Time Out: Hong Kong's Mistress Culture

"There’s an old adage, ‘why buy the cow when you can get the milk for free?’ The concept isn’t new – why force a marriage when you can have a bit on the side? – but in Hong Kong, the phrase denotes a fluid boundary, rife with vague definitions and moral grey areas. Yinai, the slang term for women who embark on these relationships (usually with a married, older man), translates roughly as ‘second milk’ in Cantonese, but of course, these women aren’t ‘free’. There’s an arrangement. "