Alternate universe where pony Sunset is an alicorn princess and pony Twilight is a reformed villain (so, that means that pony!Sunset and pony!Twi have switched roles), human Sunset goes to Crystal Prep and the rest of human Mane6 are her “friends” and pony Twilight in EqG world goes to Canterlot High and Indigo, Lemon, Sugarcoat, Sour Sweet and Sunny are her friends.
 
This is not usual two ponies with switched roles. There is THREE ponies with switched roles and personalities.
 
Trixie → Moondancer → Starlight → Trixie
 
Trixie is Sunset’s schoolfriend and a pony who lives in Canterlot with her friends Amethyst Star (Lyra’s counterpart), Apple Stars (Twinkleshine’s counterpart), Sea Swirl (Minuette’s counterpart) and Sweetcream Scoops (Lemon Hearts’ counterpart).
 
Moondancer is antagonist and the former leader of Our Town.
 
THE GLORIOUS AND OMNIPOTENT Starlight Glimmer is a travelling magician and “The most magical unicorn in Equestria.”