Barry Mahon – Sin in the City (1966)
This is a Barry Mahon film in which three girls follow through on a vow they make for their wild night out in NYC: “We were going out on the town. We were going to get into as much trouble as we could. And most important of all, we promised each other that no matter what anyone asked us to do, we would do it.”
Note before downloading:
The source is Something Weird Video, and their watermark appears throughout the film. The quality is not great, but I imagine it’s the best available.
From Larry Cohn’s description on IMDB:
Three girls [including June Roberts] head from boarding school to NYC, arriving by bus at Port Authority and vowing to “get into trouble”, not turning down any request. These “girls gone wild” forerunners head to a Greenwich Village bar where they copycat a girl stripping to dance topless atop the bar, then head to a Village party and finally crash a posh uptown party before catching the bus home.