Sinning, as Jesus and the church say, is good. Turn or burn Christians.

[BrianSoddingBoru4]

Then the compulsion to mate, in your telling - right or wrong- , is sin.

Mating was God's first commandment to man in Genesis 1:28 - Be fruitful and increase in number.

The problem is our sin - we are unable to follow this directive according to his guidelines.

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If Jesus/Yahweh did not want us to sin, he would not have put Satan in Eden to insure we did and Christians could not call Adam's sin a happy fault and necessary to god's plan.
Simple logic and reason.

There is nothing good about sin.  It is not a happy fault.

“Be a sinner and sin strongly, but more strongly have faith and rejoice in Christ.” Martin Luther

I don't think the first half of that sentence is an encouragement to sin as much of an indictment.  I have to admit his wording is rather wonky - maybe it sounded better hundreds of years ago!

As in most things, context is important. Here is the relevant passage from the letter that everyone snips that quote out of:

If you are a preacher of mercy, do not preach an imaginary but the true mercy. If the mercy is true, you must therefore bear the true, not an imaginary sin. God does not save those who are only imaginary sinners. Be a sinner, and let your sins be strong [or sin boldly], but let your trust in Christ be stronger, and rejoice in Christ who is the victor over sin, death, and the world. We will commit sins while we are here, for this life is not a place where justice resides. We, however, says Peter (2. Peter 3:13) are looking forward to a new heaven and a new earth where justice will reign. It suffices that through God’s glory we have recognized the Lamb who takes away the sin of the world. No sin can separate us from Him, even if we were to kill or commit adultery thousands of times each day. Do you think such an exalted Lamb paid merely a small price with a meager sacrifice for our sins? Pray hard for you are quite a sinner.

Luther was plainly encouraging people to sin to make the self-sacrifice of Jesus more meaningful. He wanted people to sin so they would pray very, very hard to be forgiven. In his view, if people don’t sin, God cannot exercise either justice or mercy. What use is a forgiving God if there is nothing for him to forgive?

I know it sounds crazy, but there’s a very good reason for that: Martin Luther was insane.

Boru