Also, I would like to add that at the heart of fighting sexism is the notion that one sex does not consider the feelings of the other.
When a women gets dressed (or undressed) to look super sexy and posses for a camera, her explicit feelings is for others to view her as sexy. By refusing to indulge her feelings with a false sense of "self-righteousness", you fail to take her feelings into consideration and in fact, become sexist. I am not even kidding. This seems like "crazy talk" because we have been bombarded but idiotic feminist ideals for decades so we are conditioned to not think objectively (hah, almost pun) about these subjects. But let me explain this a different way...*
This same logic applies, equally, to a woman who is photographed, for sexual reasons, WITHOUT her consent. Viewing that content is sexist to the max. You did not consider her feelings when viewing the content: she probably doesn't want you to view them.
*This does not mean you have to view every last picture, ever, of any person who posses sexy for a camera. This just means not to balk and scorn at women who choose to do these things. This also means not to balk and scorn at other people who view these things for pleasure or admiration.
Edit - Holy shit. I sound like a feminist. An actual feminist. How dare I actually take into account a person's feelings and demand equality for both sexes. Who the hell am I? 🙂