Oh I’ve studied it. Sex is intended to be between a man and his wife. It is not intended to be for procreation only.
Sex is for procreation. That is its purpose in human beings. This does not mean that sex within a marriage that is open to procreation is not enjoyable, but when not open to new life sex ( whether within a marriage or not )is a perversion. If conception does not naturally occur that does not demean the act