KimHuntress, I hope you like this

It had started out simple. The tunes of her soft flute enough to draw his attention, her laughter to make him grin, her soft smile bringing a blush.

Then she started to haunt his thoughts, day and night, and Nightmare knew he was head over heels.

But she preferred his brother, over him.

Nightmare decided to try and win her attention, by doing Dream's job.

But it turned out so wrong.

His world was destroyed. The magic of the black apples corrupted Nightmare. He could barely recognize himself. And...

He had lost Frisk.

She had left with Dream and that Ink. Nightmare had reached out...but she hadn't taken his hand.

It would be okay, though.

Nightmare had forever to plot and plan.

He would get Frisk back.

~'~'~

It was so easy.

It had been easy to manipulate Cross. Nightmare understood losing the pain of his brightest star in the sky, so he knew how to pull the strings.

The black, oily Sans kicked the dust away, without care. The remains of the Sanses- Ink, Fell, Classic, Swap, Outer, After, and Error- were in various states of dusting. He felt a burst of pity for their Frisks, now alone.

He stopped at Dream. His brother's sockets were wide open in death, golden cape starting to become grey with dust. Nightmare held a foot out...

And smashed his skull in.

The black Sans smirked as his brother disappeared into dust. There was no time for feeling sad.

He had to find Frisk.

~'~'~

His brother's realm was bright.

Of course, it was Dream's realm. Nightmare scoffed, starting to walk. As he walked, black overtook the gold. The realm was plunged into darkness.

Then he stopped.

There she was.

Frisk, hair now pulled into a loose braid, laid asleep. She was swaddled in pillows and blankets. She was dressed in a white and gold outfit, matching the rest of this dimension.

Nightmare sighed, heart thumping as he stroked her cheek. Frisk groaned as she stirred. Golden eyes opened with sleepy confusion. Her pupils dilated in fear. "N...Nightmare?"

"Frisk." He whispered.

She pushed away, trying to escape him. A tentacle wrapped around her waist, yanking her back.

"My Frisk." Nightmare whispered. "My precious Frisk."