Pinkie Pie: Can't tell ya that, silly! It's a secret! Now that Maud is heading out to get her rocktorate in rock science, this may be our last chance to trade them for a really long time. I can't wait for you all to meet her. I just know that my best Ponyville friends and my best sister friend are gonna become bestest friends! We can make bestest-est friend rock candy necklaces together! She expresses herself through fashion just like Rarity, and she's really smart and loves reading just like Twilight! And she's honest, and loves forest things, and is good at games, and... Well, oh, she's awesome!