Am I the only one that likes Asuka calling Ayako “Mom” or is it just me..
Well I'm not into it in and of itself, but I think that is the way it works in the story, and I like the unconventional angle in that. It is a really interesting place to be. Ayako loves being Asuka's mom, and Asuka loves Ayako being her mom; it isn't separate from their romantic feelings, it's woven together into a single thing. Asuka is the only person in the world for whom Ayako is "Mom" so for both of them the word is symbolic of their specialness to each other... I really don't think either of them will be pushing for Ayako's first name to replace it, especially not in the bedroom.
I'm hoping it goes a lot further than a word, and Taiyaki is going to dig deep on the layered emotional significance as their relationship evolves. Familiar/unfamiliar, maternal/erotic; a duality in everything they do together.
The only scenario I can see for using Ayako's name is if at some point in the future they are trying to "pass" as a normal couple... even then I think Asuka would probably just call her mom and pass it off as a joke about the age difference.