Before COVID, I was at the German pub at the Rocks with the missus at around Octoberfest and had to take a leak. There were 2 gay dudes in one of the cubicles getting it on right there at 8pm on a Friday night, WTF. 3 other dudes were also there, all of us just wanted to GTFO as soon as possible, lol!
Some pubs around the city also have the perfect cubicles for sex. Like Peppercorn terrace pub at the corner of Pitt St and Goulburn St. It has a unisex toilet with cubicles that cover from ceiling to floor, that's just perfectly built for sex. They're really small, though.
I've always had a fantasy of booking an "outcall" escort and try to do it with her at a public place like in a theatre or public toilet. Anybody else have this kinda thing?