It was a nice day in the dragon lands and all was good. Princess Ember sat upon her small (by dragon standards) throne, enjoyed a nice pair of rubies and pondered how best to spend this evening. Being a dragon lord was amazing. Not only did everyone do exactly as you asked, dragons in maturity were such isolationists, they hardly ever needed things outside of small disputes and petty quarrels during the migration. So far, Ember had just decided on what kind of gems she would get during annual tribute and that her father's pension should not include any lapis lazuli (at least until he apologized for not getting her a doll for her fourth birthday, the lazy drake!).
Suddenly magic flashed and four giant dragons jumped onto her.
"SECURITY!" Came Ember's muffled scream from below the pile "GET THE SECURITY OFF ME!"
The guards got up and helped the smushed lord up. "I need smaller protectors!" She decided as said guards retreated with apologetic smiles on their faces.
"Oh, it wouldn't help, my dear. What they can't cover in size, they will make up in mass. During our recent assassination attempt, I had 15 of them on me..." The alabaster alicorn that had appeared in the panic inducing flash of magic stated casually. Another, smaller alicorn was beside her, though she was deep blue. "And all because the window cleaner had come early..."
The dragon lord shook her head and looked at the newcomers. "Oh..." she said "You must be the alicorn princesses of Equestria."
"INDEED THAT IS TRUTH!" Luna explained in full Canterlot voice "WE ART THE PROTECTORS OF EQUESTRIA, THE GUARDIANS OF SUN AND MOON AND THY FELLOW ROYALTY! WE HATH COME TO CONGRATULATE THEE FOR THY BECOMING THE NEW DRAGON LORD!"
Ember picked herself off the ground. She had not expected to be knocked over by the sheer voice of a pony. "Very nice to meet you, I guess." She answered, her ears ringing slightly. "What brings you princesses here?"
"Oh, hasn't old Torch told you?" Celesstia asked with a smile "He can be such a goof. I bet he instantly went on a vacation after the scepter was gone... probably in a huge lava lake with a stash of lapis lazuli in on claw and your mother in the other..."
Ember shook with disgust at the picture. "No, he didn't tell me much. Anyways, why are you here?"
"Oh, we visit every dragon lord after they have had a chance to settle in. You know, we get to know each other, talk official things..." Celestia explained cheerfully.
"I see..." Ember answered carefully. While this pony was bigger than her, she was smaller than father. Why would she know him so... well. "If this is about tribute or begging not to be conquered, don't worry, I won't ask anything of you. I won't be a bully."
Luna covered her mouth as she let out a very small giggle. Celestia's features remained calm. "Oh, that is very good to hear. I wish your father was this diplomatic on our first meeting. Gosh, I still remember him screaming at me how I should submit and prepare to be crushed under his claw and such... hillarious in retrospect."
"What?" Ember deadpanned.
"You see, most dragon lords instantly plan to enslave basically everything around the dragon lands when they get into power." Celestia said with a gentle smile. "Posturing and laughing and being completely enraptured with their own sense of importance. You should have seen your father, dear, he was poofing his chest out so much, it entered his cave an hour before the rest of him. Adorable..."
Suddenly Princess Luna leaned over to her sister. "Sis, can I go first this time?"
"Oh, of course, Luna." Celestia said with a smile "I simply adore how melodramatic you can be..."
Luna let out a small squee and made a step forward. "LORD OF THE DRA-"
"Please, no more shouting!" Ember yelled "I won't hear your sister's proposal if you deafen me first!"
The moon princess pouted. "Fine... Dragon lord Ember. I am Luna, the princess of the night, guide of the moon and maiden of sleep. I watch over the realm of dreams and rest, guiding all sentient creatures through its tides."
Ember nodded. She had heard her father say that dreaming used to be way more fun a thousand years ago and ever since that thing on the moon was gone, things seemed to work out better indeed.
"And while I take a neutral stance in this duty, never chosing to ignore the needs of anyone due to their nature, alignment or any other reason, I do care about the subjects in the waking world. You can not directly control all dragons in the world, that is their nature..."
The sky darkened suddenly.
"BUT should you ever ORDER your dragons to hurt my little ponies..."
Shadows became longer and seemed to grow claws.
"Then you and your people shall not know a peaceful night of rest again! I have seen into the dreams of the twisted and the deranged, I wandered the realms of nightmares and trust me, I have looked into the abyss. I can create creatures who only live to torture the dreaming. To make each night a living hell. And you will live through things that would kill you in the real world. Not your scales, not your fire and not your claws will save you for in the dreaming, you are MINE!"
The darkness retreated and the everything was normal again.
"But do not worry about it, you had no intention to hurt anypony anyways..."
Ember slowly crawled out from behind her throne, her whole body trembling, her eyes wide and her wings stuck firmly to her back. And the had thought that GETTING the scepter was scary...
"Very impressive Luna... you never cease to amaze me. A little melodramatic in the end though..." Celestia added with a gentle giggle.
"It's a gift..."
"Anyways, dragon lord Ember, I am Celestia, Princess of the sun, ruler of Equestria and guider of- I think you get it. Let me be quick... The sun is hot. Very hot." Celestia said, her smile never wavering "So hot in fact, it is beyond our regular terran physical states. If I ever had a reason, I might just pull it a little closer and suddenly an entire kingdom evaporates, no matter how though their scales are. And I could even break off a hoof-full, which would to just as much to singular targets. Why, one would need an entire legion of slaves to abuse my good nature to ever consider waging war against us..."
"I get it." Ember responded.
"We are very glad. Sorry to just appear like that and surprise you." Celestia added smiling "Now.. We won't take up any more of your time. Feel free to send us as many letters as you want. I like to keep in touch with my allies. And tell your father that I said hello. AND Knight from E4 to F6. Spares me a letter. Have a wonderful day..."
"That move will ruin your game, Tia. Take hi-"
A flash of magic and the two ponies were gone.
Ember was silent for a long time, staring ahead, understanding... understanding a lot.