"However much people might be enlightened about their own sexuality, indeed about sexuality in general, there is always in them a modicum of some subconscious aversion to the knowledge that their own parents too are beings with the same kind of sexual needs and desires, which they actually put into practice, more or less regularly. Everyone knows that they weren’t brought by the stork, and yet, where it is the actual sex act that is at issue, as far as it concerns their own parents, most people would rather that they had been."