While Pinkie Pie and I are having a month-and-a-half-long slumber party, the TB bacteria infects Rarity and a lady at my family's church in northeastern Oklahoma, and then causes a MASSIVE outbreak in both our world and Equestria! Once we hear about what's really happening on the news, Pinkie, Fluttershy, and I go to Oklahoma only to find my entire family infected with the contagious bacteria. Read to find out what happens after that!
You forgot to ponify Oklahoma?
5588954 The ponies are in the human world currently, so Oklahoma is not inhabited by ponies.