Celestia finished raising the sun up and headed down to where the Mirror was at. As soon as she arrived, the mirror opened it's portal again and Luna came out. There was no damage to her at all, though her eyes were half-way closed and tiring looking.
"Luna!" Celestia cheered, walking to her sister "How was the human world? Did you find out what they-?" Luna rose her right hoof up, silencing her sister. Her horn glowed and she levitated six, unconscious humans from her back. Celestia blinked as her pupils shrunk. "Luna. Are those... humans?"
"They are, sister." Luna answered with a smile. "But they're not for me, but for you."
"...For me? Sister, why would I-?" Before she could finish, Luna levitated one of the humans to her face.
"Relax, sister. They can't harm us. Give this one a good lick." Celestia's left eyebrow raised.
"You... want me to lick a human?"
"Give it a go, sister. Trust me! They're really good!" Celestia scoffed.
"Alright, Luna. I'll taste this one! I'm certain they'll taste nasty, and you put them back where you found them, got it?"
"Yes, sister." Celestia's horn glowed and she took the human from Luna. Luna sat on her haunches and watched as Celestia gave a curious look at the human she was holding. Curiously, and with some pride on the line, Celestia stuck her tongue out and gave the human a good lick across it's chest. She froze as a sudden burst of taste erupted from her mouth with a small waterfall of drool falling. She then gave the human more lickings, wanting more of the taste and almost lost control of herself. She took the human inside her mouth, only it's feet sticking out, and she began to take in the full taste, moaning to herself. The Human inside grumbled as it slowly began to open it's eyes, feeling the warm breath from the back of the princess's throat hitting it's eyes, the dominating sound of Celestia moaning, and the rancid smell of her breath with a hint of cake in it. Before it could open it's eyes and react to what's happening, Celestia tilted her head and swallowed the human whole. She smacked her lips and rubbed her belly, feeling the human land in her stomach, followed by the small screams and running of the human, which made Celestia giggle as it was ticklish. Luna had a smirk across her face and brought the rest of the humans to Celestia.
"...Alright, sister. You're right. These are really delicious!" Her horn glowed and she took the rest of the humans. "I wonder what they'll be like with tea and cake? I should send some of my workers to get more in the future!" Celestia walked away with the small human, placing another in her mouth before swallowing it whole as well. Luna heard her stomach growl and rubbed it.
"Don't worry, Mr. Belly, we'll get more soon." Inside Luna's stomach, there were skeletons floating in it, all slowly dissolving by the stomach acids. The six humans Luna had last night were digested in their sleep. Luna never did tell them that the shield spell only worked was when she was still awake, but due to how they made her feel full and how relaxed they all were, they didn't matter at all. Luna looked at her mane, seeing six new stars in it, though only one of them glowed much brighter than the others. She casted a spell that made their spirits turn into the stars in her mane, as a way to live on in the afterlife. "Welcome to Equestria, Emily. You were quite the treat."
Luna walked ahead and into the throne room, seeing Celestia finish a cake with one of the humans on it, chewing the cake while avoiding the human inside, but swallowing both. One of the humans came out of Celestia's tea cup and tried to climb their way out. Celestia giggled as she levitated the cup over to her face.
"And where do you think you're going?" Celestia teased "I'm almost full, you know." Her lips perked as she placed the rim of the cup to her lips, pouring the tea into her mouth. The human desperately swam it's way to freedom, but it soon fell into Celestia's maw, falling to see where it was going. She closed her mouth and swallowed the human easily, letting out a sigh of relief as she was full. She patted her belly in comfort, letting out a small burp, but covering it.
"How were they?" Luna asked, taking a seat next to her sister.
"Very good. They add so much more flavor."
"Ah. I better try that soon."
"But sister, What happened last night? Why did you taste these humans?"
"...Would you believe it was an accident?"
"...Yes. But how?"
"One of them was a piece of candy."
"Ah. I see. They are ticklish, don't you think."
"Yes, they are."
"I do wonder though, what would Cadence think of them?"
"Those were my same thoughts."