“For [erotically intelligent couples], love is a vessel that contains both security and adventure, and commitment offers one of the great luxuries of life: time. Marriage is not the end of romance, it is the beginning. They know that they have years in which to deepen their connection, to experiment, to regress, and even to fail. They see their relationship as something alive and ongoing, not a fait accompli. It’s a story that they are writing together, one with many chapters, and neither partner knows how it will end. There’s always a place they haven’t gone yet, always something about the other still to be discovered.”