Yes, there is a mention of aborigines exchanging their wives during certain corroborees, but they do so in a strictly regulated manner. Fison and Howitt reveal that on certain occasions, particularly during large corroboree gatherings, the normal strict marital rules were temporarily set aside in a sanctioned practice of wife-lending.
Importantly, this exchange was not a free-for-all. It was strictly regulated “within class limits,” meaning it only occurred between men and women who were already in the permissible marriage categories. The text clarifies that at all other times, “men expected wives to be faithful to their husbands, unless by their consent and command.”
Note that other authors mentioned wife-lending in other situations, not necessarily during a corroboree.