Talk:Flight to the Finish/@comment-5002336-20131208222650/@comment-2170890-20131211182255

Well, they've always kind of had an "unspoken bond" - The Show Stoppers and Cutie Mark Chronicles for example. In fact many bronies thought they were sisters because they kind of... go with each other. It was made more official in Sleepless in Ponyville, but it was always implied in the show, and the fans were waiting for them since then.