Ordo Templi Orientis
The Ordo Templi Orientis (O.T.O.) ("Order of the Temple of the East" or "Order of Oriental Templars") is an international organization founded at the beginning of the 20th century. Inspirations include Freemasonry and various associated esoteric and/or occult systems. The occultist Aleister Crowley is the most known and most influential member. The higher "degrees" of the O.T.O. involve "sex magick".