Here's how it happens:
* Edward is stranded in Beverly Hills: He's lost and needs directions after his limousine breaks down.
* Vivian is working the streets: She's a Hollywood prostitute and sees Edward struggling.
* Edward mistakes Vivian for a high-class escort: Assuming she's an expensive call girl, he offers her a large sum of money to show him around the city and spend the night with him.
* Vivian accepts: She takes the money and, after a brief exchange, agrees to his request.
Their initial encounter is marked by misunderstandings and a clear power dynamic. Edward is initially arrogant and dismissive, while Vivian is cunning and opportunistic.