Therefore God also gave them up to uncleanness through the lusts of their own hearts, to dishonor their own bodies between themselves:
All Commentaries on Romans 1:24 Go To Romans 1
Augustine of Hippo
When the evil will receives power to accomplish its purpose, this comes from the judgment of God, in whom there is no unrighteousness. His punishment is carried out in this way as well as in other ways. It is not less just merely because it is hidden. The wicked man only knows that he is being punished when some manifest penalty makes him feel, against his will, the evil of the sin which he committed willingly.