Sex. For some it's a taboo topic, but not for God. He invented it, remember? There are plain descriptions of sexual situations in several passages in the Bible, and the Song of Solomon, though not about sex, per se, is rich with allusions to the joy and beauty of sex in a pure, married relationship. This subject needs frank discussion in today's oversexed world.
Oversexed? If the very idea seems foreign to you, it's your first clue you've been desensitized and your mind's been deeply affected by the world's unhealthy sexuality. If you eat too much chocolate cake it'll make you sick. It's the same with sex. If you eat chocolate cake with poison in it, it doesn't matter how good it tastes, it'll harm or kill you. Same with sex. There's nothing inherently wrong with sex. God did create us as sexual creatures. Some among us have less desire for it than others, and that's fine. There's nothing wrong with having a strong desire for it. However, as with all pursuits of pleasures in this world, God has given us boundaries that we must respect if we would be blessed. God never gave a command that wasn't for our good (1John 5:3). He knows us intimately (John 2:24-25). If he says "don't," it's to protect you and others from something harmful. Do you trust his word? Break God's laws to your own hurt--perhaps even eternal hurt (1Corinthians 6:9-20). I'll get back to this shortly, but first, listen to what the Bible says about sex in marriage.
What does the Bible say about it? Well, consider these PG rated passages: "Let your fountain be blessed, and rejoice in the wife of your youth, a lovely deer, a graceful doe. Let her breasts fill you at all times with delight; be intoxicated always in her love. Why should you be intoxicated, my son, with a forbidden woman and embrace the bosom of an adulteress?" (Proverbs 5:18-20). "Let him kiss me with the kisses of his mouth! For your love is better than wine... The king has brought me into his chambers." "Behold, you are beautiful, my love, behold, you are beautiful! Your lips are like a scarlet thread, and your mouth is lovely... Your two breasts are like two fawns, twins of a gazelle, that graze among the lilies... Until the day breathes and the shadows flee, I will go away to the mountain of myrrh and the hill of frankincense. You are altogether beautiful, my love; there is no flaw in you. Come with me from Lebanon, my bride; come with me from Lebanon. Your lips drip nectar, my bride; honey and milk are under your tongue; the fragrance of your garments is like the fragrance of Lebanon. Let my beloved come to his garden, and eat its choicest fruits." "How beautiful are your feet in sandals... Your rounded thighs are like jewels, the work of a master hand. Your navel is a rounded bowl that never lacks mixed wine. Your belly is a heap of wheat, encircled with lilies. Your two breasts are like two fawns, twins of a gazelle... How beautiful and pleasant you are, O loved one, with all your delights! Your stature is like a palm tree, and your breasts are like its clusters. I say I will climb the palm tree and lay hold of its fruit. Oh may your breasts be like clusters of the vine, and the scent of your breath like apples, and your mouth like the best wine. It goes down smoothly for my beloved, gliding over lips and teeth. I am my beloved's, and his desire is for me." "Make haste, my beloved, and be like... a young stag on the mountains of spices." (Selections from Song of Solomon 1, 4, 7, and 8).
Hrm, it seems like sex within a committed marriage relationship can be pretty romantic and satisfying spiritually, emotionally, and physically. That's the precise point! This worlds cheapened, animal view of sex cannot satisfy the desire for sex in all three of those ways. It can't even satisfy you physically for long. It's just like chocolate cake. Eventually you'll get sick of it. Or like poisoned cake. It just might kill you--and I'm not really talking about physical death.
All sex outside of a legitimate marriage between one man and one woman is sinful. I could list a long roll of passages that say so, but it's enough to say, God showed his plan by creating one man and one woman in the beginning. The inspired words are, "Then the man said, 'This at last is bone of my bones and flesh of my flesh; she shall be called Woman, because she was taken out of Man.' Therefore a man shall leave his father and his mother and hold fast to his wife, and they shall become one flesh. And the man and his wife were both naked and were not ashamed" (Genesis 2:23-25). Jesus affirms this in Matthew 19. Sex outside marriage will hurt you or someone else in this life. If you do not turn away from it and follow the Lord's way, it will cost you your soul. It's very clear: "Let marriage be held in honor among all, and let the marriage bed be undefiled, for God will judge the sexually immoral and adulterous" (Hebrews 13:4). I hope you can hear and accept this, and may God bless your holy, happy sex life within the security of a committed, Christian marriage.