The koteka or penis sheath is traditionally worn by male natives of some ethnic groups in New Guinea to cover their genitals.
A cache-sexe is an item, often a small garment, that covers its user's genitals. 1 The most common style, seen in Western G-strings and JapaneseFundoshis, has a triangle of material (cloth, beaded strings, etc.) attached at the corners to straps or strings around the waist and between the legs, that fasten the triangle over the genitals.
Cache-sexes have various social intentions, including the wearer's practice of sincere or enforced "modesty", legal and/or customary restrictions within the context of intentional eroticism, and adding fetishistic or playfully teasing aspects to intentional eroticism. In Western cultures, for example, G-strings appear as swimming attire; for many erotic dancing venues, as the final state of undress, set as the polite and/or legal limit; or as a garment whose removal is one of many steps of a striptease, each existing to provide an increment in the viewer's sexual arousal.
The penis gourds of tribal New Guinea, and cache-sexes of some other tribal cultures, are often perceived by Westerners as self-evidently obvious forms of sexual display, but described by their wearers as a practice providing privacy.
