This is a very solid video for a number of reasons.
As Tommy states, Anna is a 'girl next door' type of model, and it's clear that fetish work is not something she has done, before. Odds are she decided to try the experience out of curiosity. A short 'Why did you decide to try this' interview at the start of the video would have been an great addition to give us a bit more context as to where Anna's head was going into this.
She is a very interactive lee. She's the sort that likes to maintain a thread of interaction with the Ler, and for the viewers who enjoy a lee that does more then just laugh and squirm, Anna is very much what you are seeking. She laughs, screams, talks, and eventually begs. Seeing her move thru the process from "This is an odd but interesting thing to do" to "Fuck! Stop it!" is a nice ride.
All in all the sort of clip that the old timers among us looked for in the 90's and rarely found.
A exit interview would have also been a strong addition here, to see what she thought of the experience, and how it stacked up with her expectations.
Well worth getting.
Myriads