Whether in the state of innocence there would have been generation by coition?

Objections

Objection 1 : It would seem that generation by coition would not have existed in the state of innocence. For, as Damascene says (De Fide Orth. ii, 11; iv, 25), the first man in the terrestrial Paradise was "like an angel." But in the future state of the resurrection, when men will be like the angels, "they shall neither marry nor be married," as is written Mt. 22:30. Therefore neither in paradise would there have been generation by coition.
Objection 2 : Further, our first parents were created at the age of perfect development. Therefore, if generation by coition had existed before sin, they would have had intercourse while still in paradise: which was not the case according to Scripture (Gn. 4:1).
Objection 3 : Further, in carnal intercourse, more than at any other time, man becomes like the beasts, on account of the vehement delight which he takes therein; whence contingency is praiseworthy, whereby man refrains from such pleasures. But man is compared to beasts by reason of sin, according to Ps. 48:13: "Man, when he was in honor, did not understand; he is compared to senseless beasts, and is become like to them." Therefore, before sin, there would have been no such intercourse of man and woman.
Objection 4 : Further, in the state of innocence there would have been no corruption. But virginal integrity is corrupted by intercourse. Therefore there would have been no such thing in the state of innocence.