From this answer, I found
The celebrated Pandu, tempted by the desire of having more children wished to speak again unto his wedded wife (for invoking some other god). But Kunti addressed him, saying, 'The wise do not sanction a fourth delivery even in a season of distress. The woman having intercourse with four different men is called a Swairini (heanton), while she having intercourse with five becometh a harlot. Therefore, O learned one, as thou art well-acquainted with the scripture on this subject, ...
Actually this is like a definition of a harlot or prostitute. I am interested to know which scripture (Possibly Smritis) other than this one, declares so - that a woman having intercourse with 5 different men is prostitute?