And now tell us, dear expert, who and why danced the belly dance?
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Have you tried the relevant literature to google-look, and not communicate your erotic fantasies from under the anonymity?
I'll tell you: it was danced (mostly women, but also men) to heal and maintain physical shape. The girls were trained to the branch, which developed the necessary muscle groups in childbirth and adjusted the respiratory system (and Eastern women had to give birth before bleeding from a fairly young age).
That popularized "Eastern dance" that you are taunted by snorting Gypsies arose only in the nineteenth century and not in the east, but in the European cabaret, when it was in fashion STYLIZATION under Eastern culture.