An Equestrian Nightmare

"Princess!" yelled Twilight before she was teleported away. Her five friends and Luna were also teleported out of the room, leaving only Celestia and Nightmare.

"How do you know my name?" asked Nightmare.

"I've seen what you've done on your world, it didn't amuse me." Celestia said coldly.

"How about a fair fight, put me back in my original body." said Nightmare.

"Hope you like losing." taunted Celestia. The two were then engulfed in magic. Nightmare opened his eyes and saw he was back in his old body (Complete with giant chest mouth). He then saw Celestia in her human form. She was as tall as Nightmare, her face bearing a look of determination. Celestia then charged Nightmare with blinding speed. She rose her sword high and swung down...only to hit Nightmare's sword. She was fast, but Nightmare was faster.

Nightmare then grabbed Celestia's sword with his claw and broke it. He then kicked Celestia in the abdomen, sending the princess halfway across the room.

"That's the best you can do? How weak." taunted Nightmare. He then walked over to Celestia and held the sword above her chest.

"Any last words?"

Celestia didn't respond. Nightmare then drove the sword down onto Celestia. When the sword reached her however, the body vaporized into mist.

"What the...?" said a confused Nightmare. He then heard someone clapping behind him. Nightmare turned around and saw that it was Celestia who was clapping.

"Bravo, Nightmare." said Celestia.

"Why are you clapping?" asked Nightmare.

"I wanted to see how good you really were. I wasn't disappointed." explained Celestia.

I'm not somebody's, let alone a princess's, plaything! thought Nightmare.

"You're not? How sad." said Celestia. Nightmare then recoiled from shock.

She can read minds?! thought Nightmare.

"No, I can't. What are you talking about?" said Celestia, bearing a mischievous looking smile. Nightmare sighed in defeat.

"So, now what are you gonna do?" asked Nightmare.

"For starters, I'm reverting us back to our pony forms." said Celestia. She then snapped her fingers. Both her and Nightmare were engulfed in magic. After a few seconds, the magic dissipated, leaving Nightmare and Celestia back in their pony forms.

"Great, back in this body" said Nightmare.

"Now, now, you look nice." said Celestia.

Nightmare brushed off the compliment like blood on his sword.

"Fine, there is actually a reason you were sent here."

Nightmare looked Celestia right in the eyes, "And what reason would that be?"

"You're going to have learn how not be evil." said Celestia.

Nightmare scoffed "You expect ME to not be evil? HA!"

"If you don't do it, you'll never have your vengeance." said Celestia.

She's right thought Nightmare.

"As always." said Celestia

"WILL YOU STOP THAT?!" yelled Nightmare.

Celestia got right up to Nightmare's face "No." Nightmare swung his clawed hoof at Celestia's face. The attack was stopped by Celestia's magic.

"Nice try." Celestia then released her grip on Nightmare's hoof.

"If you want to get out of here, you'll have to also learn the magic of friendship."

Nightmare laughed, "HA! Why would I need friends?"

"Everyone needs friends. Now, I'm sending you over to Twilight's house. She's my best student." said Celestia. Nightmare remembered Twilight.

"She's the purple unicorn, right?" asked Nightmare.

"Yes. And please, try to at least act nice." said Celestia.

Nightmare grumbled "I'll try."

"Excellent." said Celestia.

"I don't know about this, Twilight." said Rarity.

"Relax, I'm sure he's friendly." reassured Twilight.

"What if he's not?" asked Fluttershy. "You saw how he reacted toward you."

Twilight gulped "Ponies change, I'm sure he can to."

"Speaking off, where is he? He's probably to chicken to--" Rainbow Dash was cut off by the appearance of Nightmare in front of her. The Azure Knight looked at her with  threatening eyes, forcing her to back away. Nightmare then looked at Twilight.

"I was told that I have to learn about..." He shudders "...friendship."

"Oh that's easy." said Twilight.

"Ha! Yeah right." said Dash. "I wouldn't befriend this guy, even if my life depended on it." Nightmare turned and stared Dash down. It didn't work as Dash waltz right up to Nightmare and smacked him in the snout. He recoiled in pain.

"Ha! Not so tough now are yo--" Dash was cut off by a claw grabbing her throat. Nightmare raised Dash into the air, slowly choking the life out of her. Twilight and friends just watched the events unfold before them. He then lowered her so he can see Dash's face.

"You don't like me, and I don't like you, but if don't learn about your pathetic friendship, I'll be here for a long time. Understood?" said Nightmare. Dash was still struggling against Nightmare's grip on her.

"UNDERSTOOD?!"

"Yes." squeaked Dash. Nightmare then released his grasp and let Dash drop to the floor. He backed off to allow Dash to get some air.

"Dash, are you okay?" asked a concerned Fluttershy.

"I'm fine. Leave me alone" said Dash as she bolted out the door.

"One less problem to deal with." said Nightmare. Fluttershy then looked at Nightmare with a look of pure hate.

"How dare YOU!" said a clearly angry Fluttershy. She advanced on Nightmare slowly. Nightmare pointed Soul Edge toward her, causing an immediate feeling of fear to rocket through Fluttershy.

"I have no problem with cutting you into small pieces. Don't test me." threatened Nightmare. Fluttershy backed away slowly, her eyes beginning to water. Nightmare then looked at Twilight.

"So when do I begin learning about friendship?" asked Nightmare.

"Girls, could you give me an Nightmare some privacy?" asked Twilight. Her friends acknowledged this by leaving Twilight's house.

"You begin tomorrow." answered Twilight.

"Good." said Nightmare.

"Now where am I supposed to stay for the night?"

"Here." said Twilight.

Nightmare looked around the library "You live in a library?"

Twilight blushed "Books are one of my weaknesses."

Nightmare gave a genuine laugh.

Wait. DID I JUST LAUGH? thought Nightmare.

"You'll sleep upstairs in the guest bedroom." said Twilight.

"I don't sleep." said Nightmare.

A few hairs on Twilight's mane popped out with a SPRANG!

"What?"

"I haven't slept in a long time." answered Nightmare.

"...How is that possible?" asked Twilight.

Nightmare shrugged "Beats me."

"Well...feel free to read the wide selection of books here." said Twilight.

Nightmare looked at the vast collection of books "I will."

Twilight smiled at him "Goodnight, Nightmare."

He smiled back "Goodnight, Twilight." Twilight then ascended the nearby staircase to her bedroom, leaving Nightmare alone.

You know, she's kinda cute thought Nightmare. He laughed at the idea.

Wait. WHAT IS HAPPENING TO ME!! thought Nightmare. I am the Azure Knight! The symbol of destruction! DESTRUCTION! So why am I having thoughts on how cute someone is?!

Nightmare sighed. I'll deal with it, maybe tomorrow will be better. But first... Nightmare telekinetically brought a book over to him ...let's learn where the hell I am.