As far as I know only Kaho talked about looking like a halfie and always denied it.
well, Naomin is inquired quite frequently about it, cuz of her big eyes and darker skin tone.
I`m not a big Aipon follower (I usually only look for Nachu and MioMio related stuff) so I was surprised... not exactly because of the fact, cuz we have a ton of halfies in the idol world and Aipon does have some traces, imo.
but the point that just this past week it appeared... I mean... she talked about her mother in the one-man done last may (if I remember correctly)... and let me apologize to qwiksXnd cuz I don`t remember her mother`s name
I tried searching for it but no results... I do remember the people going "ohhhhhh" and Annya joking that it looked like a mythological entity name. it had a spanish origin, something like Milena, Selena...
and Aipon already showed some filipino stuff in ther blog sometime ago too
http://ameblo.jp/negishiai/day-20090316.html(she talks about a Filipino perfume that not only her, but her mother and father like and that it was sent by her grandmother -so she lives in Philippines, I guess-)