妾 - concubine

Westerner's mistress

concubine; mistress

foreigner's mistress

(the most thrilling relationships for a man are) another man's wife, a maidservant, a mistress, a prostitute, and finally his own wife

illegitimate (e.g. born to a mistress)

mistress; kept woman; concubine

serving as a concubine

male paramour

beloved concubine; favorite mistress

I; me

one's wife and mistress(es)

illegitimate (e.g. born to a mistress)