Pony Thought of the Day: Cutie Mark Switcheroo, Part Two

Given that who got which cutie mark in "Magical Mystery Cure" was pretty much certain, the order in which Twilight helps them is set, too. Each pony is freed by their willingness to go against their destiny and try something alien to help a close friend, and whoever is last needs to help someone outside the Mane Six. I guess some of the big sister relationships would work for that, but the show's is about friendship, rather than family, so really what's needed is for the last pony to have friends other than the Mane Six--which pretty much means Pinkie Pie.