Even without that extra layer of clothing, one needs to look at Arabian belly dancing costumes in a realistic light. Even the most risqu costumes consist of a bra that covers the breasts and a skirt which, at the very least, covers the pelvic region. All of a woman’s sex organs are covered, and often in a much more thorough fashion than one can see at their local beach. If bikinis aren’t considered to be indecent, belly dancing costumes that usually consist of much more fabric shouldn’t be a problem either.