Things such as physical rupturing and pain come into existence only after the fall. Pre-fallen human procreative measures would indeed have a physical dimension, however, and not have been strictly spiritual or angelic in nature. The Holy Trinity did create human beings who commune in every way both spiritual and bodily, and "male and female He created them". Their bodies were not as ours are after the fall, so intercourse between them would naturally be different than our intercourse is. I only make such points for the purpose of clarity, because I doubt that any statement suggesting the absence of a physical dimension to male and female procreative intercourse before the fall would be Theologically incorrect: i.e. it would be sort of gnostic in it's leanings. I'm also not fully on board with a notion that Communion with God through the medium of all of the physical blessings given/created were necessarily without "pleasure", although unfallen pleasure would strictly have been without sin. I receive Holy Communion, which is the real Body and Blood of Christ in the forms of bread and wine. The bread and wine taste very good and there is pleasure in eating and drinking them. Does this mean that I sin by eating and drinking? God Himself commands us to eat and drink of it. Similarly, God commands husband and wife to be fruitful and multiply. The act of being fruitful and multiplying probably was made by God to have a pleasurable aspect to it, just like eating the fruits He blessed Adam and Eve with in paradise, but if pleasurable, did they commit sin by obeying His command? Because we are fallen, we must deny ourselves and it is hard. Adam and Eve weren't fallen until they sinned, so denying themselves was in their very nature, and so it was easy until they were tempted and fell. For them, eating could be pleasant without being gluttonous at the same time. Sexual intercourse could be especially pleasant without being lustful... etcetera... In sum, they Loved God above all so that whatever pleasure they experienced only served to deepen, broaden, and heighten their Love of God and one another. It's impossible for us to imagine such and existence.