This was taken from an interview posted on a French GAM website,
http://ayaya.free.fr/GAM/ - You can read into it however you like, but for me, this is *DEFINITE* proof that Ayaya and Mikitty share something that goes beyond friendship^^
"Lastly, some messages for fans and also for your partner.
Aya :
"Great" ... greatness, wonderfulness, there are various meanings, but the two of us will show you our own meaning of "Great". Please keep up the support for GAM!*
* (Aya's actual transliterated writing was "GAM wo 4649 onegai itashimasu". The "4649" is supposed to be read as "Yo-Ro-Shi-Ku" xD).
To Tan (Mikitty),
I've been meaning to say this for a while, somehow it’s a bit embarrassing, but let's put forth both of our effort into this. In the things we want to say, things we can’t, our words, and after that love shall fully embrace. With no hesitation like ever before, please keep on watching over me.*
* (She actually wrote 4649 again here xD)
Miki :
Please watch me in enjoyment, it makes me happy when we can have a great time together.
To Aya-chan,
Thank you for all these times. I love you~"