Wearing revealing clothing is not ‘asking for it’, and doesn’t justify rape. However, if you’re going to wear something that shows off a lot of your body, you’re giving off the impression you’re confident about your body, and aren’t afraid of people looking at it, which is going to make you appear more approachable by guys in the club or whatever - a lot of the time with good, innocent intentions. The attention is to be expected if you’re showing yourself off. This still doesn’t excuse rape in any way, but I think the point a lot of people miss in the clothing not asking for it debate is that it doesn’t invite rape itself, but it does tend to invite more attention, particularly from the opposite sex.
The same goes for when girls wear tops that show or even enhance their cleavage. There’s nothing wrong with it of course, wear what you like, but if you have something on that enhances your breasts you can’t then take offence when people’s eyes are drawn there. This is also true for short dresses/skirts/shorts than show off a lot of your legs - people’s eyes are inevitably going to be drawn there. This doesn’t mean they suddenly have the urge to rape you.
A few people have been getting up in arms against the suggestion that girls keep themselves safe and at less risk, on the basis that they’re never to blame if someone rapes them. Once again, we all know the victim is never to blame. And that people should be tought not to rape under any circumstances. But this isn’t something that’s just going to happen overnight, and the fact we’re all talking about it so much shows we’re all aware it’s still an issue. So therefore it makes good sense to make some form of effort to keep yourself and anyone else away from risk until the day finally comes when it’s not an issue.