Let's just say that her in the wedding dress is a glimpse of Moka's 'dere dere' side.
She just might have such a 'weak desire' as to get married.
oh its buried deep in her, but it's there.
What would be interesting is Kokoa's reaction to seeing 'Onee-sama~' in this dress...
EDIT: Oh yeah, Magin...did you finish up re-editing Chap. 2 yet?