Brothels are places which people may visit to engage in sexual activity with a prostitute and can be found in Oberhausen. Brothels are also called cathouse, establishment or disorderly house but due to legal or cultural reasons some establishments may describe themselves as nightclub, bar, massage parlor or strip club. Brothels operate using a variety of business models and vary in size and range of services offered, so also in {city}. Some prostitutes may have a contract with the brothel and some might work independently, but in most cases the prostitute will pay a fee for the use of brothel facilities and take care of all financial transactions between her and the clients.