I’ve seen this video many times. I’ve always felt it was “real” but as you point out it’s authenticity was highly debated at the time. My main reasons for thinking it’s real were 1) it was never monetized or used to promote anything 2) she blurs his face but not really her own 3) it was edited down and 4) she didn’t post it on the normal bb sites

As a bb “connoisseur”, it never much mattered to me. If it’s staged, it was well staged. Movie bb scenes are obviously fake, but I still greatly enjoy them.

One thing I do find interesting, a British Domme sells a clip of an almost identical scene that she positions as real. My guess is hers is staged and based off the original, but again not really sure. https://bustingstacy.com/product/a-date-with-my-knee/. A lot of her content is very extreme which is not my cup of tea (pun intended) but I’ve always wondered about how much is real based on this clip seeming to be a reenactment of the video you linked.