Prompt: For whatever reason (Quirk, experiment, Hatsume, etc), Izuku turns into a 12 feet tall minigiant. or on the contrary ending up doll sized? XD
This comes from admin Mom on my server.
DON'T WORRY; I'LL DO YOU ONE BETTER!

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I was in the support lab working on a robot when Mei comes over to me with a vile and says, "I bet you won't drink this."

Being the dumbass I am, I snatch it out of her hand and down it like alcohol!

Mei looks at me for a moment, then says, "Knew that would work! Now, come outside!"

"Um, why?" I ask despite drinking some unknown substance.

"Because it's going to make you big!"

"Wait. So I can finally be the tallest one here?" And Hizashi can stop calling me fucking short?

"Yeah! Come on!" Mei leads the way, and I quickly follow with a screaming Maijima behind us.

When we step outside, that's when I feel queezy for a moment. A close my eyes for a second, and open them up to see that I am way too close to the floor.

"Um, that's not what was suppose to happen," Mei says reluctantly.

Maijima sighs, "This is why we have lab rats!"

I look up at the two, and notice that I am the height that goes up to Maijima's knee, "I THOUGHT I WAS SUPPOSE TO BE TALL FINALLY! WHY AM I A FUCKING MIDGET?!"

Mei smirks, "Hey, at least we found that solution. I must have messed it up somewhere."

"OBVIOUSLY!"

Maijima groans, "Hatsume, go get Aizawa. Izuku, you're stuck with me."

"Fuck."

Mei runs to go get Shouta. Obviously, I get bored and start punching Maijima's knee.

"Seriously, kid?"

"Not my fault I'm bored. Why do you shave your legs, though?"

"That's for me to know, and you to wonder." Suddenly I step back when that feeling comes back. I blink, and I'm much taller than Maijima. Like, I'm three Maijima's taller than him!

"Hey, it worked!" That's when Shouta and Mei arrive, "I AM FINALLY TALLER THAN YOU, AIZAWA!" Shouta pinches his nose.

Mei, meanwhile, runs around, "I will need to get rid of that side effect, but at least it works now!"

"For how long?"

"An hour."

"WHERE'S PRESENT MIC?! I NEED TO STOMP HIM ON THIS!"

Shouta growls, "No."

"Why not?"

"You will probably tear up the campus somehow with something you do."

"I do that anyway!"

"More damage than usual, brat."

"So you're telling me that I need to up the damage standards." He just sighs to that while I spin around in circles. It's hard to hear them, so I might as well ignore them.

Then that stupid feeling comes back. I blink to reveal myself short again. I curse, "FUCKING COME ON!" Now I see the amusement on Shouta's face, "I swear to fucking God if you say something, I will punch your dick."

Shouta smirks, "How do you plan on doing that when you're so short?"

"ONCE I AM BACK TO NORMAL SIZE, YOU MORON! MEI, WHAT'S GOING ON?!"

Mei is writing something down, "It seems you change size every five minutes for an hour."

"...nevermind, I fucking hate this. I'm going to the woods."

Maijma says, "We need to keep an eye on your for any side effects."

"Too bad. I'm going to the woods. I can probably blend in with my hair." As I walk away, I hear a click behind me. I spin around to see Shouta with a fucking devilish grin on his face, "I will fucking hack your phone and every other phone that picture is sent to."

I stomp off into the woods where I remain in solitude, switching between a tiny tree and an extra-large shrub.

Lesson of the day: You should appreciate your size.