Boobs of Steel/Analysis: Difference between revisions

* The simplest explanation is that the woman is simply bigger than the other female characters, or simply older and thus more fully grown and developed, or both at once. In any case, her greater general size leads to both larger breasts as well as greater leverage and muscle mass (not that you'll often see much physical evidence of the latter—compare the biceps on the ladies in the trope image, for instance). If all of the female characters are physically active and she is the oldest, it can also be assumed she's been actively building strength and learning how to use it longer than her juniors have.

* Visually, it's a fairly simple design point: the artist wants to indicate and reinforce the notion of physical strength. A large-breasted female tends to look larger overall, and more solidly built. The other route for showing obvious physical strength would be giving the woman a massive bodybuilder physique. As the former is more commonly appealing, and the latter is more commonly intimidating, you can see the obvious choice.