The keywords of this video can already tell you the story: rope bondage, bone/ball gag, blindfold, nipple suckers, plastic bags, pantyhose, breathplay hood, vibrator, orgasms…
Yes, your guess is right, Xiaomeng was enjoying the pleasure brought by the vibrator throughout the video, while her head was sealed by plastic bags (B) and pantyhose (P) in different numbers of layers and combinations, such as B+P, P+B, P+B+P and P+P+B+P. She also tried a new breathplay hood on top of pantyhose, which has no breathing hole!
There were a lot of screaming and orgasms! At the end she stopped breathing and I thought she was blackout again, but it turns out to be that she was too tired and decided to mimic a blackout so that I can release her earlier… Her trick worked but next time I must punish her because of the cheating!