Not as dirty as it sounds...

The video's entitled "Penis and Pussy", but don't let that put you off - it's a crafty attempt at misdirection, as although the images the artist draws in this film start off looking like the aforementioned body parts, as he continues drawing the image becomes completely innocuous...

http://www.youtube.com/watch_popup?v=KuSWqJ7sevM

...just don't follow the related videos, as YT highlights the inadequacies of automatic algorithms...

(Another oddity - I suspect the artist may be right handed, but he's flipped the video...)