Hello me again just letting you know I'm adding Galaxy Star (meh oc) into ALMOST every mlp book, so please don't hate me!
Midnight Shine's PoV
It's been a month since me and Sugar became friends, she's become a better pony! "Come on Midnight! You are meeting that new pony to our great town!" Sugar called me to follow her
I happily trotted after her, to meet this new pony, uhhh Princess Galaxy Star??

*Time skip*

As I walked through the halls of Celestia and Luna's castle in Canterlot (it's night time) I notice all the walls were different, I even found a window with a princess who looked similar to Luna, I mean her coat and eyes were like Luna's but her under her ocean blue eyes were three white dots on each side of her light navy blue face, her mane and tail were a beautiful purple galaxy colour and was long enough to touch the ground, her horn was curved a bit, her wings were a light navy blue colour with white and purple at the tips, and lastly her cutie mark was like Luna's cutie Mark only she had star's on her flank and down her back legs.
I walk through a beautifully, night decorated room and onto the balcony where I saw her:

"Ummm excuse me?" I got her attention "how may I help you?" She asked, her voice was I bit higher yet lower than Luna's voice, she sounded serious, but also as if she had a playful side "I'm here to escort you to Ponyville, I'm Midnight Shine!" I explained "I see, we will leave tomorrow, get some sleep, you will need it!" Galaxy winked at me, and gestured for me to follow her

*time skip*
"Your room Sir Midnight Shine!" She said opening the door to another beautifully night designed room
"Hey umm Did you decorate the rooms?" I asked "I'm afraid not, Luna decorated half the castle's rooms and Celestia decorated the other half of the castle's rooms" She explained
"Well Goodnight Sir" She saluted then giggled "Night Princess" I bowed then laughed myself, once Galaxy left the room, I got a book out and wrote to Flamira (it's like Twilight's and Sunset's books)
Dear Flamira, I have arrived in Canterlot and found Princess Galaxy Star, she said we will leave Tomorrow morning so I'm in a night decorated room, she is just as beautiful as the picture we have of her, I think I have fallen in love with her Flamira!
From Midnight Shine
I layer down on my bed and sighed dreamily, I think I have fallen in love with a princess
My book vibrated and I read what Flamira wrote back to me
To Midnight, good on you mate I knew you would find love some day
Wait! I have a ship name!!!
GalaxyShine!!!!
Or
MidnightStar!!!
Which one?? Tell me tomorrow when you get back G'night Midnight!
-Flamira Flames OUT!!
Ohh ok  GalaxyShine? or MidnightStar?
I like GalaxyShine "hey umm you ok? And what's GalaxyShine and MidnightStar?" A familiar voice said
Crap "ummm they are my friends!" I lied, she came up to me and looked directly into my green eyes "ok!" She happily said and walked off, probably back to her room, I exhaled and laid back down on my bed and slept the rest of the night