But the point here is surely "flirting with other boys", not the one who then assaulted her. Can you flirt? Sure. Can you wear what you like, safe in the knowledge that people still have no right to assault you? Yes, you should be able to.

I'm a guy, but when I go out I try and look nice. Sometimes I'll flirt with people. That's fine. If I flirt with someone and it's not reciprocated, I stop. Immediately.

You're basically just rephrasing the "she was asking for it"argument there. And it's crap. So don't.