Question: If she were to make a major wish that exhausts all her current magic and shrinks her breasts as much as possible, would she experience a new "powers of the universe flow into her body" rush? 'Cause that would be kinda hot, especially if she knows to enjoy it.
The way I got it pieced together, the magic power constantly flows into her
body, but as it is not immediately used it goes to storage in the breasts after a few hours. Kinda like how calories we don't immediately burn gets stored as fat.
I imagine it wouldn't be far-fetched to think the power flow momentarily increases after a huge power exhaust, so she'll never be below her starting level for more than a couple of seconds. Kinda like how air bursts in to fill a vacuum, or how your lungs auto-fill after a deep exhale.
But
nota bene, this does not imply that her breasts would grow back immediately.
(Yeah I'm kinda throwing out ideas here, vainly hoping that something will stick.
)