I'm sorry, but this is really very upsetting. When you see a woman whose nipples are showing through her clothes, even prominently, you cannot -- I repeat, cannot -- assume that she's trying to be provocative. As I've posted elsewhere in this thread, I refuse to wear padded bras, and sometimes my nipples show through prominently. I know this because I've seen it in the mirror. The fact that my nipples show through my clothes is only deliberate in the sense that I hate padded bras and refuse to give in to this sexist society that wants to tell me that my nipples are offensive and must be hidden under layers of uncomfortable plastic foam.

What Blue_true said was a good thing. Men shouldn't care about a woman's nipples showing. It's just a body part. It's a natural phenomenon. Women should not have to hide it.