Here's the latest from our Googling God section on BustedHalo. This is one of the most common questions we get in our Question Box and people are often astounded at the actual answers.
While you won’t read any definitive lines in the Catholic Catechism when it comes to oral sex, the church does draw some directives from its traditional teaching on sexuality to provide some guidance. Many people are surprised to hear that even within marriage, the church makes a distinction between oral “sex” and oral stimulation. If we define oral sex as orally stimulating the male partner to orgasm, then the church would prohibit that even for married couples.
And you said the church hated women...apparently not...
The Big O: If a man was able to orgasm during sexual intercourse but his wife did not, he may bring his wife to orgasm after intercourse in whatever way he chooses (manual or oral stimulation). West writes, “Since it’s the male orgasm that’s inherently linked with the possibility of new life, the husband must never intentionally ejaculate outside of his wife’s vagina. Since the female orgasm, however, isn’t necessarily linked to the possibility of conception, so long as it takes place within the overall context of an act of intercourse, it need not, morally speaking, be during actual penetration.”
Now go and read the whole thing over here.