Year of the Sex Dragon (1986)

Kim (Tiffany Storm) runs a massage parlour in Chinatown. She warns all the women she hire's that this is a clean place. They can massage a customer with their tits bare, but the man must keep his underwear on. Yeah, sure! It ends with the boys from the vice squad making a deal to get a percentage from the profits and "plenty of nookie" whenever they want it.