I have had a couple bad experiences with that youporn site.
Sometimes a pop up will appear notifying you that your flash player needs updating. When you click the popup to close the page, a page shows up with that Ukash shit that puts a wallpaper over top of your desktop. I have the tool for ridding of it, where others would cost $100 for a computer techie to remove it.
Really?? Dont click Pop ups! You are a Nerd?