[Fusion, Corruption, Role Reversal, Futanari]

Nighttime had fallen. And all the good boys and girls should be asleep. Unfortunately, there just happened to be a bad girl that didn't want to sleep, no matter how hard her good side tried to.

The bad girl in question was the bad side of a girl named Irowa Yukino. A girl that had been abandoned by her original Magical Girl friends as they one by one fell to their own vices and were corrupted. Not that she was much better at this point, thanks to the rod between her thighs and the aforementioned bad side. Thanks to how she had indulged in her growth, another erotic ego had taken form, one that she aptly dubbed Erowa. And Erowa was the one that didn't want to go to sleep.

Erowa stretched in bed, giggling as she felt the soft snores of her other half echoing out inside her mind. Since Irowa was fast asleep, she had a lot of options on her table. Lots and lots of fun little ideas she could carry out. But a good amount of those ideas would leave her identifiable by the general public, and that meant that she'd be causing problems for her other half. And as much as she wanted be a tricky and horny little gremlin, causing an excess of problems for Irowa and her friends was something she didn't enjoy.

"What to do, what to do..." Erowa said, twirling in front of the mirror as she transformed into her Magical Girl self, a girl that barely wore anything except for a loose sundress that covered up just enough to avoid leaving her junk hanging out in the open while at the same time highlighting her black hair with a deep shade of intimate red. She didn't look like much when she was transformed, but she was a dangerous entity and experience. Especially if she put her powers to good use...

Now, there were a few ideas that drifted through her mind. She could go into one of her fellow girls' rooms and start to play with them. Whether it was the muscled perfectionist that could easily be driven into a lustful haze with how she worked out, or the locking girl who was otherwise so unassuming. She could also go for the friend that had started to build a career as an idol, orrrrr...

Oh who was she kidding. She knew exactly who she wanted to mess with the moment she got control of this body. The only girl who had been aggressively trying to push her away. Sure, the girl who locked her inner desires away a bit also tried to push her away, but nobody was as succesful at doing so as the girl who had an affinity for dreams. And if there was one thing that Erowa wanted right now...

It was a sweet, sweet dream of having her fall into pleasure...

---

Shinobu Satou, the Magical Girl of Dreams, was quietly laying on her bed. It had been an extremely long day for her. Not because there were any sort of dangers that she had to solve. But because of her budding relationship with a bunch of gyaru that wanted to see her prettied up, she had more than enough on her plate. Right now she just wanted to rest away and get the chance to relax and not worry about anything. She just wanted to use her powers to have a nice dream and then just sleep like a rock until the morning dawn.

And that desire to sleep without worrying about anything led to her being utterly unaware of anything getting close to her as she quietly snored. She didn't notice the sound of the creaking floorboards, nor did she notice the faint smell of something erotic wafting through the air. She had already started to fall into a deep and unbreakable sleep...

Which was easy for Erowa to break. All she needed was a little time alone with the girl, and then it wouldn't be hard to shatter her out of that dream. But why would she break her from her dream when she could instead taint that dream and taint the girl by association? Since Shinobu had tried to brush her away so much in the past, she was totally in the right to do this to her. That's what her twisted logic told her, at any rate.

A byproduct of Shinobu's power as the Magical Girl of Dreams meant that her dreams started to visibly drift over her head. So that if she ever needed to change them if she was in a semi-lucid state, she could just grab it and shake it around. Not the most graceful way of applying her powers, but when she was half asleep it would do the trick. But it also happened to make her dreams so vulnerable.

Erowa pulled up the hem of her dress to reveal her rather striking and rather erect shaft, the grey-tinted thing throbbing as she carefully held it right over one of those drifting dreams. Instead of bothering to cum straight into it and pop that dream with one explosive climax, she instead preferred to let her cum drool out of her tip and then let it all pour down into the dream.

It felt really good to temper herself like this. In fact, she had gotten really good at keeping her cum pouring out at a steady pace thanks to one of the previous incidents she had been a part of. Even if she didn't want to think too much about that experience thanks to how much she had been pent up during it.

But now she could just let loose. Let her cum drooool down on those lovely dreams. Those tender and naive dreams that didn't have a single smidge of perversion inside them. With her cum drooling little by little, the changes were equally incremental. So incremental that even somebody that was naturally on guard at all times and tried to avoid her influence like the plague wouldn't be able to notice until it was far too late...

Shinobu twisted and turned in her bed. All of her dreams getting a healthy heaping of horny glaze thanks to Erowa's cum pouring down onto them was starting to get to her. Dreams of going out with her friends were gradually turning into dreams where they were all nearly naked, streaking without a care. Dreams of her playing games with her friends resulted in her winning most of them and getting a handsome reward from the girls that had lost. All of the dreams followed that sort of pattern of her slowly but surely growing more dominant as her friends grew more and more exposed.

To make matters worse, she was definitely aware that something bad was happening. She was absolutely able to discern who had been behind this, because there's only one person who would go through this much effort to try and corrupt her. And it wasn't like she had any real way of stopping it, because it actually felt too good for her to give up on. The only way she'd end up breaking free from these horny dreams would be if somebody actively broke her out.

And Erowa wouldn't be that girl, even as she finally stopped glazing those dreams and instead climbed into bed with the girl that happened to be sleeping like an overly curvy rock. "Oh, Shinobu. You silly girl. You thought you could try to contain me and make your moves on Irowa. Too bad she's really fallen for you... And that means I want you so much more than I did before." The black-haired red-highlighted girl sighed sweetly as she admitted her own deeper feelings, before pressing herself down on that girl...

Shinobu could hear the slick sounds of something thrusting. Not into her, but very close to her. And if she wasn't busy being trapped inside her mind, she could see her friend's worse half pushing her cock in and out of the gap between her thighs. It was such a tight gap that she would have an easy time widening if she was just able to control herself. But as her dreams started to shift towards more and more intimate situations, like the one in front of her, it was getting harder to avoid her rising arousal...

"You're so tight, even before I get to the sweetest spot!" Erowa cried out, knowing that the girl beneath her wouldn't wake up despite how loud she was. That sticky glaze she had poured onto her dreams made sure of it. "So, so tight. And here I thought Irowa had good thighs from how much she had been running, I could... Nnnfhhhh!"

Before she finished teasing the sleeping girl over the fact that her thighs were just perfect, she thrust her hips forward and let her cum bubble forward before shooting that sticky substance straight into the covers. It felt way too good for her. Maybe she should try and reel things back so she wouldn't end up tipping herself a bit too far into the pleasure. After all, she was supposed to be in control. It wouldn't be good if she started being the one being taken advantage of.

Unfortunately for Erowa, that's exactly what happened. Because the moment she tried to pull her cock back and try to take a breather after her little orgasm, those thighs suddenly clamped down on her cock and caused her to let out a loud and very submissive moan compared to all the other noises that she had been letting out. How was that even possible? That girl should be trapped within her dreams!

Shinobu was indeed trapped. Or at least, that's what it seemed like. But the more Erowa was pushing herself onto the girl, the more those dreams were pushing the girl into being the dominant. More and more, twisting her to make her fit the dominant needs of her friends in the dreams. And she was more than happy to indulge, which was how her body had seemingly moved on its own accord.

She... She really did enjoy the sight of all her friends needing her. Something about it awoke a brand new fire inside her. Especially when she saw that submissive look not only on Irowa's face, but on Erowa's as well. Both sides of that girl wanted her to dominate them. And she would give them everything they wanted, milking them both dry with ease.

The desire to milk them merged together with all the cum that had been poured into the dreams, causing them to shatter and pop as Erowa's grip on the dreams disappeared completely, leading to the sleepy girl's eyes opening and a keen look of lust to work its way onto her face. This would be the point where one could easily identify that they had completely and utterly messed up, considering the usual sweet look on Shinobu's face.

But did that stop Erowa from enjoying the look in her eyes? Of course not. Could she pry herself free when she got a chance to look upon that face that just oozed dominance? Also no, because why would somebody that dominant ever think of trying to let go of her cock?

"You really are the worst, Erowa." Shinobu said with a tinge of arousal to her words, all while she put her hands on the girl's cheeks. "I told you time and time again that you should let Irowa stay in charge. I told you that she's the one I like. And yet you keep trying. You keep trying to push the boundary of what's acceptable. And now you came in and drooled cum all over my dreams. You know what I do to girls like you who don't listen? Because I'm sure you know exactly what happens, and there's no way I'm about to let you try and escape after everything you've done." She wasn't normally this persuasive with her words... But the sound of her voice and the way she goaded the girl into being obedient was enough to make Erowa squirt a little before she even had the chance to respond.

Erowa had a bit of trouble figuring out just what she could say that could make the girl in front of her relax and not dominate her. Much like she had trouble actively deciding if she wanted to do that. Because her hips were certainly making it difficult. It felt really good to just thrust in between those thighs. It felt so good that she was on the verge of cumming again...

And she did, once those thighs squeezed down on her shaft yet again. The pressure was too much for her, so much so that she collapsed right on the dominant girl's bosom as her cock drooled out more of the precious sticky juice that it wanted to squirt out again and again and again. She was addicted to this kind of teasing. She was addicted to having her cock bullied like this. But most importantly...

"Sh-Shinobuuuu..." Erowa muttered as she slowly pulled herself up ever slightly, her eyes filled with hearts. She was addicted to the dominant herself. She wanted more. She wanted so much more, her hands trembling as they came closer and closer to her face. Not only did she want her, but she wanted to be part of her. As Magical Girls, they had the ability to merge and become one whether one or the other actively wanted this. So if she had control over this merger, if she could keep some level of dominance over the end result, she could have the chance to reel this back in.

She didn't get the chance. Not when Shinobu grabbed Erowa's wrists and smiled down at her with a look of lustful cruelty in her eyes. "Ssssh. You don't need to say a thing. I know exactly what you want." She said, because she knew. There was no way that she wouldn't be able to know. Not after they had gotten to know each other so intimately in the past. Erowa was essentially her dear Irowa's lustful instincts unrestrained. And if a fusion with her was what she wanted...

Then she'd give her exactly that. Letting her lips meet Erowa's as a light started to pour out between them. A light that consumed everything around them for but a moment. While a dance between two Magical Girls was preferred to serve as the medium for their fusion, it wasn't a requirement. Especially not when one of those very same Magical Girls was currently sexually dominating the other. That was more than enough to serve as a conduit.

Muffled moans upon muffled moans echoed from the orb of light that was filling Shinobu's room. Slowly but surely climbing up the ladder of arousal as Erowa came closer and closer to cumming. She wasn't even moving, it was just the sensation of being fused with the girl that had managed to dominate her that was making her feel this way. She never wanted it to stop. She wanted it to keep going forever and ever and ever. And when the fusion came this close to coming to a deep and intimate end...

Erowa's climax echoed out, and the very last droplets that were allowed to leave her cock squirted out. Not onto the bed this time, but rather the floor as she sat up in bed. Well, it wasn't her that was sitting up at this point, but rather the fusion that had arose from her and Shinobu's merger. A fusion that couldn't help but giggle softly...

"This body..." The fusion muttered as she slowly looked at herself. She definitely felt the power brimming through her, courtesy of the two ingredients that had been mixed together and basted in cum. Not only that, but she could definitely feel their mutual arousal. She wouldn't be feeling this hot if that wasn't the case. Not that she'd ever dislike feeling this thoroughly aroused, it'd be a damned shame if she didn't enjoy herself to the fullest.

While she was satisfied with a quick look at herself, especially her rather mature curves that nicely rested against her form and brought out the best of her figure, she still needed a good look at herself through a mirror. And while she didn't have one that could do the deed in the room since all of that crying had managed to shatter the one mirror that she actually had hung up, a little kiss to her fingertips and a dreamy mirror formed from her love appeared in front of her.

The fusion was... To be quite blunt, erotic. What other way could you use to describe somebody that wasn't even wearing a single piece of clothing, and instead let the dreams embedded in her body serve as the only source of modesty? It was like the dreamy clouds were tattooed onto her body, those loving clouds that one could get lost inside. Combine that with her blonde hair now reaching down to her hips as it was highlighted by a tender red on the inside, and there were many things that drew one's attention towards her. Beyond just her bombshell of a body.

"Well aren't you dreamy?" The fusion giggled as she carefully let one of her fingers drift down her body, letting it graze her covered nipples as she slowly drew a heart across her stomach. "Then again, with the kind of materials that went into my creation... Heh, they were probably thinking of getting it on instead of fusing. I'd feel sorry for them if it didn't result in me being unleashed."

The fused Magical Girl... Was corrupt. Through and through. And now that she was like a living dream, there were a lot of things that she wanted to do. Beyond imprinting on the materials that had caused her to take form, so they would want to return to her even after she defused...

Her name was Ninth Nirvana. And until she was woken from her living dream, she'd help others drift into a blissfully horny sleep as well...