What I can share is her bj technique is somewhat unique. The first 4 minutes is one technique. Then, a similar but different one begins at about the 4 minute mark. I am not 100% certain about it, but that 2nd technique, appears very similar to one that was used by only one lady I encountered. I did receive the technique from her 4 or 5 times. Basically, she would pretty much render me helpless. Place her lips on the sweet spot of my cock, take her tongue and swirl it around the head of my cock, while taking a finger or two and running it slowly and slightly up and down the top half of my shaft. All at thev same time. The feeling was sensational. I could never last more than 4 or 5 minutes. She was a highly skilled pro. Not certain if this lady was making use of the same technique or not.
Interesting to me what a large quantity of different takes or likes and dislikes of this video have been given over the past year. Today was my first viewing of this video and I am not sure about it. However, with nearly 300 like of it n a year, many seem to like it.