It started out innocently enough. Rainbow Dash received a prank love letter, and decided to laugh about it with Applejack. Problem is, it wasn't a prank; and Applejack had been the one who sent it.
Now Applejack has disappeared, and Rainbow Dash is determined to find her and bring her back.
Because they're friends. Yeah. Friends.
Special thanks to TwilightUCrazy for the idea and invaluable suggestions for this story.