The girl to be 'danced' is
led back from the bush to her mother's hut where she is kept in
solitude to the morning of the dance. On that morning she is
placed on the ground in a sitting position, while the dancers
form a ring around her. Several songs are then sung with
reference to the genital organs. The girl is then stripped and
made to go through the mimic performance of sexual intercourse,
and if the movements are not enacted properly, as is often the
case when the girl is timid and bashful, one of the older women
will take her place and show her how she is to perform. Many
songs about the relation between men and women are sung, and the
girl is instructed as to all her duties when she becomes a wife.
She is also instructed that during the time of her menstruation
she is unclean, and that during her monthly period she must close
her vulva with a pad of fibre used for the purpose. The object of
the dance is to inculcate to the girl the knowledge of married
life. The girl is taught to be faithful to her husband and to try
to bear children, and she is also taught the various arts and
methods of making herself seductive and pleasing to her husband,
and of thus retaining him in her power." (H. Crawford Angus, "The
Chensamwali," _Zeitschrift fuer Ethnologie_, 1898, Heft 6, p.
479).

In Abyssinia, as well as on the Zanzibar coast, according to
Stecker (quoted by Ploss-Bartels, _Das Weib_, Section 119) young
girls are educated in buttock movements which increase their
charm in coitus. These movements, of a rotatory character, are
called Duk-Duk. To be ignorant of Duk-Duk is a great disgrace to
a girl. Among the Swahili women of Zanzibar, indeed, a complete
artistic system of hip-movements is cultivated, to be displayed
in coitus. It prevails more especially on the coast, and a
Swahili woman is not counted a "lady" (bibi) unless she is
acquainted with this art. From sixty to eighty young women
practice this buttock dance together for some eight hours a day,
laying aside all clothing, and singing the while. The public are
not admitted. The dance, which is a kind of imitation of coitus,
has been described by Zache ("Sitten und Gebraeuche der Suaheli,"
_Zeitschrift fuer Ethnologie_, 1899, Heft 2-3, p. 72). The more
accomplished dancers excite general admiration. During the latter