As the new ruler of Equestria, Twilight must learn one last thing from Celestia--the secret to the wavy mane.

And it's not what Twilight expected. At all.

Just a little impulse write I did in less than 2 hours. Hence, the proofreading may be a little spotty.

Somewhat inspired by my real life experience with a vibrating neck massager...

Contains no series finale spoilers.