The marital act is a moral obligation, a moral duty, a moral right (see the natural contract and the natural institution), but also an act of love, a prayer, a liturgy, a language, a gift, a present, a donation, an act of natural goodness, an act of charity.
The morality of intentionality of union of bodies, in the catholic marriage, is very important. The intentionality is morally permissible and ordered by nature, when it is for:
expressing the conjugal love;
and / or
improving the conjugal love;
and / or
improving the bonding of love;
and / or
avoiding the bad effect of concupiscence;
and / or
being an actor of the human procreation (making a baby or trying to make a baby);
and / or
having conjugal sexual fun;
and / or
giving marital sexual pleasure to the other and for receiving marital sexual pleasure from the other.
and / or
praying God.
(Alternative intentions or cumulative intentions). The cumulative intentions are also moral, of course. Each one of these intentions is a proof of conjugal love. Each one of these intention is relevant and / or enough.
The marital act is coming from conjugal love; The marital act has to be done by conjugal love; The marital act has to be done in conjugal love; The marital act belongs to conjugal love; The marital act has to be done for conjugal love; The marital act has to be done for the other spouse (each spouse has to be active for the other during the marital act).
In the marriage, the woman is or should be the " New Eve of her Man " and the " Saint Mary-Magdalene of her husband " about the conjugal sex. She has to try to be the guide of her Husband, and the Person who reveals in him, his part of feminity, and helps his masculinity. The conjugal female has to understand the normal sexuality of her male. Wife is the teacher of the sexuality of her husband, she is also the professor of the sexuality of her husband, and then she is the doctress and love’s master of the sexuality of her husband.
In the marriage, the man is or should be to be the " New Adam of his wife" and the " Holy Beloved of his wife" about the conjugal sex. He has to try to be the guide of his Wife, and the Person who reveals in her, her part of masculinity, and helps her feminity. Husband is the teacher of the sexuality of his wife, he is also the professor of the sexuality of his wife, and then he is the doctor and love’s master of the sexuality of his wife.
Thus, the wife has to give her body to her husband and the husband has to receive the body of his wife; the husband has to give his body to his wife and the wife has to receive the body of her husband (the mutual donation of bodies by the complete union of bodies, in the human fashion with the sexual cooperation): the holy conjugal erotism belongs to the marriage.
In the marriage, the woman is or should be the " New Eve of her Man " and the " Saint Mary-Magdalene of her husband " about the conjugal sex. She has to try to be the guide of her Husband, and the** Person who reveals in him, his part of feminity, and helps his masculinity. **The conjugal female has to understand the normal sexuality of her male. Wife is the teacher of the sexuality of her husband, she is also the professor of the sexuality of her husband, and then she is the doctress and love’s master of the sexuality of her husband.
In the marriage, the man is or should be to be the " New Adam of his wife" and the " Holy Beloved of his wife" about the conjugal sex. He has to try to be the guide of his Wife, and the Person who reveals in her,** her part of masculinity, and helps her feminity**. Husband is the teacher of the sexuality of his wife, he is also the professor of the sexuality of his wife, and then he is the doctor and love’s master of the sexuality of his wife.
Each one has to let the other to be active on its sexual body, that means also a part of passivity for letting the other to be active. Each spouse is a passive agent and an active agent.