Twilight smiled at Rarity’s exuberance.  To any other pony, her behavior could often be misconstrued as conceited or snobbish.  But any of her friends would testify that there was nothing further from the truth. One would have difficulty finding a more giving or charitable soul in all of Equestria.  Twilight knew that Rarity was only trying to help her unwind the best way the fashionista could.  