Peony: A Novel of China by Pearl S. Buck

Young Peony is sold into a rich Chinese household as a bondmaid -- an awkward role in which she is more a servant, but less a daughter. As she grows into a lovely, provocative young woman, Peony falls in love with the family's only son. However, tradition forbids them to wed. How she resolves her love for him and her devotion to her adoptive family unfolds in this profound tale, based on true events in China over a century ago.