This joke seems like something that could have come from family guy: "the paintbrush is on the canvas." american dad: "you can't kill me! I know where the canned food is kept!" or the simpsons: "I don't know if I want to bring my kid into a world filled with MY KIDS."
CupcakeCrazy43Featured By OwnerJun 25, 2013Hobbyist Filmographer
Actually twilight and pinkie are best friends fluttershy and rainbow dash are best friends and applejack and rarity are best friends. Think about it: RD and FS: Multiple episodes actually AJ and Rarity: That sleepover episode PP and TS: Feeling Pinkie Keen
I think she would totally accept... and then Twilight would give her a book on pregnancy, and she would see how complicated ensuring the health of your foal is (especially the careful eating patterns), and then back out.