What is the philosophy behind the "consent culture" movement?

I am seeing it becoming more mainstream. Advocates will say that it should replace traditional social norms and sex culture.<br><br>What I understand it to be is that consent can and should be given at any stage of sexual activity, and that "no means no" isn't enough, rather "yes means yes" should be the mantra. Any sexual activity should be 110% consensual, enthusiastically consensual, if you will.<br><br>I read a paper on it and the conclusion was that it should be normalized because it eliminates rape culture, negates sexual assault, and promotes healthy sexual relationships. <br><br>But when I see it in action, it just seems so overly complicated and awkward. In every healthy sexual relationship that I've seen or been in, a simple no was enough to communicate that consent was being revoked. It seems like this movement would lead to, or even promote the idea that men and women need to go through some sort of pre-sex ritual where they confirm consent every step of the way, and that seems so overly complicated to me.<br><br>What do you guys think?