Bonnie

Four things are agreed in writing before Bonnie leaves the Jordaan: the address, the hour, the length and the figure. She will tell you so herself if a message reaches for a fifth, and she does it without any edge in her voice, because the arrangement was never hers to widen. Twenty-five, blonde, and a brisk writer who answers in two lines where two paragraphs were expected. Ukrainian, Russian and English are all at her disposal, and a guest who has only one of the three is no harder for her to look after.

Bonnie 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.