On SBS television in Australia, there was a two-part sex in Australia documentary which was quite good. It started off at Federation in 1901, and the Victorian attitudes to courtship and sex, and over the next two hours it included the massive social change that I was part of in the 1970s, and continued onwards. What surprised me was the approach of the current twenty-somethings to sex. Young women went out at night looking for a guy to have casual sex with. They were quite open about choosing a guy who caught their eye, and having sex with this guy, and then doing the same thing next week. The excitement of the experimentation of casual sex. What intrigued me was the sleaze tree, a large sheet of butchers paper in a university faculty. Every male name on one side, every female name on the other, and couples drew lines between the names when they had sex together! Now this was something, in particular young women having their sex lives posted in the communal rest area. Some women deciding their contribution to the sleaze tree looked a bit pathetic and they ought to score a few more guys before the end of the year! First up, I thought this is very different to my younger days in what I thought was the sleazy seventies. Second, compared to this mostly American forum with lots of angst about love and relationships, the current Australian approach to sex is very different. Third, this kind of thing is extremely close to the anthropological studies I did on sex when I was in university. That is there is lots of knowledge of sex and there is open experimentation with casual sex, followed by longer-term relationships once casual sex has worked its way out of their systems. In short, this seems to be the way humans are wired, if such behaviour is socially acceptable. And in Australia today, it is clear that this sort of behaviour is quite acceptable. One advantage we have over the US is our sexual openness has encouraged safe sex. Australia has lower rates of STD infections than the US, and lower rates of teen pregnancies as well. So what do others thing of the predatory girls looking for sexual excitement, or looking to score big on the sleaze tree? Can you get your heads around these concepts?