They are mainly out on the streets at night, and to receive their services, the player must drive close to them and stop. Players must pay for their services. The sound produced when a car shakes with the player and a hooker inside in Vice City.
Honking isn't necessary in order to get a prostitute in the car. Players can only have "sex" with them on any ground that can kick up dirt or sand, and even surfaces like the tiles of swimming pools, as the game doesn't consider seclusion as a factor.
Having "sex" with a hooker is just an effect of the car bouncing up and down on an accelerating speed starting at an interval of milliseconds then decreasing down to milliseconds by 30 milliseconds each time the vehicle is shaken specifically, the car lowers down on where the hooker is sitting.
Sex has a healing effect; it can restore up to 30 health points, but even beyond the normal maximum HP by However a hooker can increase the players HP to this level instantly with no limit on the amount of HP increase, if a player uses a topless vehicle including convertibles with the top retracted. If the player is wasted or busted, the shaking will stop, and the hooker will just get out of the car normally.
Sometimes, the shaking won't stop if a car has overturned. If the car stops shaking and the hooker cannot get out of the car, when the player starts to drive, the hooker will scream like a scared female pedestrian.
