Vexen is in the Hall of Empty Melodies with Vainya. He is constantly pulling her hair.

Vexen: Ah… pulls Vainya’s hair

Vainya: For the fifth time stop that!

Vexen: It’s so… interesting.

Zexion walks by

Zexion: Vexen, what in the hell are you doing?

Vexen: It’d be best you mind your tone number six.

Zexion: sighs Fine… what are you doing to Vainya?

Vexen: Have you ever wondered why some you have hair colors that are out of the realm of natural hair color.

Zexion: Um… Vexen we’re nobodies. There’s probably some process of color inversion involved.

Vexen: Color what?

Vainya:… inversion you know when color is the opposite of what it was…

Vexen: Ah… interesting.

Zexion: You didn’t know that? That’s basic—

Vexen: Number six I’m a scientist, not an artist! Ah but Vainya, her hair is often different colors. What is she doing?

Vainya: Um… it’s called hair dye.

Vexen: Hair dye? And where can I get some of that?

Vainya: Beauty stores. she walks off

A few hours later, Vexen appears with all different colors in his hair.

Vexen: Ah how beautiful!

Vainya: Um… that’s not how it works, you’re supposed to pick one color.

Zexion:  laughs Yeah. Hopefully this result is washable.