There is a trick that involves apparently swallowing a long balloon, but it is a trick.They don’t bring it out again.
I am impressed with this lady and her skill:
Rockbitch
Rockbitch was a UK band that performed nude and included sexual acts in their performance.
Here’s a link: https://www.pornhub.com/view_video.php?viewkey=ph5afc20a4b9f27