If you have dreamed of making love with a person who is engaged in prostitution: Even if some of your payments in joint money matters reduce your mood, you will manage to overcome it. To have sex with a person who is prostitute in a dream indicates that the dreamer will gain from fraudulent and bad ways, that the person who does not earn from halal means will not see the benefit of his money, and that he will make a mistake.
This dream is a haram property that will come into the hands of a person. The person who sees the dream earns his living through illegitimate ways and earns money that is not halal for him.