I believe that the doctrine of the ever-virgininity is correct but if it’s taught as if Mary and Joseph are to be perfect role model of husband and wife then you’re saying married couples shouldn’t have sex and also that sex in marriage is bad. I think that Mary and Joseph encapsulate aspects of celibacy and marriage. Don’t blame if everybody thinks NFP is correct.
Here are some aspects of the Catechism to consider. Also a marriage can be annulled if there was not free consent of either partner or if the marriage was not consummated but I can’t find it in this catechism. Annulment means a true and valid marriage did not take place. I think Mary and Joseph’s marriage is in a funny position if it was evaluated according to our understanding of the sacrament of matrimony.
- The openness to fertility
1652 "By its very nature the institution of marriage and married love is ordered to the procreation and education of the offspring and it is in them that it finds its crowning glory."162
Children are the supreme gift of marriage and contribute greatly to the good of the parents themselves. God himself said: “It is not good that man should be alone,” and “from the beginning [he] made them male and female”; wishing to associate them in a special way in his own creative work, God blessed man and woman with the words: “Be fruitful and multiply.” Hence, true married love and the whole structure of family life which results from it, without diminishment of the other ends of marriage, are directed to disposing the spouses to cooperate valiantly with the love of the Creator and Savior, who through them will increase and enrich his family from day to day.163
scborromeo.org/ccc/p2s2c3a7.htm#V
III. THE LOVE OF HUSBAND AND WIFE
2360 Sexuality is ordered to the conjugal love of man and woman. In marriage the physical intimacy of the spouses becomes a sign and pledge of spiritual communion. Marriage bonds between baptized persons are sanctified by the sacrament.
2361 "Sexuality, by means of which man and woman give themselves to one another through the acts which are proper and exclusive to spouses, is not something simply biological, but concerns the innermost being of the human person as such. It is realized in a truly human way only if it is an integral part of the love by which a man and woman commit themselves totally to one another until death."143
Tobias got out of bed and said to Sarah, “Sister, get up, and let us pray and implore our Lord that he grant us mercy and safety.” So she got up, and they began to pray and implore that they might be kept safe. Tobias began by saying, “Blessed are you, O God of our fathers. . . . You made Adam, and for him you made his wife Eve as a helper and support. From the two of them the race of mankind has sprung. You said, ‘It is not good that the man should be alone; let us make a helper for him like himself.’ I now am taking this kinswoman of mine, not because of lust, but with sincerity. Grant that she and I may find mercy and that we may grow old together.” And they both said, “Amen, Amen.” Then they went to sleep for the night.144
2362 "The acts in marriage by which the intimate and chaste union of the spouses takes place are noble and honorable; the truly human performance of these acts fosters the self-giving they signify and enriches the spouses in joy and gratitude."145 Sexuality is a source of joy and pleasure:
The Creator himself . . . established that in the [generative] function, spouses should experience pleasure and enjoyment of body and spirit. Therefore, the spouses do nothing evil in seeking this pleasure and enjoyment. They accept what the Creator has intended for them. At the same time, spouses should know how to keep themselves within the limits of just moderation.146
2363 The spouses’ union achieves the twofold end of marriage: the good of the spouses themselves and the transmission of life. These two meanings or values of marriage cannot be separated without altering the couple’s spiritual life and compromising the goods of marriage and the future of the family.
The conjugal love of man and woman thus stands under the twofold obligation of fidelity and fecundity.
scborromeo.org/ccc/p3s2c2a6.htm#III
Also I had to promise according to the Catholic rite in England to be open to having children in order to get married in the Catholic Church. If I don’t have sex at all then I’m not open to having children.