The R&R programme has had many effects on Kings Cross ... Another has been the fostering of corps of girls who literally live off the soldiers. Many of them work on a casual basis for a shop or service or a disco that wants the R&R custom. The girls chat up the guys in the street and inveigle them into spending money at their employers. From this they pick up a healthy commission. Others just move from soldier to soldier, playing the role of temporary mistress and allowing themselves to be generally provided for. 

Rennie Ellis and Wesley Stacey Kings Cross Sydney: A personal look at the Cross 1971 pg 36

Some of the white servicemen used to get around in beads and headbands, flashing peace signs and pretending they were in Haight-Ashbury. The black soldiers were a big hit with the girls and used to enliven the Cross with their flamboyant dress and the ever-present shades. In the discos they danced with great style and in the streets they’d meet with their complicated, esoteric Harlem handshakes and the broad, knowing grin of the soul brother.