I think that because of the different anatomy in males and females, wearing a bikini is slightly inappropriate. A bikini does NOT fully COVER a woman's breasts. Perhaps that was part of the problem, a little slippage and there is complete nudity. I do think that sports bras would be more acceptable or a cutoff shirt displaying the midriff. Or as others have suggested, an easy solution is to allow only face painting (or arms and legs as well). It IS somewhat a double standard, but I can see how it would be offensive.