This is in response to yours and to the OP:
Unitive and procreative. Procreative and unitive. That’s what the Church teaches on sex within the sacrament of marriage with no ambiguity.
Procreation is the primary end of the sexual act the way nutrition is the primary end of eating. Both are life-giving. That there is associated pleasure to the point of satiation with said basic human drives is a testament to the grand design and order our Creator made. If pleasure is pursued to excess, taking primary or sole focus, that would make it lust and would therefore be a sin.
The Catholic Church in her wisdom has
developed or
refined the teaching, with beginnings during the time of St. Augustine (354-430 AD). He was the first to actually teach within the Church on sexual morality, noting that the procreation of children was the primary purpose of marriage and sex.
Thomas Aquinas taught as a scholastic that sexual pleasure was good, but must not be separated from reason. Again, the primary purpose of marriage and sex was procreation. During the Renaissance, St. Alphonsus Liguori (1696 -1787) once again affirmed procreation as the primary end of marriage and sexuality.
In continuing Christian teaching and in response to the Anglican Lambeth Conference’s implied approval of contraception, Pope Pius XI wrote an encyclical in December 1930, entitled, “Casti Connubi.” In it, Pope Pius described the holiness and origins of marriage as being from the Creator and wrote of the evil of contraception.
Again in 1951, Pope Pius XII condemned the use of contraceptives in his “Address to Midwives.” A slight “stall” of sorts occurred in 1965 during the Second Vatican Council when Pope Paul VI determined that no teachings on sexuality be formed until he received results from a commission on birth control previously established by Pope John XXIII in 1963.
Gaudium et Spes, Pope Paul VI’s 1965 Pastoral Constitution on the Church in the Modern World, addresses problems related to artificial contraception.
Humanae Vitae was released by Pope Paul VI in 1968 to reaffirm the Church’s traditional teaching of equal status and inseparability of both the procreative and unitive aspects of marital sex. He went on to emphasize the teaching authority of the Church, based on natural law and illuminated by divine Revelation.
In his writing on the consequences of artificial contraception, Pope Paul VI offered warnings. These warnings, in light of our present social circumstances, seem prophetic. He warns us that the consequences include a general lowering of moral standards; a reduction of women to the status of mere instruments for the satisfaction of one’s own desires, and a general lowering of standards of the affection and partnership of marriage. Further, he warned that public authorities may impose contraception on its populace without regard to moral law.
Familiaris Consortio, by Pope John Paul II, in 1981 stressed that contraception is contradictory to total and reciprocal self-giving love. He says that those who use it are not really capable of giving themselves fully to one another.
Pope John Paul II’s Veritatis Spendor in 1993 stresses moral absolutes and that even when attempting to choose artificial contraception as a “lesser evil,” it remains intrinsically evil and sinful.
The 1994 Catechism of the Catholic Church addresses the regulation of procreation and warns that spouses must act “in conformity with the objective criteria of morality,” and continuing on to address periodic continence. Today, we learn proper methods of this in the Natural Family Planning program.
In the Catechism, it should be of note that there is a section devoted to the Love of Husband and Wife. It should put to bed any question that the Church disregards the pleasure and enjoyment of the body. She recognizes the physical union of husband and wife in body and spirit. True love making and life giving.
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.”
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.”
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
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.
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