Congratulations, Twilight. With Celestia and Luna on their constitutionally mandated vacation, you're in charge of Equestria. The position of Regent is an honored and hallowed one. But maybe it's a bit early to congratulate you. After all, whether it's a nobility jealous of your ascension, or a military unhappy with Celestia's decisions; one thing's certain: your reign will be anything but peaceful.
Cheer up, Twilight. It's not every day somepony changes species. In fact, no pony has ever changed species. Or dealt with the results of that change.
Congratulations, Twilight. With the Princesses on vacation, you're in charge of Equestria. Perhaps it's a bit early to congratulate you. After all, whether it's a jealous nobility or an unhappy military, your reign will be anything but