Older children play hide-and-seek, secure in the knowledge that someone will eventually come looking. The thrill of hiding is followed by the relief of being found. Erotic intimacy is an adult version of hide-and-seek. As when we were children, the stronger the connection the braver we are about stretching it. We know our beloved will be waiting for our return, will not punish our selfish pursuits, and in fact may even applaud them.