Women dress in a certain way for various reasons; it could be to gain respect from others, to fit in with their peers or society, to get potential soul mates and attract them, to feel confident and beautiful, to go to a party, an interview, etc etc.
Most of the time, all girls will tell you that they dress a certain way simply because they love that dress, they love their shoes and feel beautiful in it, and feel confident. I really do think that this is the main reason why all girls dress the way they do; to feel beautiful and confident. For guys that label girls with short skirts and revealing clothes as either sexy or slutty; most of the time the girls are looking to just feel sexy in those clothes, and not to 'sell' themselves.
I am not saying that wearing short skirts is okay if you just want to feel beautiful and sexy, or dressing just the way you want because you want to feel beautiful and sexy is wrong; girls, we must find the right balance between the two.
Sometimes we would feel and say that "I feel beautiful in this dress, I don't care if it looks slutty for others." I will give a thumbs up for your confidence in following your heart, but a thumbs down in executing it. You might feel beautiful in that dress, but others will get the completely different, and most of the time the wrong idea.
Once again, I STRONGLY encourage everyone to follow your heart and in no means that I am saying that other people's opinion of you is more important than your own heart. Do follow your heart, but start listening to others when almost everyone is saying the same, incorrect thing; you are dressed to feel beautiful and look beautiful, but your guy friends, girl friends and maybe even younger children are telling you that is sends another message to the world.
It's just the same with everything else like attitude; be tough and strong to others so that they won't take advantage of you, but start listening when almost everyone is telling you that you are hurting others and arrogant; it means that you are executing your values the wrong way.
With that being said, everything needs it's balance. It is not easy to find that right balance in what to wear that makes you feel beautiful and look beautiful to others, but once you find it everything will be worth it. Doing this is not to in any way to please others, but to please yourself and be safe with it; you feel beautiful but you are also sending the wrong message which could endanger your life if the wrong type of guy gets the wrong message.
I am a Muslim, and I do wear the hijab or head covering. I can tell you from experience that even though I dress all covered up, I do still feel beautiful, confident and safe :) Just ask any guy on how he acts with a girl fully covered compared to a girl who has a pretty and sexy dress on. You will find that most guys automatically have a certain level of respect for a fully covered girl without even knowing who she is personally.
This also applies to girls who dresses modestly even without head covering, compared to a girl who dresses up ready to party all night. There is a difference in the level of respect between the two.
I am not implying that all girls who dress all sexy and fun are bad girls, and that girls who cover up has 100% perfection in her attitude, but what I can say is that why dress in a way that can cause harm to yourself, when you know deep down you are a much better, beautiful and intelligent person :)
Dress to please the most important factor in your life, and you know who He is :) when you have that intention, you will almost always never go wrong :)
"O Children of Adam! Indeed We have sent down to you a garment which covers your shame and provides protection and adornment. But the finest of all is the garment of piety. That is one of the signs of Allah so that they may take heed." (7:27)