It comes after a woman who was thrown out of an open-air pool for sunbathing topless took legal action. Berlin's swimming pool operator, the Berliner Bäderbetriebe (BBB), has not actually changed its rules, which insist that a bathing costume covers the genitals. Berlin's swimming pool operator, the Berliner Bäderbetriebe (BBB), has not actually changed its rules, which insist that a bathing costume covers the genitals