The Vatican has condemned a leading American nun for writing a book in which she praises female masturbation and approves divorce and gay sex and marriage, warning that the book must not be used by catholic educators.

The Vatican's criticism of Sister Margaret Farley, a professor emeritus of Christian ethics at Yale University, comes amid escalating tension with America's nuns, after the Holy See accused them of preaching "radical feminist" ideas.

In a statement approved by pope Benedict and issued on Monday, the Vatican's doctrinal office claims Farley's book, Just Love, a Framework for Christian Sexual Ethics, "ignores the constant teaching of the Magisterium or, where it is occasionally mentioned, treats it as one opinion among others".

The statement singles out Farley's claim that many women "have found great good in self-pleasuring – perhaps especially in the discovery of their own possibilities for pleasure – something many had not experienced or even known about in their ordinary sexual relations with husbands or lovers."

Masturbation, she concludes, "actually serves relationships rather than hindering them". That view, the Vatican stated, contradicted the Catholic belief that masturbation is a "gravely disordered action".

Farley's approval of gay sex ignored "Sacred Scripture, which presents homosexual acts as acts of grave depravity", while her backing for gay unions was tantamount to "approval of deviant behaviour," the Vatican said. Her openness to divorce and remarriage was deemed as "contravening God's law".

Full Story: Vatican denounces nun's book on sexual ethics

Source:  The Guardian