Most curious. How did this happen?

(Context: Rainbow Dash has officially decreed the name of her mev pack to be Team Awesome and smacked her hoof on the table in Twilight's throne room when doing so. This, unintentionally on Rainbow's part, triggers an automatic summon of both Celestia and Luna into the throne room to meet her. Luna is the first of the two princesses to speak.

The text goes like this:

Suddenly, a flash of light spread through the room from right before the set of doors closest to where Rainbow sat. When it cleared,  Princess Celestia and Princess Luna stood and surveyed their surroundings.

"Most curious," Luna uttered. "How did this happen?") 

Per chance, could you tell us how or why we have been summoned?

(Context: Celestia realizes Rainbow Dash summoned the pair once she sees her in the room. Luna follows Celestia's line of sight and reaches the same realization. They all formally exchange titles and after that, Luna asks this line without knowing Rainbow Dash summoned them unintentionally. There is no accusation in her tone. The question is honest and sincere.)

With six fledglings to feed you most nights, we do not expect that to be a problem.

(Context: Because Rainbow Dash has gone through the formalities of explaining herself being a master mev and having a pack, she has openly noted to the princesses that she must eat magic once a week or she'll go berserk if she doesn't. Master mevs can exchange magic with fledglings in a special way to feed both types of mevs. Celestia and Luna are both already informed on these facts, so Luna is simply noting in turn that the mevs do appear to have a handle on the situation.)