In the Bible there is much indirect reference to sex, much of it having to do with procreation in marriage.
“Adam made love to his wife Eve, and she became pregnant and gave birth to Cain. She said, ‘With the help of the Lord I have brought forth a man.’” (Genesis 4:1)
“He slept with Hagar, and she conceived. When she knew she was pregnant, she began to despise her mistress.” (Genesis 16:4)
“That night they got their father to drink wine, and the older daughter went in and slept with him. He was not aware of it when she lay down or when she got up.” (Genesis 19:33)
“Sarah became pregnant and bore a son to Abraham in his old age, at the very time God had promised him.” (Genesis 21:2)
Women have two strong instincts:
1. To be a wife
2. To be a mother
Sometimes the mother instinct is so strong that the woman will marry just to have children. The mother instinct may be stronger than the wife instinct.
With men, they also have two strong instincts:
1. To be a husband