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Celestia laugh warmly as she sat up and lower her wings a little to give the two fillies some room to get out. They stayed laying in her wings though, it was a habit they picked up when they were still foals. She would curl them up in her wings and hold them against her when they would cry, and it would always stop their tears right away.
After a full afternoon of playing in the garden behind the castle, they had expelled much of their energy and had to take a small break. Both letting out a cute yawn as they snuggled into her wings. She love her little fillies as much as she loved Luna. They alone made it more than worth the trouble that came when the true came out.
Things actually went as good as they could have hoped went the truth became known. When they first made the public announcement as to their new relationship and of her sister's pregnancy, quite a few were upset, calling them sick and disgusting, some even wanted them to step down from the throne for this. But as they were the ones in charge of moving the sun and the moon, they couldn't really just kick them out as they were important to Equestria and its harmony.
Still a good number of ponies did find it distasteful and crude, many of which were upper class ponies that argued that they should marry into one of their families instead. But after we explained how we couldn't love a pony that wouldn't last as long as we, a few managed to understand and get past how wrong it was.
It wasn't until somepony made the mistake of walking up to Luna and demanding that the pregnancy be terminated, scaring her half to death in fear for her unborn foals, that Celestia got enraged for one of the few times in her life.
After ponies saw the holes burned through the thick stone walls of the throne room from that day, many of those that still disliked the thought caved and gave up.
In the end they were able to keep their stations as the two rulers of Equestria as no one could think of a good reason as to why this would affect their duties as princesses. And when Dawn and Dusk were born the next year they were both given the title of princess as well since they were both alicorns. Luna and her named them for what they truly were, the accumulation of both the day and night.
They did want to be married, though it was still technically against the law to marry in the family. But they decided that they shouldn't push their luck, they could work towards that once things settled down after a few centuries.
In raising both of her foals, Celesta found that she loved being a parent. For most of her life she cared about other ponies and treated them all with love, but to actually have foals of her own made her realize just how much she wanted to be a real mother.
And she cherished each and every moment with them.
“Mom?” Dawn asked quietly from under her wing.
“Yes honey?” She said, coming out of her thoughts.
“When did you know you loved mother?”
The question caught her of guard somewhat, but her memories of her past filled her thoughts as she thought of all her moments with Luna. “I have loved your mother for a long time... Since I was even your age.”
“Since you were still a filly?” Dusk asked, to which she nodded.
“But how did you know you loved her?” Dawn asked curiously, causing her to smile a little at the thought.
“I knew that I loved her for many reasons. When she was around it always made me happy, being able to do things together with her made me happy, even seeing her happy made me happy. I would always be looking out for her and I enjoyed being there for her when she needed me.” As soon as she said that, her face fell into a frown which didn't go unnoticed by the two. “But it took me a long time to finally tell her how I felt, and I wish I would have told her sooner.”
“Sooner?” Dawn asked, tilting her head to the side.
She nodded slowly. “Because I couldn't bring myself to tell her how I felt, I almost lost her forever... And I wasn't there for her when she needed me...”
She couldn't keep from choking up at the end a little from what she could have lost. She worked everyday to make up for what happened because of her hesitance, but it would never be enough in her eyes. She could never replace the time wasted, she could only make sure that she didn't make the same mistake again and help her keep her daughters from making the mistake as well.
“So I want you both to always remember, that no matter how somepony might react to your feelings, you must never hide them away... Because not only will they cause you pain for every moment you leave them unheard, but you may end up hurting the one that you tried to protect by keeping them secret.”
As she said that last bit, a tear fell down one of her white cheeks as she thought about Luna and all the hurt she caused because of what she hid away. But she was brought out of it as she felt her to fillies move under her wings.
“Don't be sad mom.” Dawn said, as she started to nuzzle against her neck, unsure of how else to make her mom feel better.
Dusk also nuzzled her, holding her tightly beneath her wing. Celestia couldn't help but smile through the tears as the two tried to comfort her and gave each of them a little nuzzle of affection back as she let out a little sigh of happiness.
“My little fillies.” She said quietly as she held them close. Content with just holding her little children under her wings.
“You know, my faithful student once wrote to me, 'Being a good friend means being able to keep a secret, but you should never be afraid to share your true feelings with a good friend.'” She quoted from one of her student's letters.
“What does that mean?” Dusk asked, look up at her with big adorable eyes.
Celestia's smile widened a little as she took the little filly along with her sister up in her forehooves. “It means that you should never leave your feelings bottled up inside of you. It is better to let them know and be turned away then to live your whole life wondering what could have been. And if they truly care about you, then they will always be there for you, no matter how big the secret is or how much it may change.”
They both seemed a confused at what she said but nodded anyway. She smirked at the two.
“It means, little ones, that you can keep your secrets; but you shouldn't hide who you are and how you feel inside to the ponies close to your heart.”
She laughed as both of the fillies' eyes grew to saucers and they both made little oh's as they finally took in what was the most valuable and costly lesson she ever learned in her long life. Ever since that day she has learned how to let her emotions show every now and again. After all, if she couldn't show her feelings to her own children, then who else?
“You both mean the world to me and your mother... Don't ever forget that.” She said holding them tighter and tucking her wings around them like a blanket. They both snuggled closer to her happily under their mom's soft wings.
They stayed like that for a while until Celestia's head lifted as she heard the sound of beating wings. She looked up to see, though she already knew who it was.
“So where are our two precious little ones?” Said the blue alicorn as she touched down in front of her, a slightly worried look on her face but not a fearful one as she knew that their mom was watching them.
“Here mother!” They both answered as they poked their heads out from behind her large white wings, smiling at her as she landed. Luna gave her wings a few extra flaps before folding them at her sides.