Let him kiss me with the kisses of his mouth!
Your lips drip nectar, my bride;
honey and milk are under your tongue;
His lips are lilies,
dripping liquid myrrh. […] His mouth is most sweet,
and he is altogether desirable.
Your teeth are like a flock of ewes
that have come up from the washing;
all of them bear twins;
not one among them has lost its young.
may […] the scent of your breath [be] like apples, and your mouth like the best wine.
It goes down smoothly for my beloved,
gliding over lips and teeth.
If I found you outside, I would kiss you,
and none would despise me.
— Song of Solomon 1:2, 4:11, 5:13, 16, 6:6, 7:8-9, 8:1
Although He created the mouth primarily for communicating and eating, God doesn’t mind if it’s also co-opted for the secondary purposes of kissing or oral sex: “With great delight I sat in his shadow, and his fruit was sweet to my taste” (Song 2:3). Within a Christian marriage, secondary uses of sexual organs glorify God. Song 5:4 even mentions vaginal fisting. And the woman thoroughly enjoys it.
As long as we have mutual consent and aim to serve our lawfully-wedded spouse, not ourselves, God is fine with hot and spicy, out-of-this world erotic adventure.
So while he created breasts with the primary aim of feeding infants, we see from Scripture that he wouldn’t have a problem with couples who secondarily use them for other purposes. Regrettably, most Christians are too legalistic and moralistic, traits which they often impute to God, making them miss out greatly on his blessings. No, God is not opposed to the spiciest, most erotic sex, nor to luxury, beauty, swag and indulgence on special occasions.
“If anyone says that sex is bad or dirty in itself, we have the entire Bible to contradict him. God not only allows sex within marriage, but strongly commands it, see 1 Corinthians 7:3, 4 and 5. In the book of Proverbs, husbands are encouraged to ‘let their wives’ breasts fill them with delight and be intoxicated by their sexual love,’ see Proverbs 5:19 and compare Deuteronomy 24:5. The book Song of Solomon does much barefaced rejoicing in the delights of sexual love in marriage. […] the Bible is a very uncomfortable book for the prudish.”
– Tim Keller, The meaning of Marriage: Facing the Complexities of Commitment with the Wisdom of God, Chapter 8: “Sex and Marriage”