Play piercing as part of a BDSM scene can produce an intense natural endorphin high which can last for hours and can induce orgasm in many of the people who experience it. The experience of multiple piercings in an eroticly or spiritually charged context is qualitatively very different from the experience most people have had with phlebotomists in medical settings, in part because the needle is placed 'through' the skin at a tangent so that both ends are accessible, rather than 'into' the skin.