Good question. I would give a smol "no" as she is using it here for cosmetic reasons. Girls who get a breast enlargement operations aren't necessarily "perverts" for doing so, but using a magical power this way surely is a form of misuse or abuse of it!
instances where she has given other characters ridiculously huge breasts haven't been pooled as Perversion of Power
In this case she also causes a penis enlargement [assuming], which people agree has more perverse qualities than other other and pooled it accordingly.
