celestia never say no to same fun but not if is hurt the feeling of other! this why she a great teacher and a great princess! luna see her as her role model! this is the reason she work hard to be as her equel, celestia work to not only for her subject but to not let dont her sister and other memenber of her family! luna,cadance,twilight,shining and flurry! oh and off this excuse as a prince , prince blue blood!(no brony like alter what he a done to rarity)