This is, uh….Well, I haven’t quite figured out what her name is.
 
She is the daughter of Sunset Shimmer and Rarity. Always one with a liking for tall mares, Sunset was instantly smitten with the fashionista, as soon as she returned to her world. That story will be elaborated on, but for now, just know that Sunset is back in the pony realm.  
This little lady isn’t the best at dealing with attention, and the fame she got from her parents was nearly tossed away when ponies realized just how unsuited she was. Sure, she liked fame, but she wasn’t all too great at actually handling it.
 
Then came Blue Moon, swooping in to save this poor mare from social suicide. Blue took her under her metaphorical wing and began coaching her, teaching her the ins and outs of fame, money, and power. The two are quite the popular duo, often seen wandering Canterlot (and raiding pubs, under disguises of course) and causing trouble.
 
Base by JeffaPegas