Given the fact that Kirito and Asuna engage in their "marital activities" in the game, I'm very concerned about how the game knows what their... "areas" look like

What the hell I actually know the answer to this one

If I remember correctly, in Chapter 16.5 it says that everyone actually gets the same standard, game produced junk. The NerveGear scan doesn’t catch onto your private parts, so the system basically gets everyone the same hairless, perfect junk or something like that. There you go. Use your new, oddly specific virtual junk knowledge wisely.

- Mod Fil