Every person has their mind set on what's attractive or not for themselves, sometimes you change it to please others, others you don't. My boyfriend says all the time that most women he knows dresses for women more than for men, I guess he's right. But it is not simply trying to look pretty for other girls, but I am a girl as well and I have a certain taste that may work with other females because we are, in fact, women.
I like being feminine and I don't think that being feminine has a formula. I know girls who can wear anything, goes miles away from make up and they are feminine, what they do works for them. You have to work with something that works for you, to please you and to please who you want to please.
When you dress up, wear a padded bra for yourself, you are pleasing your notion of what beauty is. I don't think that people go on the streets looking at men crotches, observing if it's big and saying "omg that makes his body beautiful", haha. It is not the same, but you can look at a woman without any sexual intention and think that her breasts makes her body looks more graceful, prettier. I guess we have a intimate relationship with our breasts, they are not just hiding in our pants, even when they are tiny they are showing and we want them to look good.