Some loyalty cards let you rack up points, but one business in Malaysia was recently busted after offering customers something even better: free sex after nine car washes.

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According to the Malay Mail, the car wash located near Kuala Lumpur had a partnership with a massage parlour. They were tipped off when they raided the parlour and found the car wash cards on several alleged customers of prostitutes there. The extra 'offer' was part of a scheme was meant to get customers to send their cars for washing more often within a certain period.

Nine Vietnamese women, aged 18 to 28, were arrested on suspicion of prostitution. Four men suspected of running the scheme were also detained.

Pic via supermacchina.blogspot.com (NSFW)