That cake article is rather yuk.
I think one of the issues I have with it is that it seems to be pushing that old thing of "oh, she wanted it really".
The whole comparison with cake seems to be starting from the assumption that cake = lovely and women (all) love cake, any time. So yeah, they may put up a bit of resistance because, ooh, calories and whatnot, but according to the author you just need to give them a drink or persuade them a bit and then they will eat the cake because, y'know, they wanted it all along really..... but then will blame you afterwards for "making" them eat it.
Now sex, yes, women sometimes want sex.. but this is kind of suggesting that we are in a regular state of "wanting it" but pretending we don't/putting up resistance because, ooh, naughty, calories (or something). Rather than the reality, that most of the time we actually would NOT want it right now because - busy, trying to sleep, not in the mood, wrong time/place, scared, don't fancy/know/like the guy, in a relationship with someone else, risks of STDs/pregnancy... or whatever the heck other reason that is nobody's business but ours. Not to mention that if we DO genuinely want sex with someone at a given time, we don't tend to make a big secret of that. So - surprise - if we say no repeatedly (as in the example she gives) it generally does mean "I DON'T WANT SEX WITH YOU SO FUCKING BACK OFF YOU TWAT", and should be taken as such.
But instead the author seems to think that "it doesn't matter how many times you said no", it is OK to keep pestering and if you eventually said yes it is your fault cos you wanted it really eventually gave in. Regardless if it was because you were afraid of the consequences of refusing, because you knew your "no" would be disregarded anyway so it would be easier/safer to say yes, because you were being emotionally abused or whatever. And there's no point going to the police, because who would consider forced "cake eating" to be a problem, cos hey, women always want sex cake? 
The author actually scoffs at the very idea that ‘if they don’t feel free to say no, it’s not consent’ 
