Oral sexual activity is sex. If a woman received oral sex it is called cunnilingus and if received by a man is called fellatio. The Bible never discusses oral sex directly. The Bible has a lot to say about sex.
Our question is in the area of oral sex. Is it scripturally wrong for married couples? N o where does the Bible forbid it or discuss it. There is no biblical evidence that it is a sin against God for a husband and wife to express love for each other in this way. Even the book of Leviticus, which mentions many Old Testament sex-related prohibitions and rules for the Israelites, never mentions it. We see no reason to believe that expressing affection for one's mate in this way is forbidden or would necessarily harm one's walk with God. We are aware that some have tried to make a biblical issue out of what parts of the body a married couple can and cannot kiss.
If both partners agree, is anything taboo? What about the use of vibrators? Is oral sex okay? These are just a few questions that Christian women asked about the sexual relationship in marriage from a survey that the authors conducted. But at the heart of each of these questions were two concerns: What does God prohibit in the sexual relationship between a husband and wife, and what does God permit?
Couples often ask, "Is oral sex a sin? Hebrews says, "Marriage should be honored by all, and the marriage bed kept pure, for God will judge the adulterer and all the sexually immoral. Non-married couples are not to practice premarital sex.