lets get this started

I was hanging out in my dorm a few weeks ago after we finished a movie with a few of my guy friends and they were commenting on the clothes (or lack there of) that the female lead was wearing in the movie. I was shocked to see that they actually cared about things like that or even paid attention to it. I never thought about the clothes I pick out to wear in the morning affecting the people around me. I then started to do a little research and just looking around at what girls on campus wear and asking my guy friends what they thought. I want to know what you guys think about this, whether it is a problem or not. Even where we should draw the line on what kinds of clothes are inappropriate, in the Christian world or even in the secular world. Is it OK to wear strapless tops? shorts? how about pants? What kinds of precautions should we take to protect our brothers in Christ, and if you don't claim that faith your guy friends or even your brothers?