I'm sorry if you find my thinking that sluts of both genders exist offensive. Also, I come from a fairly conservative culture and I know that people are judged by appearances, whether that's fair or not, and that it's not a good thing to dress like a tramp or in a manner that seems to convey that you're "easy". It's a matter of how much respect you wish to command from those around you. If you don't give a damn that people may think you're promiscous, well knock yourself out. I am of the impression that Helena, having being brought up Catholic and conservative, might mind being taken for a sex object. This is one of the reasons I object to the mid-riff bearing costume. And it's not a moral choice, IMO, because I'm pretty ambivalent about morality, but I DO want to be respected and taken seriously.
However, please don't insult me by using the slippery slope argument that thinking what one wears matters leads to victim-blaming. If a woman can chooses to dress inappropriately and other people view her badly as a consequence, that will be her fault. That's a lack of judgement. But a person's opinions on her moral character should not allow anyone to lay a finger on or harrass her in any way - that's a crime punishable by law.