Makoto's mark didn't get erased, she just came from his touch..
He did mention that he has an "easier way" to get rid of it that didn't involve having sex, which I sure hope he used while going around releasing all the women affected by Rin's stigma.. The thought of that creepy looking dude going around, banging the wits out of all those ladies of
variable ages did bring a bit of vomit to my mouth.. Talk about getting cucked by your dad, possibly making it impossible for Rin to raise enough money as well..
On a more serious note, I wonder how much the father's stigma is involved in their family structure, as he did say he was using it day in day out. Could have something to do how Rin was born and why Rin's mother is dead..
Also, Rin should use his stigma on Ootori's mother to blackmail the shit out of him, one way or the other