C1992 To Discover the Aboriginals

The protruding tailbone forced her to lean forward so that the pattern of her navel was concealed, but when she went in and lifted her bent tailbone with all her might, the gaudy, stylish pattern was still startling.

Her navel was much bigger and rounder than other people's. Her navel was not concave but protruded out. Its shape was also a little like a child's eyes that had not slept full yet