Where spontaneous desire appears in anticipation of pleasure, responsive desire emerges in response to pleasure. And it’s normal. People with responsive desire don’t have “low” desire, they don’t suffer from any ailment, they don’t even long to initiate but feel like they’re not allowed to. Their bodies just need some more compelling reason than, “Sex is generally fun,” or “That’s an attractive person right there,” to crave sex. They can be sexually satisfied and in healthy relationships, and yet never crave sex out of the blue.