[Sluttification]

"That'll teach ya to try and fight a Pro Hero! Hah!"

The loud and proud cry that resounded throughout the alleyway came from one Mirko, alias Usagiyama Rumi, who had just made a complete mess of some trashy villains that had tried to ambush her during the broad daylight. "Seriously, what did you expect to happen? Did you think I'd bow down before you, naked and apologizing for how stupid I've been? What kind of trashy porn have you been reading?" She smirked as she lightly kicked one of the mooks, far too proud of herself to be taken seriously.

"Thank you so much, Miss Hero!" A young man cried out as he ran over to her, having hidden behind some of the objects in the alley as he noticed that the fight had broken out. "If not for you, I would've been kidnapped by these big bad villains! I'm so glad a Hero came by to help!" His eyes beamed as he smiled from ear to ear, seemingly as happy as could be.

Mirko gave a thumbs up to the kid as she ruffled his hair. "Well, you're very welcome, kiddo! I didn't even notice you there, so I'm kind of surprised I even saved somebody. But, when you're a hero as cool as me, that just kind of happens, doesn't it?" She giggled, and the boy giggled along in turn...

Something about the boy felt just a little off, however. He was a bit bigger than the types of kids that she usually saved, and the alley was a one-way deal, so how'd he get stuck? She hadn't seen him behind those thugs when she tried to beat them up, so... How'd he get back there?

"Hey, kiddo? How'd you get stuck behind them? How'd you get in this alley in the first place? I didn't see you back there when they tried ambushing me, so..." She started airing out her suspicions, feeling more than a little perplexed...

Only to suddenly feel her strength leaving her, as the boy touched his arm as well as hers. "Man, you're actually pretty clever for a bunny, aren't you, Miss Hero?" He continued to smile as his arms suddenly grew thicker, brimming with strength. "But you're not really that smart, otherwise you would've noticed me from the start. What a silly slut you are."

"S-Silly slut? Hold on, you're no good-hearted kiddo, you're a Villain!" It didn't take a genius to figure things out, as Mirko tried to jump back... Only to feel that her legs weren't moving at all, thanks to the boy having a firm grip on her arm. "Hey! Let go!" She shouted in his direction as she tried to yank her arm away, only to find that she didn't have any strength to achieve that act.

The boy kept on smiling as he reached down to her legs, tapping the side of them. In an instant, her thighs grew wider, and in turn, she felt a little weird up above. Her thoughts were growing slower, and each of them grew a little... dumber? Was that the right word? She felt slower, and she felt less smart, so it had to be true.

"W-What did you just do..." Mirko asked as she slowly stopped struggling, not really finding a point to it any longer thanks to the stupidity inside of her head. "And why are my thighs all tingly..." She continued, slowly rubbing her thickened thighs together...

He laughed at her predicament as he let go of her arm, feeling more than satisfied with how she was turning out. "I just swapped a bit of your intelligence for a pair of super thick and sensitive thighs! Aren't I nice?" He chimed, as he started rubbing his hands up against those wonderful thighs. "Good grief, I've been waiting to have a round with you ever since I saw you on TV. I bet you're a great fuck, Miss Hero! I can't wait to see what the news are gonna say when they find out that Switcheroo's claimed another slut!"

"Switcheroo... I know that name... You did something bad to Mount Lady last week..." The Rabbit Hero muttered in a slurred fashion as she tried to think straight, but that didn't help. She slowly started sitting down, pressing her fat ass against her feet as she tried to concentrate as hard as she could...

But that lowered height made it easier for Switcheroo to put his hand on her head, swapping more of her intelligence for something else. Something heavier. Bouncier. Full of life and a symbol of her femininity. It took a few seconds before Mirko realized that he had swapped her smarties for a pair of bigger breasts, as they started dragging her head downward, making almost bow down before the young Villain... "Heavy..."

"Having tits and thighs for brains does that to you! Good thing I helped you figure that out. Aren't I the nicest, Miss Hero?" The Villain boy continued to chime in an obnoxiously cheery fashion as he squeezed into both her thigh and her tit. "Good grief, I can't wait to stick my meat between these things. It's going to feel so good to have all of that weight pushing down on my cock, hehe..." He mused aloud, only to notice the dull and almost stupid look in the heroine's eyes. "Actually... Hey, Miss Hero? Can't you show how grateful you are for having me show you that you're a dummy with thighs and tits for brains?"

Mirko took a few moments to process what was asked of her, drooling just a little as it was a bit hard to think. To compensate, the Villain slapped the side of her cheek as he gave her a little bit of her brainpower back, though this time it was corroded by his innate perversion. A side effect of his power. Everything he swapped would naturally be perverse, regardless of his intentions behind the swap. Not that he cared that much when he was as horny as a boy could be. "Right! Sorry, Master! I'll show you how sorry I am!"

The Rabbit Hero giggled like a total dummy as her eyes turned into multicolored swirls, showing how thoroughly she had been pushed under the boy's power. She immediately stripped off her tight leotard and neatly folded it into a single sheet of clothing. She did the same with the rest of her outfit, carefully lining it up by her side until she was completely and utterly naked, after which she bowed her head down so far that her forehead was pushing against the ground. Only then did she open her stupid mouth to apologize. "Mirko's really sorry for being a stupid slut who's got tits and thighs for brains! If Master'll forgive Mirko, she'll make Master super happy and make sure his dick's as wet and as slick as it ever could be!"

"That's more like it, now you're only a little stupid!" Switcheroo laughed as he grabbed ahold of one of her rabbit ears, tugging on it slightly to see how stretchy it was. Once he realized it was her actual ear, he quickly grew excited. He hadn't ever fucked an ear this big! "Okay then, let's see how smart you'll stay once I've fucked your brain loose!"

Before Mirko even got a chance to think straight again, she felt a massive cock ramming its way into her head. She could feel her tiny brain, which had shrunk thanks to his switching powers, bouncing all around every time he thrust his rod inward. It was like he was playing a game of pinball with her thinking-bean, and his cock was the paddles smacking it all over the place. He just kept on smashing inward, not even caring about the potential side effects.

"God, you're so tight. Even Mount Lady wasn't tight, she was just some used-up slut. You're like a virgin with how tight you are, Miss Hero!" Even as he was turning her potentially stupid for her entire life as his pillar slapped up against her vulnerable brain, he was still being mockingly polite. Which just made the juice that had started to pour out from between her thighs intensify, making quite the wide pool at her feet. She was a real stupid slut, after all, so it made sense for her to make such a mess. It was only natural!

The Rabbit Hero giggled and drooled a proverbial waterfall's worth of saliva as she kept having her ear rammed into. It was like the best sex she ever had, and she loved every second of it! If she could get even more, she'd be happier! But she was satisfied just being used as a toy by her Master, so it was all good. She just wished he could fuck her more directly since her head was a little too empty to be a good hole.

Eventually, he pulled his cock out of her ear, though not before dumping a good dollops worth of his cum into her and letting her brain utterly soak inside of the baby batter that was his seed. "Aaah... Well, how're you feeling now, Miss Hero? Are you a stupid slut, or are you a Super Stupid Slut?" He chimed as he wiped the juice from her brain off his rod using her shoulder, licking his lips as he got a good view of her ass.

"Super Stupid Slut, Master! Mirko can't think of anything but cock and Master's cum! Can Mirko have seconds? Please? Mirko's really hot down below..." She begged, her head pushing back down against the floor as she made her little plea. Not that she was going to get it just by asking nicely, he had to be in the mood for her holes.

And thankfully, he was, as he slowly wrapped his arms under her armpits, putting her in a full nelson as he pushed the tip of his rod up against her rear. "Well! Since you've fallen so quickly, Miss Hero, I think it's appropriate for me to fill you up! Aren't I nice?" Switcheroo laughed as he didn't wait for an answer, preferring to just hilt his powerful masculinity straight into her ass, smashing it as deep inside as it could possibly go without even accounting for how he'd have to stretch her to accommodate for his manhood.

It took but an instant for the cum-brained slut to cum all over, her juices leaking out of her ears as they gradually turned pink from the brain matter mixing in with the seed that had been dumped inside. Her pussy wasn't far behind either, as a generous amount of juice squirted right onto the floor below, joining the existing pool as it grew wider and deeper. She couldn't do much else except giggle, drool and moan like a crazed slut, happy to just be used by a loving Master.

He did enjoy how tight she was, evident by how intense he pistoned into her. He really hadn't felt anybody as tight as her before, so he was a little sad that she wasn't going to be as tight ever again. He could just swap her tightness for somebody else, but that'd be too boring, so instead, he settled for making the best of what he had at the time.

With every thrust, the stupid bunny's face grew equally stupider. Her eyes bounced around like pinballs, her drool was turning into an actual waterfall due to how quickly it was falling out from the bottom of her mouth, and her smile was downright insane with how wide it was. She was utterly broken, and he had only had her for a few minutes! She was a natural born slut, and she'd be perfect on the streets once he'd discard her.

Once he felt his cock trembling, indicating that his time was about to be up, he just shoved it deep enough inside that the tip started pushing out against her stomach. Moments later, a proverbial gallon's worth of cum fired off into her stomach, bloating it up to the point where she looked pregnant, and her mind continued to leak out of her ears in the process, the pink seed-like substance joining the puddle on the ground.

Switcheroo laughed as he felt the contents of his balls emptying out inside of her, prompting him to let go of the slut in his arms as he pulled out of her, making her collapse into her own juices. "Well, that was a fun little time, wasn't it, Miss Slut?" He chimed, but he only got a squirt from her pussy in return. "Well, if you're going to be rude about it, how about..." He muttered as he pulled out a nice little pen, writing "FREE USE" in bold letters on her thickened ass and thighs. "There we are! That should show you for being rude!"

Now that he was satisfied with his work, the villainous boy pulled the stupid slut up and gently slapped her face to make her open her eyes. "Okay then, Miss Hero. I've got a little job for you now that you're as dumb as rocks. How about you go out and fuck as many guys as you can see? That'll really prove that you're the best Hero!" He fed her the worst lie of all, knowing she'd take it as absolute truth.

"Okay, Master! Mirko's gonna go be a slut now!" Mirko chimed happily, not even properly awake up above as a pair of cartoonish birds could almost be seen twirling around her head. She waved goodbye as she walked out of the alleyway, juices and cum still dribbling out of her pussy and her ass respectively. She didn't care that people were going to see her at her worst when she had a job to do!

Switcheroo laughed as he walked into the darkness, already planning his next target. Mirko had been a fun girl to break, but there were so many more that he could ruin, both from the Pro scene and the new Heroes on the block! Who could be fun to mess with? Who could make him the horniest? Who could be the dumbest? And what could he swap them with?

The world wouldn't know until he was done with them...