Twilight Sparkle finds a magical book and shows it to the other girls. However, upon reading it, the book casts a curse on the girls, having them permanently bound and gagged in sacks for eternity. However, instead of trying to find a way to break the curse, they actually grown to like it. Plus, the curse comes with it's perks, including that they will never starve or thirst to death, the sacks that they are permanently bound in are extremely comfortable, and the curse grants them eternal youth and immortality so they will live forever. So then, the Equestria Girls decided to stay permanently bound and gagged forever and enjoy it together as loving couples. As they do, their hair grow super long, which indicates that they've been staying bound and gagged for a very long time. However, they never bother cutting them as they love to keep their hair very long. Since then, the Equestria Girls live happily and permanently bound and gagged for their eternal immortal lives
