Not strictly relevant I know but somehow I can't help recalling the story of the widowed Admiral's innocent young daughter being told the night before her wedding to the Admiral's flag lieutenant, "I can't give you much premarital advice, Jane m'dear, but whatever you do, don't let young Rodney do it the other way round."
Totally mystified, she obediently accepts the advice, the marriage goes ahead, and shortly afterwards young Rodney is sent off on an extended group deployment. Eventually, he returns and Jane is so pleased to see him that she says on his first night home, "Rodders darling, as a special treat let's do it the other way round", to which he replies in shocked horror, "What? And fill the house with a whole lot of blooming kids?"
Jack