"This sure doesn't look like home, Rick. This looks like some pony version of a big city." Morty said.
"That's because it is, Morty." Rick said, "They call this place Manehattan." "They couldn't have just stuck with regular Manhattan?" Morty asked. "Like I said, Morty, this place has places with names that have something to do with ponies. You saw it in PONYville, CANTERlot, and now MANEhattan. I wonder if this Equestria place gets even weirder the farther you go. And I bet we're bound to find out until my portal gun's up and running again."
In Canterlot...
"Humans?" Princess Celestia said, "Rick and Morty? I am sorry, Twilight, but I know nothing of the sort."
"I thought so." Said Twilight Sparkle, walking off, "C'mon, everypony. We're heading home."
"Halt!" Princess Luna said in her Royal Canterlot Voice, "Humans are a forbidden topic, but if you want to know, Princess Twilight, then I know about humans."
"Yes, Princess Luna." Twilight Sparkle said, "I don't only want to know, I need to know."
"Then, I shall tell you." Princess Luna said, "Perhaps you knew about the two humans who arrived in Ponyville recently. Those same humans also showed up in Canterlot and I think they were afraid of my Royal Canterlot Voice because they got out pretty darn quick." She laughed and Twilight Sparkle did too. "I do know about that." She said, "And we were very confused at that time. We had no idea what was going on. I just figured that you two did as well, but it seems not." "Oh, we were too, of course." Princess Luna said, "But, I thought I'd never live to see another human again." "Whatever do you mean, Princess Luna?" Twilight Sparkle asked. "Yes, you never told me, sister." Said Princess Celestia.
Princess Luna sighed.
"It was when I first became Nightmare Moon..."