[Gyaru TF, Infectious TF, Environmental TF, Genderswap]

“Ehhhhhhh… Are you sure about this, Kumi?”

“‘course I’m sure, Nanae! This place’s been so drab lately, it’s totes fine if we start making a bit prettier!”

Two gyaru girls, a platinum blonde and a regular blonde, were standing in front of one of their school’s walls. They were known around the block to be delinquent-ish, mostly because they did things in their very own way without keeping track of how other people treated them. ‘cuz that was just how they liked to do things. Personal freedom above all else.

“Yeah, but aren’t we going to get a scolding?” Nanae, the platinum blonde, ran her hand through her hair. “I dunno, this seems like a really bad idea…” She muttered. She was always like this, getting cold feet when it mattered most.

Kumi, the older blonde, looked over her shoulder and smiled before patting the girl on the shoulder. “It’ll be fine, Nanae. Just breathe, and gimme the can. I’ll make sure we leave a nice message for everyone to see.”

The younger of the two gyarus nodded as she handed over a suspiciously labelled can of spray paint, prompting the older to handle it with a great amount of skill. Painting a massive heart upon the drab wall, dotting it with the same kind of dots that their underwear had. Before tossing it back to her partner with a grin.

“What’s it supposed to mean..?” Nanae asked as she looked at the heart, blushing a little. It was almost like she was looking at the older girl’s ass from the back, like the heart was representing the panties squished between the older student’s cheeks.

Kumi patted the girl on the head. “You know exactly what it means.” She chimed, before stretching a little. “Now, how about we go grab a snack? I’ll pay, just ‘cuz you ended up being a real pussy.”

“I’m not a pussy, Kumi!” The platinum blonde shouted as she immediately started chasing her friend off, the latter laughing as they disappeared into the night…

With neither of them noticing that the heart was spreading across the wall. The living paint inside the can was more than happy to spread now that it had been released…

---

“Did you two really think you could get away with vandalizing public property like that?”

Unfortunately for the two gyaru, they had been caught in the act. Honestly, what were they expecting? They knew that the school was being monitored at all times thanks to the many cameras that had been installed, so why would they even think they couldn’t be caught on camera?

“But, teach! We just wanted to give everyone something nice to look at! Honest!” Kumi cried out, huffing and puffing as she walked in front of the older man that had apprehended her. “Come on, Nanae! Back me up!”

Nanae shook her head slightly and sighed. “You’re just going to make it worse for us, Kumiiii.” The platinum-blonde muttered, as she tried to work through a headache. She hadn’t slept well last night, though she couldn’t explain why…

The older man and their teacher, Katsuo, looked back at them for a moment. “You know you didn’t have to go through this trouble.” He said, adjusting his shirt and tie for a moment. “You could’ve come to me and asked if we could spruce up the colors of the school, and I would’ve forwarded it to the principal. I’m not sure she’d listen, but it would mean you two weren’t saddled with cleaning up the walls you’ve made a mess of.”

“...Eh?” The two girls paused as they looked at one another. Last they remembered, the graffiti was just like a cute heart and nothing else. Why would their teacher say the entire wall was covered?

As they went around the corner to check on the spot they had painted, both of the gyaru let out a shocking screech as they figured out just why their teacher had given them this scolding.

The whole damned wall was covered in graffiti! Not just a little bit like they thought, but the entire goddamn thing! From top to bottom too, with a rather attractive looking gyaru sprayed all the way up to the roof. And lots of slutty slogans that kinda didn’t fit with their aesthetic, like ‘slutty n proud’ and ‘cock champion’ and all sorts of things like that.

“How the hell?!” Kumi cried out as she backed away from the wall, her entire body trembling. “T-Teach, we didn’t do this! We were just painting a heart, not… not all of that!” She tried to protest.

Nanae nodded, shivering as she admired the girl that had been painted onto the wall. “T-There’s no way… W-We don’t even know anybody that could model for something like this…” She muttered, a blush slowly covering her cheeks…

“...” Katsuo remained silent for a moment as he looked at the graffiti, his own cheeks flushing red. “I can certainly see why you’d both say that, this is… a bit more than an evening prank. Not only that, but… It’s definitely bigger than what we saw on the tapes.” He muttered, slowly adjusting his tie again. “S-Still, that doesn’t let you two off the hook, but we might need some help.”

As the teacher went off to make a small phone call, the two gyaru convened together and started whispering together.

“K-Kumi, what exactly was in that can? Was it paint or was it like, something dangerous?” Nanae asked, with one eye still looking towards the horny stuff sprayed all over the walls…

Her friend shook her head. “D-Dunno, I just got it from another gyaru. She seemed a bit too happy to share it though…” She muttered, the gears slowly turning inside her head. “Maybe… maybe she was one of those… Cho-Gyaru…”

“Ehhh? T-Those? The kind that want to be the only people in the world? The kind that seem to pop up and then everyone in the surrounding area ends up turning into a gyaru? Like those doujin thingies that we pawned off that nerdy kid? You got involved with one of those weirdos?!” The platinum-blonde cried out, a bit of sweat running down her chin. “You might be my senpai, Kumi, but that’s seriously bad stuff…”

Just as the two girls were busy conversing, neither realized that the graffiti was starting to reach out towards the two. The girl on the wall was alive, and she was hungry for a couple of friends to play along with her…

“WATCH OUT!”

Both gyarus were surprised to find themselves elbowed out of the way by their stout teacher, both falling onto the ground as they were forced to look at the paint sinking onto his body. Just the fact that the big paint was busy trying to sink into him was bad enough, but… H-He really did care about them, which just made this even worse!

As they kept watching, they watched as the brown paint completely washed over him. Washing away the fat, washing away the imperfections, leaving him as one big canvas. A canvas that it was more than happy to color.

Upon his slimmed form, several tattoos that weren’t too dissimilar to the words sprayed across the wall started to appear. All of them serving to emphasize the sexual nature of his new body. But that wasn’t enough.

As the paint continued to fill him up and turn him into something new, his body pushed out in all the right spots. Whether it was his hips, his chest, his ass, everything. All while his gurgling cries from being practically drowned were turning into moans and pants…

It wasn’t hard to understand what was happening, it was just hard to believe. Both gyarus were face to face with their teacher being turned into a girl just like them, just one that was a bit more exaggerated. What better way could you describe the excessive assets, anyway?

Once his, or rather her, body had been properly painted on by the living liquid, it was more than happy to give an extra layer to make sure that she looked perf. Whether it was a terribly tight tube top with ‘GYARU 4 LIFE’ written across it, or a pair of shorts that begged to rip apart if she ever squatted down…

And it was clear that she wasn’t herself, as the flow of paint finally came to an end. The gyaru-fied Katsuo, now nothing more than Kat, licked her lips as she looked towards her students and stretched her arms behind her head. “Mmmmph! Never felt betta’! C’mon, girls! You’ll love a bit of this!”

“N-No way, no way! We wouldn’t like this, no way!” Nanae cried out as she got up, her chest pounding as she tried to help her friend onto her feet. “C-Come on, Kumi! We gotta get away!”

Kumi nodded as she got up, grabbing her friend by the wrist as she tried to sprint away… only to notice that the girl wasn’t moving from her spot. “O-Oi! Nanae, get moving..!” She cried out, quickly spinning her head to try and see what was keeping her.

Why, it would be the graffiti. That had spread from the wall, onto the ground. Turning it from a clean looking asphalt path to a rough looking back street-type deal. It wasn’t just the ground either, it was the entire building that the girl was graffiti’d onto. It was quickly turning into a real shitty looking building, the kind that a gyaru would hang out in ‘cuz they had no better option. And ‘cuz it was hella cozy.

“C’mon, girls!” Kat giggled as she stepped closer, the paint dripping from her form as her heels raised into the air, a couple of sleazy looking red heels appearing around her feet. “Don’t worry about all that junk n’ have some fuuuuun.” Their former teacher had turned into a way-too-handsy kind of woman…

Nanae struggled, but it was way too late. The paint that had spread across the ground and onto her feet was quick, to the point where she only just got to let out a scream as she was consumed by it, her body exploding into paint with how powerful its influence was.

“OI! NANAE!” Kumi cried out as she was forced to let go, quickly jumping away from the platinum-blonde as she felt the shivers running down her spine. “N-Nanae..! NANAE! YOU CAN’T JUST DISAPPEAR!” She shouted from the depths of her heart.

Which was exactly when Kat grabbed her, the girl’s attention being all-too-focused on her friend leaving her with an easy way to get to her. “Don’t you worry about little ‘Nae. She’s fiiiiiiine. And you’ll be fine toooooo.” The erotic gyaru, whose face was decked out in heart tattoos, giggled as she forced her lips upon the former culprit’s cheek.

The blonde gyaru couldn’t do a thing as the paint spread from her teacher’s lips onto the rest of her body. Since she was already nice and dark skinned, it just had to consume her will. By practically spraying itself all over her body, covering her in a nice and glossy layer of pure depravity.

She let out a moan as she felt her body growing warmer, as it became trapped within the wonderful cocoon. It felt really good, so good that she didn’t have to think about anything else anymore, especially as her teacher rubbed up against her more and more to make sure she was absolutely smothered by the paint…

‘Kumi’ snapped back to reality as the paint formed a matching set of clothes to the ones her new bestie wore, giggling as she gave her a paint-filled kiss. Not needing to say another word, as the two looked towards the girl that had ‘exploded’.

Standing there was Nanae. Or rather, the girl that had been painted atop of by all that wonderful gyaru goodness. And like her besties, she was more than happy to get all nice and cozy with them, as she walked over and rubbed her deliciously bouncy body up against theirs.

There was nothing inside their minds. Or rather, their minds weren’t important. They were just thralls of the spray paint. And they had to make sure it spread further and further.

Just like all the other ‘Cho-Gyaru’. Girls that had been sprayed on with Gyaru paint, turning them into even better gyarus… And wherever they went, more gyarus would follow. Whether in the form of actual girls, or the environment changing to lure more in.

It was only a matter of time before the entire city would be ruined by their influence. And from there, the world...