The sizes of the Breast and Penis are just ridiculous, and not in a good way with a 60 inch penis It would be taller than Ginny is, and wider at 40 inches than her entire body, I'm a big guy and I have a 40 inch waist. Ginny at 14 has Double J cups? She would have to be walking into Hogwarts with Double D's at 11.
Author's response
They Are Using Magic And Becoming Giants.