Needle torture is among the most cruel of all bdsm tortures. Play piercing or needle play is an activity involving placing needles through the top layer of skin, or using needles for temporary piercings. Play piercing can produce an intense natural endorphin high which can last for hours or days and can induce orgasm in many of the people who try it. Play piercing is usually made with thin needles , where the needle itself is left in for the duration of the scene and taken out at the end rather than replaced by jewellery. This article is about the main tools of play piercing — needles.