YouTube has ostensibly been battling content of this kind for years, but its efforts remain ineffective.
Twister, as with yoga challenges and gymnastics, is one of the most popular themes with the paedophiles on YouTube.
The video has almost two million views.
On YouTube, a network of paedophiles is hiding in plain sight
Comments on videos are often little more than timestamps that direct people to sections where exposed genitals can be seen, or when a child does the splits or lifts up their top to show their nipples.
This video was monetised with pre-roll advertising from Shen Yun YouTube.
Description: Many of the comments are too upsetting to reproduce. This video was monetised with pre-roll advertising from Shen Yun YouTube.