This appears to be 1) new and 2) genuine. I felt badly for the young female being drained. The part of your back closest to your tailbone can be the most sensitive nerves and the least able to be numbed effectively for surgical procedures or things like tattoos.
Please post if you can. I think it is a bit more ‘adult’ in nature since it is the area of the tailbone and bottom cheeks, but the surgical drape and nurses make it feel clinical instead of abrasively naked.