Earlier quoted context omitted.
But you don't know everything that will come afterwards. You know what's planned. The consent during cannot be valid. It's not informed: in fact it's specifically misled, and that is known to the other participant.
So you are saying there is no way for two willing, informed adults to consent to this happening?
Yes. That is what I'm saying. If consent needs to both informed and continuous, it's not possible. It's fundamentally broken.