There's a bus from the Park in Sankt Petersburg, 23:00, that takes you to some undisclosed location where you can work as a prostitute, then takes you back to the Park afterwards. You've got to unlock that by being told about it.
Prostitution in Pavlovsk includes washing cars at the gas station during dry weather and daylight, if you're wearing prostitute clothes; being approached in the streets if your reputation is high enough, i.e. if you're locally famous as a slut; being solicited at home, if your local reputation is high enough; being offered 100 Rubles for a blowjob outside the Disco by some guy who approached you on the dance floor; asking a guy for money to have sex with him after he takes you from the Disco to his hotel room; the glory holes in the men's toilets in the Commercial District, with risk of THINGS happening.
There is nothing related to the park in the city and the bus in the game code.
There is a location in the code called "gas_station_gp_117" and the bus goes there from Pavlovsk (market).
This location is the same gas station from the Wlife mod where you can work as a prostitute and it is located not far from Pavlovsk.
The problem is that I did not find any trigger events that would open this ability in the game. No one offers the character a job there or talks about this place.
For everything to work as it should, you must enter the following codes:
prostitute['blocked'] = 0
prostitute['gas_station'] = 1
prostitute['payment_method'] = 1
Then you can go to the gas station, earn money there and return to Pavlovsk on the same bus.
Apparently, without codes, in the normal way in the game, there is no access to this feature, or I simply did not find it.
Of course, in order for everything to work, you must have the clothes of a prostitute and money for bus fare.
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Sorry for my English.