CIC 1607 According to faith the disorder we notice so painfully does not stem from the nature of man and woman, nor from the nature of their relations, but from sin. As a break with God, the first sin had for its first consequence the rupture of the original communion between man and woman. Their relations were distorted by mutual recriminations;1 their mutual attraction, the Creator’s own gift, changed into a relationship of domination and lust;2 and the beautiful vocation of man and woman to be fruitful, multiply, and subdue the earth was burdened by the pain of childbirth and the toil of work.3

1 Cf. Gen 3:12.
2 Cf. Gen 2:22; 3:16b.
3 Cf. Gen 1:28; 3:16-19.