Spending — Mary Gordon

Monica Szabo, a middle-aged, moderately successful painter, encounters B, a wealthy commodities broker who collects her work. B volunteers to be her muse, offering her everything that male artists have always had to produce great art: time, space, money, and sex.
Passionate, provocative, and highly engaging, Spending displays Gordon's maverick feminism, her extraordinary wit, and her unique perspectives on art, money, men, sex -- and the desires of women.