Is steamy, kinky sex the key to romantic sizzle? When they were in their forties, Andrew Spires took Sarah Baden to astral heights of ecstasy as they mutually explored the paradoxical relationship between pleasure and pain. In time, Sarah shed her reticence and emerged as a sexually creative equal-to Andrew's surprise, delight, and chagrin. Their dominant/submissive role reversals and intense physical and psychological experimentation deepened intimacy,...