Meanwhile it looks like what Marie is undergoing is not at all pleasant.
(Click on the image for larger size. 
Commencement: Chapter Four, Page Twenty-One written and commissioned by Dr. Faustus of EroticMadScience.com and drawn by Lon Ryden is published under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.)
Took me a second to realize what’s going on here.
Bar coding! An idea I confess to having stolen from Stephen Douglas’s Slave World series.
Now is the instrument thats moving toward her vagina some sort of vibrator? perhaps to pasify her as she’s being tagged?
It is a depilating device.
Ahh I see.