As long as Ayu continues to be so expressive, we will be here to document it for our giggling pleasure. (I'm going to keep posting here like it's going out of style, which it seems to. XD)
Spoiler'd to preserve space. These are all from Ayu's 3rd Appearance on Shin Domoto Kyoudai, also known as episode #318, dated 2007.12.02. Enjoy, please.