"What possesses people to do this?"
What possesses people to watch this?
If nodbody was watching, they wouldn't be doing it.
Don't believe for a second they're Canadian. They look like a typical group of Romanians that have taken over that site. They say they're from some other country like England, Canada or even the U.S. Look around the room. Look at architecture, doors and windows and light switches and electrical outlets. You can clearly see whether someone is in North America or not.
I've seen this fetish on other sites, and wonder what these women are thinking. Do they want their babies to be born with herpes, or god forbid a more serious std?