So I just had a little discussion with the FYO about the Biomom/realname thing. I just wanted to let her know that I don't really care what she calls me and that I'll love her no matter what.
Then I suggested some version of "Mom" for both of us (upon the suggestion of a bunch of people).
The FYO, in her characteristically mature humor said:
What if I call you [BioMom's realname] and I call Mom [blog author's real name]?