Shining Armor and Princess Cadance are married, and Twilight couldn't be happier for them. However, there was a time when Twilight wasn't so thrilled to her brother in a relationship. After months of aching waiting, he finally has time from the Royal Guard Academy to visit home – and he drags a girlfriend along! With promises left unfulfilled and love abandoned, Twilight corners her brother and gives him a piece of her.