Except that they are attached to hipbones. That they have other uses, for example as an aid to mating, is not only not a problem, it's to be expected.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'
