"Happy Birthday!" Cadence and Luna said giving a Twiight her first birthday cake of her new life, as she happily ate into it, making a mess, as her ethereal wings and horn glowed brightly.
"Hard to believe the first year is over." Cadence said to Luna.
"And what a year." Luna said. "So many things have happened."
"Like finding you were sent here after being separated from Nightmare Moon." Cadence said.
"Yes." Luna said. "And then discovering the drain on Nightmare Moon was from Twilight's spell, making me her father just as you are her mom."
"You may be her father, but she calls you momma, just as she calls me mommy." Cadence retorted. "It is why your name is on her birth certificate. Well your name in your Zipp Storm disguise."
"True." Luna said remembering how she had come up with the disguise so she would not be discovered by Celestia, too ashamed of her actions that led to allowing the Nightmare to take over., even going so far as too change her coloring. Her eyes then passed over the remains of the elements. "I know alicorns are powerful, and alicorn foals would be a handful, but I wasn't expecting her crying to destroy the dormant form of the elements of harmony to the point that all that remains is the imprint on the floor from their exploding."
"Luckily, they had already been drained by Celestia banishing you to the point of uselessness." Cadence said. "Speaking of crying, I'm glad she finally sleeps through the night. Waking up at random times of the night to her crying was not fun."
"Especially since we had to put her to sleep in specially warded areas so what happened to the elements doesn't happen again." Luna nodded. "Though it was also annoying when we were busy and didn't notice her sleeping in the day, then she would stay up all night long. And for some reason I can sense her dreams, but not enter them."
"Considering she instinctively uses her powers when playing, it is probably her instinctively protecting herself in her dreams." Cadence said. "You did say you once saw a nightmare try to enter her dream, only to be blasted by the shield that stops you from entering and destroyed. At least it just blocks you instead of attacking."
"True." Luna sighed. "I just feel like I am failing at being unable to enter her dream. I am the guardian of dreams after all. And it could tell us if she still remembers being Twilight, or if she only remembers being Sunny."
"We'll just have to wait." Cadence said. "She's starting to talk now, so we can ask her soon. No matter how worried the answer makes me we need to know."
"True." Luna said. "So Pipp, you've got another foalsitting job tomorrow right?"
"Yeah." Cadence said. "Granny Smith has to take Applejack and Big Macintosh to the doctors for their check up. Apple Bloom got hers last month while they put it off to help on the farm. So I'm watching her. It's a good thing you have the day off tomorrow so you can watch Sunny. While we learned she can make the wings and horn appear and disappear at will, she is too young to keep them hidden, so I can't watch her as well."
"True." Luna sighed. "I still have no idea how I became librarian. All I did was look through the books in the abandoned library for help adjusting to modern Equestria, only for the others ponies to come, me help them, until I somehow became the librarian. Still like your foalsitting jobs, it helps us pay for the food and supplies."
"Still even with everything raising her is fun." Cadence said.
"Agreed." Luna noted before they rushed to Twilight when she finished the birthday cake and started trying to fly away.
you can also say that thanks to her proficiency in mid magic she just copied the information on modern speech from a random ponys mind, that is also a good explanation for why she is speaking "normally"
I will say around 4 to 5 years old for her to be able to hide her wings and horn and 6 to 7 for her to start school, sure with it being Twilight she might be able to start already when she start talking but if Twilight does that she might draw attention to herself
other important questions would be, how is explaining the disappearance of Cadence and Twilight in Canterlot? Also knowing when Rarity moved to Ponyville? Then she was wondering if she brought Sweetie when she moved out or her parents sent her after her? Will Scootaloo have her parents in this story or will she be an orphan? Cadence will come to see Luna as a loving couple? The same with Luna towards Cadence?
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Thanks that helps. Now I just have to figure out what age is the thousandth sun.
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You will see some of the reaction next chapter, it just takes a while for the news to reach them, especially since the information is overshadowed by the damage, which the news would think is more important. I will say Rarity moves to Ponyville when twilight is around 3, and Sweetie when Twilight is 5. Give Rarity a bit of time to settle in. I'm not sure about Scootaloo actually I think I will poll, and depending on the answer decide then. That might actually be what gets them out of the forest, and living in Ponyville if the adopt Scootaloo. As for Cadence and Luna becoming lovers, I am leaning that way.
What a perfect example of maid and butler dialogue.