And Now For Something Completely Different

Ok on this one I have decided to step out of the box, this item is non related to porn, UK porn news, or anything on that subject but this video is so nuts I wanted you to see it.
How do they do the spikes? I'm sure doing this to yourself causes brain cancer and shit, the boobs are cool though...
Click HERE for this vid and feel free to leave me your comments!
Layla Jade xoxoxo