandibles resumed sucking right on the head of his cock. There was a constant lashing of pleasure going on, the sort that hit all kinds of buttons, but Leon leaned his head back and just went with it.

Cerebellum growled, but his son knew better than to try and push for something that he hadn't earned just yet. The first time that he tried that, he'd been knocked down and reminded who the daddy of the pair of them was. Leon was kind, was even loving, but there was only so much pushing that he would tolerate.

Since then, Cerebellum had been working had to earn his dad's loads, pushing himself good and hard to get every drop that he could from that Typhlosion dick, and doing a damn good job of it.

"Mmm...I'm getting there," Leon admitted.

"Mmm..."

"You're going to get a load...soon enough."

"Nnnngh...Dad..."

"Keep sucking."

He rubbed the Gamma Metroid's head, gently encouraging him, and the sucking and zapping and teasing continued apace. He could feel the slow hump-grind with that other cock grinding down against the carpet, the little flicking thing darting out from beneath the Gamma Metroid's body, grinding against the floor, dragging against the carpet. There'd be stains from that, but he didn't care.

He pushed forward, sliding a little more than his head into his son's maw, and the smaller Metroid growled, sucking harder. Leon considered waiting a bit longer - he could hold out for another half hour, at least - but he had other things that needed doing. He could let loose now. His boy had waited long enough.

He relaxed, and his balls jumped. The first shot went hard, and Cerebellum almost gagged. Leon held him in place, and the boy didn't complain. For that matter, his son swallowed all the harder.

Gluk.

Gluk.

Gluk.

Three good cumshots later, he was pulling out, and the Gamma Metroid groaned, growling softly. A few more sparks filled the air before Cerebellum got himself under control again, shaking his head.

"Mmmm...I did good?"

"Did great," Leon said, smiling.

"Thanks, Dad...thanks."

"You want to join me on the couch?"

"Lemme finish first."

Leon nodded, making his way around his son. The soft zappy sounds returned, but this time they were directed as masturbation, a way for Cerebellum to get himself off without having to hump Leon or some of the furniture. It kept the mess down and made sure that neither of them got annoyed at the other.

As he sat down, he listened to the soft zaps, the little groans, and he remembered the times that his son had still been figuring out how to do that, how to put his cock to use, how to actually get off rather than settling for the mental 'gasms that he had enjoyed when he was still an Alpha. There was something so charming and cute about it, in its own way, even before you got to the sexy parts.

It didn't take long before he heard Cerebellum moaning in the background, the Gamma going over the edge. He had probably zapped himself a little too hard and fast for a proper load, but that was fine. As long as he enjoyed himself.

The familiar burrowing-crawling feeling under the couch followed, and Cerebellum pushed up from under the cushions, having crawled in from the back. He settled on the other side of the couch, laying against Leon's legs. The Typhlosion reached over, gently rubbing the Metroid's head.

"Feel better?"

"Yeah."

"Heh...Good boy."

"Thanks, Dad."

"No problem. Next time, we'll talk paws."

"There's more to do besides licking yours?"

"A lot more, heh. A whole lot more."

He opened his eyes to find a load of pre-cum covering his fingers. He'd been jerking it pretty hard to that particular memory, and no surprise. Cerebellum had been an oral fiend before that moment, but that had awoken all kinds of other things that they could do. When he had evolved again, getting hands and a better mouth, the first thing that he did - before he went off on the rampage that he was going through now - was put that mouth to work on Leon's cock.

It was pretty hot, too, though they hadn't had the chance to finish. Again, rampage.

Leon took his hand from his cock before he could blow his load. He wanted to save that for later, when they were out for Cerebellum's birthday. Or, evolution day. Or whatever they wanted to call it. He stood up from the couch, making his way to the door out of the living room. He pulled it open -

"RAAAAAAAWR!"

And the roaring climax of the hump-fest that had been going on hit him like a ton of bricks. Leon braced himself as the entire room rippled from the Zeta Metroid shouting at the top of his lungs, and Ridley yelping and screeching from his guts getting filled to the brim by Metroid cum. The sight was quite the conquest; Cerebellum had completely pinned the big guy, using one huge paw to keep him down, and had gone the extra distance of keeping him pinned with surges of electricity, holding him in place while humping away.

Even from where he stood at the side, Leon could see the huge load that was already oozing from the space pirate's ass, barely held in place with a long shaft. No balls on his Zeta, though. They were all internal, as far as he could tell.

Ridley didn't bother moving after he was seeded, just lying there and panting for breath, but Cerebellum looked like he was gearing up for a second round. Before that could start and rob them of their time together, Leon cleared his throat. The Zeta Metroid paused, slowly turning his head, the much longer, much taller body turning with it.

There was a glaze over those eyes, a hazy sort of thing that implied that his son was still in the grip of his more feral instincts. Leon just held that stare for a few seconds, and the haze disappeared.

"Dad."

"Son."

"...Did I go overboard?"

"Nah, that dick deserved what he was getting."

"Heh...glad I could give it, then."

Cerebellum pulled back slowly, his cock making a warped, slick, slimy sound as he pulled back and out. The messy slime that he had left behind dribbled down, running over the space pirate's ass cheeks and thighs. Leon nodded in approval.

"Hope you have some left."

"Oh? Is today the day I get to fuck my father?" Cerebellum asked with a teasing smile.

"Not even close."

"Awwwww."

"But I am taking you somewhere special."

"More special than this place?" the Metroid asked, gesturing around.

"Much, much more...though in a different way, heh."

He smiled, walking around the broken pirate on the ground to the far wall. Fire danced down his arms as he called on his own power, ripping a hole through time and space. Rather than stepping through it, however, he breathed over his hand, sending a message through the hole, before closing it. It would reach its target soon enough, and if the dragon knew what was good for him, he would listen to the orders.

Cerebellum stomped up behind him. Not aggressively, but rather because it was the only way that the Zeta could walk. He was too big to do anything less aggressive or threatening, and he was still controlling himself well. Leon smiled.

"You're a good boy, Cerebellum."

"Heh, what makes you say that?"

"Just how hard you've worked. And how good you've been."

"I don't think Ridley thinks I'm being good."

"He doesn't count. He's an asshole."

"Sexy asshole."

"Gaping, after what you did," Leon said with a laugh. "But seriously. He doesn't count. I do. You do. And that's all that matters."

"Heh, well, thanks. Where are we going?"

"Well, if a friend of mine does what he's told, you'll see."

They waited for slightly under a minute before a hole ripped through the barriers of space and time again, this time sheathed in black fire rather than orange. On the other side, a massive club opened up, one that stretched out into the distance and had much to see. Caged men that were dancing and showing off their asses, other males that walked down catwalks to grab poles and shake their cocks, and -

Well, on center stage, a large turtle-like figure with a spiked shell was slowly swaying a round, fat ass back and forth, a ringed cock hanging low, showing off his thicc figure.

"Heh, looks like he listened," Leon muttered. "Come on. Time for daddy to take you to your first strip club."

Cerebellum's question of what a strip club was got answered as soon as they stepped through the portal. Leon smiled as he was immediately surrounded by mostly-naked men, mostly Argonians from the most recent game of their ilk. The scaly males, dressed in nothing but bow-ties and speedos, bowed as they greeted him, offering a menu to him and Cerebellum, as well as offering to take them to a table.

"Thank you, boys, that'd be great."

Taken to a table right off the center stage, Leon let his eyes wander around the room. He could make out a bear and bird dancing off in the corner for someone that had eyes for both. One of the cages over them held a limber otter, swaying his rudder tail and flashing his ass for all that had eyes to stare. The center stage still held the king koopa himself and his fat ass, jiggling and bouncing every time that he twerked it up and down, with a side catwalk starring someone that looked almost just like him, just skinnier.

It was a strip club between the universes, where various characters would come to show off, to give a show and get a little cash. Leon loved it, and from the way that Cerebellum looked around, it was clear that the Metroid was getting all kinds of ideas from the various nude men around.

"Heh, enjoying the show?" Leon asked.

"Huh? I - so much..."

Thump. Leon chuckled at the sound of a fat dick hitting the bottom of the table, reaching out with one leg. It didn't take long to find that throbbing shaft, and he pressed his toes against the head, slowly bending it back down, keeping it pointed towards the ground. Cerebellum groaned, hunching his hips forward.

"Easy, easy," he said. "This is going to be a long night. Don't want to spend all that energy in one place, do you?"

"Mmmph...are we just here to...see a show?"

"Why don't you open your menu for the answer to that question?"

Arching a scaly eyebrow, Cerebellum did just that. Leon waited for the gasp, and wasn't disappointed.

He knew the 'menu' of this place inside and out. The front page had drinks and a few appetizers, sure, but the majority of the menu was taken up with people rather than things. More of the pages were taken up with acts that each person was willing to perform for those that were paying for it, the strip club offering a brothel sort of functionality for the right type of clients. Leon was that sort of client, of course, though this wasn't his club.

No, he just banged the owner of this club quite often.

Pity that his scaly ass isn't up for sale...

Shaking his head, he looked back at the stunned Metroid, smiling as he worked his toes up and down his son's cock, giving it the little tease that it needed to keep dripping all over the place. Soon, Cerebellum was panting, nearly drooling.

"You've got $3k tonight, son," Leon said.

"Three...three thousand?"

"Yep. That means that you can do what you want until we have to go...but the minute that you run out of money, that ass is mine."

"...Heh...what's stopping you from taking it earlier?"

"This is your birthday. You should get to do what you want. And then...I get to do what I want."

"...Deal."

They leaned across the table, giving each other a quick hug, but then Cerebellum was right back to the menu. Leon didn't mind. He knew that he'd be getting that ass soon enough. The boy had never been great at keeping control of himself, and he'd blow through that money fast enough.

And then, I get to see what a real Metroid ass is like...

The End

Summary: Leon enjoys the time that he gets with his Metroid 'son', and reminisces over the past pleasures together.

Tags: M/M, Typhlosion. Anthro Typhlosion, Hoenn Typhlosion, Metroid, Gamma Metroid, Zeta Metroid, Alpha Metroid, Father/Son, Adopted Son, Incest, Oral, Anal, Blowjob, E-Stim, Orgasm, Cum, Strip Club,