The half-dozen cheery ladies with ugly dresses and pretty fingernails weren't purchased from a bridesmaid rancher who bred them explicitly for horniness and amiability.
You see all these people just kind of finding themselves in this environment, and what are bars and night paintings of booze and drugs and horniness...?
Whether this action bespoke horniness or something subtler -- such as love -- most of her contemporaries found it even more shocking than her extramarital cohabitation.