Prostitution in Monaco is legal, but organized prostitution (brothels, prostitution rings and other forms of pimping) is prohibited. Solicitation is also illegal. Forcing another person into prostitution is illegal, with penalties from six months to three years of imprisonment, plus a fine. A husband who forces his wife to engage in prostitution can be sentenced to one to five years of imprisonment plus a fine.
References
Prostitution in Monaco Wikipedia(Text) CC BY-SA