Miller posed for the 2013 Sports Illustrated swimsuit issue wearing a painted-on bikini, which is why she is so familiar with the process.
This is what we learned from the video:
Secret #1: Paper Towel Is A Model's Friend
Any part of a model's body that won't be airbrushed must be covered with paper towel. As Miller says, it's "kinda ghetto."
Secret #2: Butts And Breasts Will Get Shaved
And not with soap and water. DRY.
Secret #3: Flaps Are Used To Cover A Model's Nether Regions
Secret #4: Models Get Rubbed Down
Perhaps it's time to change jobs and become a photographer's assistant.