It’s called Iranian Shiia legalized prostitution. KGS
Fixed Marriage site hit in Iran
Iran practices strict rules on sex and relationships. Porn sites and Facebook are blocked and you’re advised not to show too much affection in public, let alone kiss your lover in the streets of Tehran.
However, a website that promotes temporary marriage, accepted in the Shia Islam but frowned upon by many Iranians, has gained more than 22,000 members since it was set up less than five months ago. Hafezoon, with a homepage presented in a remarkably similar style and colour to Facebook, has fewer than 1,000 female members, while the rest are men. Only a very small number of them use profile pictures.