Chapter Text
Professor Dekapan didn't really understand why Jyushimatsu frequented his quaint little laboratory every now and then but he didn't mind. He always loved to talk about his new inventions and ideas to anyone who was willing to listen. And while Jyshimatsu Matsuno didn't look the type to understand convoluted explanations, he made the effort to listen and to try and understand in his own way, which was fine by all means in Professor Dekapan's book. Anyone willing to understand, to learn, was a person to be admired.
Jyushimatsu tended to bring one of his brothers when he wanted, and today it was the blue one that accompanied him. He looked to be just as curious as Jyushimatsu, although he thankfully kept his hands to himself. Professor Dekapan wouldn't want a mishap to happen, especially since it would take quite some time for him to reverse the damage that may occur.
But this is a gag anime fanfiction, and of course something wild and completely predictable is going to happen. For the sake of entertainment, and for the sake of putting our favorite brothers through an ordeal they didn't think they would have to face for at least a couple more handfuls of years.
"To make flowers grow faster!" Jyushimatsu cheered over and over behind him, reminding Professor Dekapan why the two siblings were there in the first place. The blue one wanted to grow flowers of his own, to give to girls in hopes of sweeping them off their feet. "And more colorful! And nice smelling! Right, nii-san?" he asked, turning his head to his older brother for confirmation.
"That is correct my little Jyushimatsu," he agreed, nodding his head firm in resolve. "For each and every girl out there is unique, and I would want nothing more but for them to receive flowers that are as unique as they are," he explained though it fell on deaf ears. But it didn't matter to him, since he was more than used to delivering monologues and soliloquies despite the lack of audience.
Well, his spiel didn't go completely ignored. "Then what of crossbreeds?" Professor Dekapan asked as he rummaged through his shelf, looking for the little bottle that held the growth enhancer that they sought. "Hmm, now where did I put that darned thing?"
"Ooh!" Karamatsu exclaimed, genuinely curious and interested in seeing what kind of beauty crossbred flowers could show him. "That would be lovely, Professor! Surely whatever the outcome will be—"
"Crossbreed?" Jyushimats asked, turning around abruptly to look his brother in the eye. "What's that?"
As the blue one began to explain crossbreeds in an unnecessarily complicated way, Professor Dekapan found the bottle he was looking for. At least, it looked to be the right bottle. He squinted at it's label, worn out and faded from being left alone to collect dust for so long. He blew at the glass bottle and a small cloud of dust erupted around him, causing him to cough and sniffle and—
—ACHOO!!!
The little glass bottle slipped from his fingers, twirling around in the air like a cheerleader's baton. The cork, old and crumbling, easily slipped out and flew away in another direction. The content of the bottle could land anywhere now but the centrifugal force of the spin kept it from spilling for now.
Professor Dekapan watched in slow motion as the little bottle spun and spun and spun, watched as it slowly descended. He watched as the rim of the bottle promptly and conveniently landed in Karamatsu's open mouth (he was still talking? Goodness, what a talkative boy!) He watched as the content of the bottle slowly disappeared with each bob of the blue one's adam's apple.
"Oh dear," Professor Dekapan said sheepishly.
Jyushimatsu went to his brother's back, his arms wrapping around him in preparation to perform the Heimlich Maneuver as the bottle lodged itself in his throat. After a few harsh squeezes from the yellow one, the bottle was finally free from his brother's mouth and shattered against the floor, it's life and purpose now done and over with.
Everyone looked at the broken bottle in confused silence.
"Am I going to die?" Karamatsu asked after a beat, his face red from the rough way his brother had helped him.
Professor Dekapan shook his head confidently. "No, that was meant for living beings— plants in this case— so I don't think it will do you any har—"
A loud "poof!" was heard, a pink cloud of smoke appearing where the blue one was. The professor and Jyushimatsu coughed as the smoke invaded their senses, scrunching up their faces in distaste as it burned their nostrils.
After the smoke had subsided...
"Nii-san?"
"Oh my goodness..."
Karamatsu popped his head out of his over-sized sweater, looking up at his younger brother who now looked too big to be his younger brother. He blinked, confused, and a little bit hungry, before erupting into tears. He tried to wipe at his eyes only to find that his hands were hidden beneath too much sleeves and proceeded to cry more, harder, and louder.
Jyushimatsu jumped, startled, but cradled his brother in his arms instinctively.
Professor Dekapan crouched down and pulled the label from the shattered glass on the floor, squinting his eyes once more to try and decipher his own atrocious handwriting. And, after a few long seconds of staring, he laughed. "Ah, silly me. That was a de-growth formula!"