Before ya read, credit to UndertaleSkullzy1600 for giving me this idea. You should go follow them.

Nightmare sans was not afraid of anything...

Anything, except the dark.

---

"BROTHER!" Dream yelled in fear as his brother nightmare approached him with a wicked smile. It was night time and they were fighting- like usual, only this time it had gone a bit too far. Dream had his back pressed against the wall of his home as nightmare growled at him.

"BROTHER! I'M SORRY, I DIDN'T MEAN TO SAY THAT YOU REMINDED ME OF HITLER. ITS JUST THAT YOUR GOING TO END UP STARTING A WAR. PLEASE DONT KILL ME!"

Nightmare suddenly stopped and stared in confusion.

"Uh, I'm not trying to kill you because of that. That happened a year ago, dream. I'm going to kill you because you said that my food looked like someone cooked a brick and poured gasoline on it and lit it on fire when that's clearly not the case." Nightmare stated with his hands on his non-existent hips.

Dream glanced over at the plate with the brick that was on fire sat on it.

"But I was being honest. Nightmare, you set the brick on fire and said it was very healthy for me."

"That's because it is."

"Are you saying that if I eat this brick then my teeth will not break and my insides will not be on fire?"

"...Dream. we're skeletons. We don't have insides."

Just as Dream was about to say something back, all of the lights suddenly turned off leaving the room in complete darkness. There was silence and as dream stood up he heard a very very VERY loud scream making him jump backwards with wide eyes.

"Nightmare-"

"AHHHHHHHH"

"Nightmare wh-"

"AHHHHHHHH"

"NIGHTMARE!"

"AAA-"

Dream slapped nightmare to shut him up so he could get answers.

"Owww" he groaned as he held his cheek-bone in pain.

"Nightmare why are you screaming?" Dream asked puzzled and slightly concerned.

Nightmare didn't answer for a whole minute and as dream was about to ask again, he decided to answer sheepishly.

"I... I have a f-fear of the dark..."

Dream just gave a blank stare.

"Let me get this straight. The king of nightmares... is afraid of the dark?"

Nightmare grumbled something under his breath before replying with a quiet "yes."

Dream didn't know how to react. Half of him wanted to laugh at him even though that was mean and the other half wanted to hug him and tell him everything's alright. He couldn't pick between either option.

So he picked hoth.

He began to laugh and pull his brother close to him in a warm embrace.

"Pfft, hey its okay nightmare, the dark won't hurt you..." he chuckled as he pat his brothers head affectionately.

Nightmare didn't reply though, as he had fallen asleep and was in his own dream land doing a weird happy dance with a duck. Quality dreams.

A/N: this was just a silly thing xD. If you want to request anything, I'll try make it. I'll make anything except lemons/smut/NSFW's.