De Pijp, where restaurants fill with colleagues at eight, so she takes the evenings a couple have managed to keep for themselves.

Company dinners eat most of a working week, and what is left is usually one evening nobody from the office has claimed. She works that gap by preference rather than by chance. Romanian and English, neither of them used more than the room wants. At twenty-seven she reads the tiredness in a couple from the doorway and spends the first quarter of an hour accordingly. Body to body and oil work are what she carries most often into rented flats near the market, since both leave a room exactly as it was found. She carries what the hour needs, so nothing in a rented flat has to be hunted for or put back afterwards.

Blair decides which bookings she takes and may decline any of them; she sets the limits for what a session includes, says what they are, and may end a visit at any point, as the terms set out.