You can change your mind, but be obvious and not vague about it. You change you mind but you let the other party have sex with you. Are men mind readers if you keep it to yourself you are not interested and do nothing to stop sex?
Have you ever actually spoken to a woman? What bizarre scenario are you imagining here?
I edited my post above to make more sense, you obviously didn't watch the video I linked to get a better understanding. I only say this as your posting has me think this.
Are you taking the position that if its a women, actions have no consequences? Only men can suffer the consequences of their actions?
No, I'm taking the position that if a man rapes a women then it's the man's fault entirely.