"Build... makeup on top of...?" Jungkook blinks, glancing up with a wholly confused look. For all that he knows about makeup, there's some stuff that you can put on your skin to hide pimples and stuff, then there's blush that you can put on your cheeks to make them pink, lipstick if you want it, and like... eyeliner and eyeshadow? Which are different in that one makes the clear lines and the other's basically just softer colors?

But building makeup, that sounds new and weird.

And mattifying goes over Jungkook's head entirely.

"Hyung, I'm not sure I'll really understand any of this," Jungkook admits, though he flips the cap off of the sunscreen and squirts a pretty conservative amount into his palm.