I DON'T OWN ANYTHING! What if Twilight had a little brother who went to Ponyville with her, what if he was a dark coloured Pegasus
Twilight was sat down under a tree along with a very dark blue Pegasus colt nuzzled up against her. The young colt had a messy black mane with a white highlight going down the sides of it, his tail was pure black, and his eyes were light blue like his mother, and unlike the rest of his family he was a blank flank, he also shares the same love for the night sky like his father.
"So Twi' what you reading?" the young Pegasus colt asked his big sister. "Am reading about Equestrian history, I just found something that I might need to take a closer look at" Twilight said as she put the book away in her saddle bag and got up "Come on Night Sky lets go home" Twilight said as she began to trot off. "Twilight! How many times do I have to tell you! Call me Night or Sky!" the colt known as Night Sky but we'll call him Night for short. "Okay, okay, okay, I'll call you Night then" she said. Night looks up with his eyes close, he slightly opens one of his eyes and stuck his tongue out, Twilight stuck her tongue out back at him.
Some time later Night found himself on a chariot heading towards Ponyville, he can't remember how it happened but Princess Celestia made Twilight the overseer of the Summer Sun Celebration and he was to help her incase anything went wrong.