My Little Pony: Friendship is Rational
@USBhump i googled that and got this
http://lesswrong.com/lw/e1g/a_rationalist_my_little_pony_fanfic/
@boots I think you would also love for this to become reality: http://ideas.wikia.com/wiki/Crossover_Legend_(story)
(I tried to find the promo for the pure Jerkcity/MLP crossover and can't find it. It was something like “What will Spigot, Pants, Deuce, and Rands do in the magical land of Equestria? What will Twilight, Appljack, Rarity, and Fluttershy do in a San Franciscan men's room?”)
