There's a video of some masturbation class on YouTube the circled around reddit a year ago. It was was taken down anyone have the video or a mirror link.
Link to reddit threadhttps://www.reddit.com/r/youtubetitties/comments/3uccqx/real_masturbation_class_warning_pussy_only/
It was also on r/wtf
Link to the thread: https://www.reddit.com/r/WTF/comments/4og9ya/masturbation_class/