In that answer, Teak has not only provided you with direct
quotes from me and from Dr. Handsfield but published papers in the scientific
literature. Despite that, you have asked the same question. I have nothing to add- there has never been a case of HIV proven to be spread from an person to another through the receipt of oral sex. Asking the question repeatedly will not change the answer, nor will it keep people from making incorrect or overly conservative statements on the internet.