Twilight: "Hey, that's my book!"Trixie: "The Great and Powerful Trixie wishes to read it."Twilight: "I picked it up first!"Trixie: "Well, if you didn't want someone else to take it, you should've held on to it."Twilight: "I was levitating it in front of me!"Trixie: "Doesn't count!"Twilight: "Give. it. back!"Celestia: "Girls, there are at least three more copies in the library."Trixie: "But Trixie wants that one!"Twilight: "I had it first!"Celestia: "Doctor, how long until the effects of the Fountain of Youth wear off?"Doctor: "Based on how much they must've swallowed when they fell in, and their current age, hm... about 25 hours, give or take."Celestia: "Sigh... It's going to be a long day, isn't it?"Something that popped in my head during a talk with . We were discussing our recent art exchanges , which involved Twilight and Trixie in one picture, and Whooves in two others. Celestia got brought up as well, and my brain just put everything together. The background story was originally just going to involve the Doctor happening to travel back in time to when Trixie and Twilight were fillies, but the above version seemed funnier.Derpy was added as a bonus. Not entirely sure why she resembles a cat. Also not sure why I felt like adding that pipe, but it worked out alright in the end.The ponies are all Hasbro'sSleep deprivation is all mine (time of upload: 8:25 AM). At least it's productive sleep deprivation, for once.Enjoy.P.S. Bonus points if you spot all the Easter eggsEdit: Fixed the Doctor's left eye