[Mrs. Don-o]

I did not say God had physical intercourse with Mary! However, conceiving a child --- like intercourse itself, an aspect of the sexual relation --- is an activity reserved to the spouses. A woman getting artificially inseminated with "donor" sperm (actually "vendor" sperm in most cases), or getting implanted with a baby via IVF made by some other couple, is violating the vowed sexual exclusivity of marriage as surely as a woman who willfully commits physical intercourse outside of marriage.

One problem of our sexually corrupted modern world is that we have so effectively split apart intercourse and procreation. We don't see that they are part of the same thing. They are both aspects of conjugal union. It's only recently (comparatively, 15 minutes ago) that they got split apart into garbled fragments via contraception and artificial reproductive technologies.

[MHGinTN]

You keep insisting that GOD had to use a gamete (sex cell) for making the body of Jesus. Clearly, something in the catholic Maridolatry requires Mary’s chromosomes to be used in making the body for Jesus. I don’t agree, but setting that strangeness aside, where did the other sex cell/gamete come from?

[daniel1212]

See above. Supernaturally making a virgin pregnant is an activity reserved to God, who Joseph and Mary owed all to, and is simply not that of adultery.

[Elsie]

...the vowed sexual exclusivity of marriage ...

Move along; Joseph and Mary. This does not apply to you.