Nightmare and his boys. (angst story, made up au)

The first of 3

Nightmare sat wide awake at his desk. Piles and piles of paperwork surrounded him. In a state of anger he flung his arm toward one, watching as the sheets of paper slowly hovered down to the ground. He growled in rage, standing from his chair.
Nightmare was usually quite calm, but this had broken him. Dream had sent him a letter. He already torn up the worthless message with both his hands and teeth immediately after reading it over once. Dream? Worried about him? Absolutely not.
Nightmare hated that positive light. More than anything infact. But his words were getting to him. "You must be so lonely, Night", "Surely you desire company, Brother?" Bullshit.
Nightmare looked at the papers he had flung around the room. He would prove his brother wrong.

A few days passed. Maybe he was lonely. Nightmare had made way too much food for himself. Nightmare's home had so many spare bedrooms. Nightmare couldn't help but slightly desire company after having the idea unwillingly thrown into his head.
He sighed. But then..sudden flow? Sudden negativity? A wave? Energy he had never felt before- Something different. Very different.
He melted down into a small puddle of his goop, warping to the negativity source.
All he saw before him was a young, skeleton toddler. The young one was sobbing alone with a scar across it's eye. Nightmare hesitated but walked over, gently picking up the little one.
The younger whined yet seemed to slightly calm as Nightmare took hold of him. The little skeleton only looked around 1 or 2. Concerning for them to be left alone crying with an open wound..

Nightmare thought. Taking the child would give him much more work but perhaps..it would benefit him? Just maybe this was a good idea. Perhaps it was meant to be? Nightmare was meant to raise a child. But not as his own. Just maybe as..a negativity source?
Nightmare grinned at the thought of how much negativity production he would get out of one source. It was a beautiful yet terrifying thought. But mainly beautiful for the skeleton.
He didn't waste another minute, warping away with the young being.

As the darker arrived home, the little skeleton began to laugh. He seemed to enjoy the warping suprisingly? Most threw up, or even teared up while grown at the odd sensation. Especially first time. But no, this child was different. How strange..
Nightmare carried the younger to his room, sitting him down on the edge of his bed. He then used a tentacle to bring himself a small plaster as well as some cleaning products for the small wound.
As soon as he applied a cold liquid, the younger began to whine again. This angered Nightmare, but he didnt do anyhing physical. He kept his calm, assuring the toddler it was okay.
"Relax, i'm helping you. Be grateful."
The child didn't seem to understand so much.

"Pain is an illusion, be quiet."
He stated such lie with a small chuckle. He was told the same when he was younger. How funny.

It took 15 minutes for Nightmare to clean and cover the wound. The younger was still crying, yet not as loud. More of the odd sniffle and tear. Nightmare couldn't help but find the little one adorable for this. A small smile faded onto his face yet was quickly removed as he shook his head
What do children even eat? he wondered. Pasta will do..plain pasta. Small amount of unseasoned sauce. Perhaps homemade pasta with egg and flour? Then a homemade sauce made with..no too much effort. Just homemade pasta and some canned sauce would do. With a very small hint of salad on the side for himself. Perfect.

He scooped the younger up, holding him in his arms as he carried the little one downstairs.
He propped the younger up on his shoulders, a tentacle holding them in place lightly just in case as he began to work on the dinner.

"Diary, I write here today as a new life has entered my own. I decided to name him Killer after the AU he came from. Maybe one day it will suit the boy to say all he seems to do is sleep and whine. I thought children his age were slightly more educated to at least speak. Ive began teaching him a few words, hes a fast learner im glad to know. He's good with eating as well as that. Scoffed the pasta I made. Even reached out for seconds suprisingly. It's pleasant sharing my home. Perhaps this truly was a good idea. I've decided, as the boy seems to cry when I leave his side, that he can sleep in my bed tonight. He seems to whine less when he gets his way, so I suppose if I want rest I don't have that much of a choice.
Hopefully tomorrow I haven't crushed him in my sleep."
-- NM.

Nightmare sighed. Another entery written, perfect. And the young boy had fallen asleep in his arms too. How vunerable and stupid. Yet..cute.
He stood up from his desk, carrying the little one to his room and laying him down. Nightmare quickly changed into some sleep suitable clothing before joining the younger in bed. He made sure to keep his distance and not harm the little one due to their size difference. But he could just tell..the younger would be happy to have Nightmare close by when he awoke the next morning.

The sun outside was still barely visible, yet the child was up. 'Killer' was budging Nightmare over and over trying to get his attention. Meanwhile, Nightmare was trying to get some sleep.
"Wake! wake! dada wake!" Killer would not be quiet.
Nightmare simply groaned, checking the time. 6:34am. Could be worse.
He sat up, rubbing his eye.
"Yeah yeah, im up kiddo."

Killer's face lit up.
"dada!" he squealed. What an energetic boy. Nightmare properly examined the boy now. He was just a simple younger copy of the original sans. Blue jacket, little big for him, black shorts, clean pure white skull, just no slippers.
While Nightmare was a little distracted in thought, Killer had decided to curl up on Nightmares lap, seeming tired.
He was so energetic a second ago and now he was..completely worn out? Strange.

This was a bad idea. 2 days had passed. This child produced little to no negativity. Purely the opposite infact. He needed to squeeze the negativity out of Killer. But how? He was no child abuser. That would..remind him of too much. Perhaps he could find a simple yet painful way to get it out of the boy. He'd just have to wait for an idea or oppotunity to hit him. Hopefully it would soon.