After 8 years, we visited my wife's sister and school mates. The 4th day, my wife told me to take care of her sister over night. She took me to a dance hall. Apparently she wore a short low cut dress showing her butt in the mirrors. Men were staring and wanted to pay for a dance. She said I paid 5,000 yuan for the whole evening! The night at her apartment was what she and my wife planned.