I understand how constent works, and that it can be revoked (by either party) at any moment during sex. I also understand that if one of the parties is drunk, drugged or without their rational senses, and the other person takes advantage of this, it is also considered rape as the victim was not in a position to give consent (even if they seemingly do).
However, what happens when both parties are under the influence of alcohol? What if they meet at a party, both are somewhat drunk and both decide - in that state of mind - to have sex? If neither can give consent, what happens? Because potentially, either one of them (or both even) could wake up the morning after and think "I was drunk, I didn't want sex, I was raped". What then?
In such a scenario, it'd be difficult to prove who was and who wasn't drunk, and the odds are very likely against the male party.
Also, if both parties are in a clear state of mind and consent is given at the beginning, but then revoked... we can all assume the person revoking consent has to be perfectly clear about that, right? Like, try to stop and say "No, I don't want to continue". Because it seems like some are arguing that consent can just be revoked without any indication of it and the man should be constantly confirming that consent is still being given. That'd be nonsense.
Also, can consent be revoked after the whole thing is finished? Can someone (either party) decide the following day that they regret the whole thing and reach the conclusion that they were raped? What if they stop enjoying mid-act but decide not to say anything (out of shame, pressure, whatever), would it still be rape?
I'm not being rethoric, I genuinely would like to know the answer.