I'm looking for the video that this clip is from. The clip title is "tickling in the foot models" and looks like it was made by BTS but they do not know about it.
I think there is a clip with part of what you are looking for. Not all the clips they have produced in the past are available there. I myself am still looking for two 5 min clips called: "Claudia set 3" and "Claudia set 5".