I hope you find this helpful , i looked it up on the internet from Christian Answers.
No 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. In their minds, there is only only one biblical form of sexual expression in marriage, sexual intercourse. They attempt to defend their viewpoint on biblical grounds -- trying to make it into a holiness issue. However, no where do we see Scripture putting such limits on the sexual relationship of a godly husband and wife, even Levitical priests (who were forbidden to do many things).
Most knowledgeable and spiritually mature Christians realize that God is the author of sex and love, and every part and sensation of the human body, and that He intended the relationship between husband and wife to be loving, sensuous, joyful, creative and full of pleasure.
Read the somewhat cryptic Song of Solomon from a lover's point of view. Using delicate, romantic language and metaphors, it describes a beautiful, affectionate, romantic, sensuous, joyful and passionate love between husband and wife. It seems to be speaking of the lovers tasting, eating and drinking of each other's bodies (Song of Songs 2:3; 4:16; 8:2). One cannot be sure what this means exactly, but certainly we see no evidence here or elsewhere that God is concerned with what part of their bodies might be touching, including where they kissed their mate.God is concerned about your love for each other. He wants all Christians, including husbands and wives, to be kind to each other, patient, respectful and unselfish. Ultimate love is pure in motive and action. Follow that goal, and you are not likely to go wrong
(About the Song of Solomon, see the WebBible Encyclopedia Solomon, Song of (WebBible Encyclopedia) - ChristianAnswers.Net)
God Bless and Much Love xoxoxoxoxox