Reading comprehension is not your strength my friend.
First I wrote: "If I beat you with a hammer until you allow me to f*ck you in the ass, that's not rape, it's consensual lovemaking."
Then I wrote even clearer: "So by extension, if I hit you with a hammer and thereby obtained your consent to sodomize you, it not rape because you consented."
In both cases I obtained your consent before the ass fucking started. So you have the choice, to consent or to not consent.