A comfortable fit with an assist ....
The videos of forums favourite self-bondage artist Guisi are regularly uploaded to asian-bondage.com.
While browing the other catagories/"studios" (most of which are discontinued or not as intriguing to me personally), I found one bondage duo that stood out from the rest and might be of interest to some of you folks here as well.
http://asian-bondage.com/category/zhua/
A slender tv/crossdresser in tight bondage and some nice latex outfits, covering various kinks (latex, vacbeds, breathplay, plugs, vibrators, petplay) with a competent, occasionally slightly sadistic rigger.
High quality videos, often in 4K, resulting in rather huge file sizes that require 24+ hours to download via the "free" hotlink access.
Updates occur about biweekly.
Some impressions below.
^ That chair tie looks nice, you can helplessly swing your legs right and left.