How do the Stars twinkle?

Luna was shocked "What do you mean" she asked carefully, unsure where Celestia was going with this. Celestia could feel her sister's uncertainty, "Magically, not the traditional way silly, unless you want to?" She teased.

She levitated her book over to Luna who grasped it in her own magic, and instantly found the chapter Celestia was talking about, then raised a questioning eyebrow "what does 'choose DNA from host, and two more of opposing gender' mean?" Celestia paused, she herself didn’t know the answer and was also uncertain about that piece of information.

"to be honest with you i have no idea" she said " but that wouldn’t really matter, if you could have your own foal? Would it?" She questioned, as Luna was pacing around Tia, a habit she picked up from Twilight after her nightmare moon day fiasco. Luna loved foals that was for certain, and having one of her blood would the best thing ever. But if she did get a foal she would have to take maternity leave, meaning she would have to leave Tia with all of her work. Granted if she would get some from outside raising the moon. But Tia

did that for a thousand years, she can handle a few more months. She stopped pacing and arched she’d her back trying to get several knots out, she made a quick mental note to see Fluttershy, she was truly a great chiropractor.

Luna gave one last thought who would be the mare and stallion she would choose, she was thinking Fluttershy or Applejack as for stallion, Big Mac maybe, most likely Fluttershy and Big Mac, wait a minute... " Tia how will we know what type of pony I'll have" Celestia pulled up the page from a chart in her book, " most likely one of the main three, the chances of it being a alicorn are still varied in many ways ,so who knows you might be lucky" Celestia said putting away the chart in its rightful place, "Tia" Luna started "I want to be a mom, and I have chosen the other two, Fluttershy, And Big Macintosh" she said

Celestia smiled "I thought you would choose them" she said pulled two beakers out, one had three pink butterflies on it, the other a green apple cut in half, "Luna you do know that this will tingle a little, right?" Celestia said, Luna nodded Celestia smiled and set up the item, which were scented candles and the beakers.

Celestia's horn glowed, her eyes white with energy and she opened her wings flying up a good five feet before a beam of pure white light over took Luna's systems. She could feel the magic flowing through her, and it was very tingly. Through the light she saw the chest lid move, The tiny blue star floated out of the lid and right to Luna, it stopped and nuzzled her before floating to her chest and into it. She could feel its warmth spreading through her entire being, so warm she could feel herself dosing off she fought to stay awake, so warm.

She feel asleep lulled into it by the warmth of the tiny star, Celestia feel her sister body go limp, but also feel her deep breathing so she kept going. A small pale blue light gently floated out and landed on the thick carpet, then instantly turned into a pile of blankets with the stars and moon on it. Celestia stopped the spell as it ended, slowly she trotted over to Luna and nuzzled her neck.

Luna blinked in a lazy fashion before getting up and stretching, she stopped mid-stretch when she saw the pile of blankets. She cautiously walked over and unraveled the blankets, she felt her heart melt at the sight a pale purple alicorn filly laid on her stomach ,her mane was the same as woona's when she was younger and was a pale blue and faded into a golden orange. And her eyes seemed to shimmer pale sliver but would change to a dark gold then back to silver.

Celestia joined her sister, "Tia" she whispered "Thank you"