Super Big Bro 1 (Patreon)

Super Big Bro - or ‘How I ended up becoming the Big Brother to Three ‘Perfect Girls’’ (Powerpuff Girls’ Brother!SI)

The city of Townsville! What a wonderful city! Many would say it is among  the best in the world and-

“Nope.”

U-Uh? What do you mean no, young sir? I am here to narrate-

“We are not doing it like that. Plus, the girls are busy so I will be doing a bit of cleaning.”

Oh, I see! Well, the city of Townsville has four heroes. The cute girls and their grumpy bro-

“I will use the gamer word starting with N if provoked. Test my patience, narrator, and I will show you my authoritee.”

…I guess I can go for a coffee break.

…

And he is gone, good. Now, let’s try to be quick with this. Name’s John Bukharin, I was a normal guy until I got in a close encounter with a truck. Before getting Isekai’d, I was ‘exploded’ into a different existence through an experiment made by Professor Utonium while testing the basic effects of Chemical X when using some specific elements.

For me, it was Ink. Yes, ironically, Ink was what became a catalyst not just for summoning, but also made me ‘naturally-predisposed’ to absorb the Chemical X into a stable set of powers I could now rely on.

Due to everything that happened, my situation can be summarized in a few words: I was stuck in a familiar yet different world, I lived in Professor Utonium’s laboratory/home, I was the ‘Reserve Hero’ for Townsville and… the Big Brother to the Powerpuff Girls. The last task may sound very simple, but the truth behind it was quite difficult.

Especially during one of those days. The reason why I was going solo for this quest of justice was simple- the girls were busy getting their vaccine shots for the year. Professor Utonium knew his stuff around this sort of topic- especially since he was the sole expert in handling anyone with the biology of the girls and I.

So I was out there to make sure none of the girls had an excuse to dodge this matter while the good doctor prepared to be ready for some swift shots being delivered.

Today’s villain was…

“Fuzzy, we already had a talk about this,” I remarked calmly as I descended from the skies to greet the pink-furred hooligan. “What are you doing?”

“Minding my own business!” He took aim with his boomstick and I caught the pellets.

I had been training my reflexes for a few days but it all came to natural precision. And I was quite good at it. Once I stopped the first blast, I rushed to the side and kicked the gun, severing it in half.

“H-Hey, that was mah-”

“Boomstick, which could have been your big nose if you keep on sticking it in Townsville,” I pointed out flatly, giving him a big glare. “Not today, bud. And you’re going to jail now.”

He tried to punch me, but I ducked and got him with a low-effort uppercut. He made two flips and then slammed face first on the ground, tuckered out. Dusting my palms, I gestured to the police officers nearby to take care of the unconscious villain, before leaving to take care of the real hardship of today.

By the time I arrived I could see that the truth had come out. Bubbles was sitting outside, licking a lollipop as I walked up to the entrance. She had a little duck-themed bandaid on her arm, showing that she was done with her bit.

“Hiya, big bro.”

“Bubs, were you a good girl?”

“I went in first! Oh- and Blossom is fighting with Buttercup because she doesn’t want the shot.”

I frowned at the grammar. “Buttercup or Blossom.”

“Buttercup, duh!”

I shook my head, pausing just briefly to head pat the blonde and elicit a giggle from her as she patiently waited for her sisters to be done too.

The situation was indeed dire. Blossom was trying to yank the tomboy of a sister she got back in the lab area but Buttercup was not having it at all.

“Come on, or you will get punished too!”

“Nuh-huh, it’s not like the professor and you can stop me from-”

Buttercup paused, sensing a shadow looming right behind her. She looked up, and saw me standing right behind her with my arms crossing by my chest.

“O-Oh. Hi, big bro.”

“Lil’ BC, what’s going on?”

“Uh… Defending myself?” She replied nervously, blinking desperately.

“From a tiny needle you will barely feel.”

“It’s a big needle! A-and you know that.”

“Tiny thing,” I rebuked flatly, hands squeezing by her shoulders. “You’re getting your shot.”

She tried to bolt away, managing to get out of Blossom’s grasp but failing to free herself from mine. I had to drag her back to the professor, the man nodding thankfully at me as I got her sitting still as he administered the shot. By the time she was done, she was biting at my hand quite strongly.

“Dummy, you’re done so there’s no need to… uh?”

I saw Bubbles now suddenly hugging my legs together.

“Bubbles? What are you-”

“GOTCHA!” Blossom exclaimed before tackling me from behind and forcing me to bend over.

“...What?”

“Sorry, John. But as your little sisters we need to also take care of you getting your shots too.”

“Oh. Wait, shots? Multiple ones? Then why are you bending me over like that if I have to get them in my arm?”

“That’s because I developed a solution to mix all those concoctions without causing any issues in a single shot,” Utonium hummed, “The issue is that the needle I have to use is a tiny bit bigger than usual.”

Buttercup had a smug grin as she was now holding my arms down. I wasn’t sure what was there to laugh at. It was at that point that I felt the professor slightly pull my pants and underwear down and… stick a 36 Gauge needle on my butt.

I would learn only later that he could have just done this with a smaller needle, but that it would have ‘inefficient’ plus… Buttercup didn’t want to feel ‘alone’ in this task when he brought it up yesterday night at dinner while I was off for a patrol.

Right now, however, only a single possible reaction was within reach.

“GYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHHHHHHHHHHHHH!!!!”

I wouldn’t be able to sit on a solid surface for at least a couple of-

So once again the day is saved thanks to Powerpuff Girls as they successfully trick their big brother into getting his multiple shot-in-one needle. What an astonishing group of cuties!

Wait- You knew that was going to happen?!

Of course! I am the narrator and your style to end a chapter is suboptimal!

…I actually hate you.

—---------d-d-d-d—------

AN

Small ‘Pilot’. Next chapter will be Thiccer.