You can't get married in Australia without parental consent if you are under the age of 18. I believe most of the other girls (and some boys) that I know would sing something a lot more explicit than the topic of this discussion. As you and other posters indicated, Ewan, you sang songs with sexual meanings at the age of 17. These types of songs are very common among people my age and around it. There are songs which are much more explicit than this.