Also known as: 深色阴唇
Labia which are notably dark in color, usually in shades of brown to black. Regarded in Japan as an accompanying sign of pregnancy, aging, or "worn out" genitalia, while the more western pink-to-red spectrum is seen as a sign of youth.
Also applicable to any exotic skintone where the labia are actually darker than the surrounding skin.
Use this tag only for images where the labia is fully visible.