This goes back to the sometimes private admiration and not being able to show it in a public setting for fear of what society will have to say about. They feel that female bodybuilders are normal women too who just happen to be in a sport which requires muscularity. Whats interesting is, whether grossed out or in awe, the need to stare is the same.
The Funniest Howard Stern Wack Packers #36. The solidarity between women is breaking down, when really, we should be supporting one another no matter the shape, size or weight. Related video: Playboy model apologises for body shaming a woman in the gym.