Academics at the Majlis al-Ifta al-Aala, the country's top religious council, said relaxing the rules concerning women drivers would eventually lead to "no more virgins," The Daily Telegraph reported Friday.
The scholars, working with a former professor at the conservative King Fahd University, presented their conclusions in a report to the country's legislative assembly.
The report said allowing women to drive would "provoke a surge in prostitution, pornography, homosexuality and divorce."
Saudi Arabia is the only country that bans women from driving. Women caught driving can be lashed.
In September, Shaima Jastaniya was sentenced to 10 lashes after she was caught driving in Jeddah. International outrage about the sentence prompted King Abdallah to overturn it.
Despite criticism about the law by rights organizations and other leaders, resistance to reform is strong within the conservative royal family and among clerics.
The Saudi government is considering a proposal to ban women from displaying their eyes if they are deemed too "tempting," the Telegraph reported. Women already must cover most of their bodies in public.