Small headcanons consisting of how the girls physically lean on each other.

Mira has Zoey at perfect chin resting height and subsequently will always rest her chin atop Zoey's head if given the chance. Rumi is used in the same sense but as an arm rest instead

Rumi, being a very stable person (only physically), always gets used by the other two to hold onto if they're having trouble putting on a shoe or something

Zoey just has amazingly soft skin which Rumi and Mira love nuzzling against. When given the chance they will smush their faces into any skin available