The followers of Martin Luther don't deny that he said Christ committed adultery three times. They do debate, however, if he was drunk or just being sarcastic when he said it.
Christ committed adultery first of all with the woman at the well about whom St. John tells us. Was not everybody about Him saying, "Whatever has he been doing with her?" Secondly, with Mary Magdalene and thirdly with the woman taken in adultery whom he dismissed so lightly. Thus, even Christ who was so righteous must have been guilty of fornication before He died.
In the Gospel, Our Lord denied, of course, ever having committed sin. In John 8:46, Christ rhetorically asked the Jews, "Which of you can convict me of sin?"
Protestant historians don't deny that Luther ever said such a horrible thing. It's actually well documented in Protestant-approved sources. They do debate over the context of such a statement but admit they have no pat answer to explain it. The fact that Luther uttered such blasphemy, however, doesn't seem to change their opinion of the man. Catholics everywhere are joining them in praising Luther and his so-called Reformation.
Last week Cdl. Gerhard Müller, former prefect of the Congregation of the Doctrine of the Faith (CDF), called attention to the fact that many who laud Luther know very little about the wrongheaded things he taught and the negative effect his revolt had on Christendom. The cardinal noted:
There are so many voices that speak too enthusiastically of Luther, not knowing exactly his theology, his controversy and the disastrous effects of this movement that has represented the destruction of the unity of millions of Christians with the Catholic Church.
Watch the panel discuss the disastrous effects of Luther's revolt in The Download—Mourning the Reformation.