His pleadings to her sense didn't help much, instead just another barrage of insults against him as a man and a clear hint what he could do with his male organ towards her to make her obey hit him. She showed all the typical evidence of being possessed by something and after calling up the right formula for it his suspicion was confirmed, she really was possessed exactly by what he was slightly unsure more than it was some kind of spirit. That the spirit was in control held no doubt and it was quite clear that it wouldn't let him get near it without a fight... so far it was verbal but who knew what it might do if he pushed it too far.