This has been refuted MANY, MANY times but some people don't really care about TRUTH and would rather pass on lies if it furthers their twisted objective. As to Luther teaching that Christ committed adultery, this is a simple reply (it doesn't seem to matter to them when we post longer explanations anyway though) the article delves into more points:
Scholars know how difficult, if not impossible, it is to link the lapidary "table notations" of Luther's friends to Luther's own views. The editors of the American Edition speculate in a footnote that the "probable context is suggested in a sermon of 1536 (WA 41, 647) in which Luther asserted that Christ was reproached by the world as a glutton, a winebibber, and even an adulterer" (LW 54:154). A more probable context is Luther's account of the atonement. One of his basic assertions is that our sins become Christ's and Christ's perfect righteousness becomes ours by faith. This idea of "the happy exchange" is found in many Luther texts. Given his central soteriological and christological concern, the theological irony in Schlagenhaufen's remembered notation becomes clearer: The "godly" Christ becomes or is made a sinner through his solidarity with sinners, even to the point of dying as a God-forsaken criminal on the cross. This is how Luther understood Paul's statement, "God made him who knew no sin to be sin for us so that in him we might become the righteousness of God" (2 Cor. 5:21
So Christ "becomes" an adulterer, though he does not actually commit adultery with Mary or anyone else. He puts mercy front and center, and rejects the legalism which demanded that the woman caught in adultery be killed and the woman at the well and Mary Magdalene be shunned. The holy one becomes the sinner by putting himself into the situation of sinners, by loving and forgiving them, and ultimately by taking their sins on himself. For this gospel reason, Luther could also remark that God made Jesus "the worst sinner of the whole world," even though he also acknowledged that the sinless, righteous Christ actually committed no sin himself. Trapped in a literalistic approach to Schlagenhaufen's contextless note, some readers have missed the metaphorical character of the remark, which Luther may have made, if he made it at all, with a twinkle in his eye. I'm confident that Luther would not be a fan of The Da Vinci Code--except perhaps with a beer in hand and that twinkle in his eye.
Here is an article from Concordia Theological monthly: Did Luther TeachThat Christ Committed Adultery? by Arthur Carl Piepkorn. He states,
More at https://beggarsallreformation.blogspot.com/search?q=christ+committed+adultery
On the other hand, there is this:
https://wolfmueller.co/did-martin-luther-claim-that-jesus-was-an-adulterer/