I adopt some.

The idea belongs to this child: https://truyen247.pro/tac-gia/Firehedgehog

And you can find it here: https://www.wattpad.com/770918401-idea-factory-smol-bones

I can't figure out links so idk if this is even going to work :')

Also be prepared for the beast kind of crack fics: Crack taken seriously.

Error's skull was pounding.

He tried to think through the pain, and remember what had happened, when a voice nearby started reverberating through his skull due to the pain.

"Oh sh**-"

"INK! LANGUAGE!"

"Wh- Blue you've never cared about-"

"THERE'S A CHILD HERE!"

Error opened his eye sockets to see a concerned and now slightly annoyed Ink, an annoyed but mostly concerned Blue, a very, very confused Dream, and a laughing Nightmare.

And they were all towering over him.

Even Dream and Blue, who were like three feet tall compared to his five.

...And Nightmare was a fricken skyscaper.

"Uh...wh3n d1d y0u 7hr33 937 50 fr1ck3n' 74ll?" He squeaked.

Yes, squeaked.

His voice sounded like a four year old's voice; if he had ever been a glitchy four year old.

Behind the Star Sanses, Nightmare began laughing so hard somebody should've reminded him to breathe, because Error's expression of adorable 4-year-old utter confusion and anger was priceless.

Dream became concerned. Ink's face began to grow more and more concerned, but Blue...

Blue was this close to scooping up the small child and adopting him.

"1-1-1nk!" Error screeched, his glitching voice getting even higher pitched than it had been able to before; "7H3 H3-H3-H3 D1D Y0U D0?!?!?!"

Before Ink could respond, Blue's face of adoration turned into a scowl. He pulled a jar from thin freaking air and held it out to Error, stating, "SWEAR JAR, YOUNG MAN!"

Everyone ignored the octopus in the background, dying from lack of oxygen caused by too much laughter.

"BLU-LU-LU3 1'M N07 F1V3-" Error protested, but Blue said, in the stereo typical stern mom voice, "ERROR, YOU'RE FOUR NOW. YOU HAVE TO TAKE CARE TO WATCXH YOUR LANGUAGE." He then glared at everyone in the vicinity and said meaningfully, "AND IF ANY OF YOU SWEAR IN FRONT OF HIM, YOU'RE DONATING TOO!"

Ink asked curiously, "Where's the money going to?"

"PAPY'S TAB, NATURALLY."

"Of course," Dream said, finally starting to laugh at the ridiculousness of the situation. 

Error, of course, was the only one who wasn't amused that Ink had somehow managed to turn him into a child with his paint. 

___________________

"..."

"-w-"

"...Blu3 y0u 53r10u5ly n33d 70 570p."

Blue, who had kidnapped Little Error (As everyone had been calling him when he wasn't listening) for thew millionth time that month, gave a disturbingly innocent 'Mweh heh heh~'

"BUT YOU'RE SO CUTE LIKE THIS!" He protested. "AND YOU DON'T SEEM TO BE BOTHERED BY MY HUGS LIKE THIS!"

"1f y0u h4d 70 pu7 up w17h N19h7m4r3 c4rry1n9 y0u 4r0und 3v3rywh3r3," Error grumbled like the petty child he was, "y0u'd 937 u53d 70 17 700."

Blue was quiet for a moment. Then, Error's skull jerked upward and turned to Blue sharply. "W417-15 7h15 p4yb4ck f0r 7h47 71m3 1 k1dn4pp3d y0u?!" Blue giggled. "MAYBE A LITTLE... BUT MOSTLY. YOU'RE ADORABLE LIKE THIS AND YOU ACCEPT MY HUGS."

"1 5w34r 70 90d," Error grumbled, "1f y0u 4c73d l355 1nn0c3n7, 3v3ry0n3 w0uld 7h1nk y0u w3r3 4 pr0f35510n4l k1dn4pp3r."

Blue's grin became less sheepish and more of a knowing smirk. "Well," he said at a normal volume, "I'm pretty sure I qualify as one now."

Error shuddered.

___________________

"Hey Ink?"

"Yeah Dream?"

"Do you think you could make Nightmare a toddler too?"

"..."

"U-uh, nevermi-"

"THAT'S A GREAT IDEA!!!!!!"

*NyOooM*

"...I am regretting my life choices."

___________________

Nightmare was at Blue's house, trying to get Little Error back, when a broad-grinned artist appeared silently behind him. Said artist being emotionless, Nightmare didn't sense him, but Blue and Error certainly saw him. Just as they were about to warn him, Ink said gleefully, "Hey Nightmare! Wanna be kid-sized too?"

Nightmare spun around in surprise, and got a fateful of colorful age-changing liquid magic.

"AGHGHGHH-"

The speed of the tentacled skeleton's shrinking was incredible. No wonder it had given Error a headache; his body had been shrunk too fast for it to comprehend. HIs skull had literally imploded. 

After a moment in which everyone was still, the pile of sludge moved.

..And out came the cutest little evil button-of-a-child any of them had ever seen.

Dream, who had been hiding behind the window, teleported in and scooped him up.

"Awwwwww~ Nightmare you're so cute like this~" he cooed.

Nightmare was still disoriented from the process, weakly tried to push him away. "Mmmnnnooo go away," he grumbled. His voice was so high-pitched that the three grown skeletons in the room couldn't help but go, 'awwwww~' in a perfect chorus.

"Uh...Did we get another kid?" a voice at the front door asked.

Ink moved aside to reveal Orange and Swap Chara. As soon as Chara saw Error, they gasped in surprise and delight. "Dunkle?!" They exclaimed. "What happened?"

Error tried to teleport away, nit wanting to be picked up by anyone else, but he forgot that his powers were a bit...

Wonky.

He ended up in Dream's arms, along with a Nightmare who had regained the feeling in his head.

"ERROR WHAT THE FUCK-"

"5H17 7H47'5 N07 WH47 1 M34N7 70 D0-"

"GET OFF ME-!"

"1'M 7RY1N9!"

But, Dream had the two smols, and he wasn't letting go any time soon.

Meanwhile, Orange turned around and hoped right the hell out of that weirdness as Blue held out the swear jar to Ewwor and Nootmare.

This is why we don't mess around with magic paint, kids.