Hi Gavin,
At the end of the day, these are only numbers and statistics. What I can say though is that in many years of clinical experience I ahve never had any case of HIV infection contracted by receptive oral sex. That must mean something.
Everything we do in life can involve certain risks, but we still do things. We always have to make choices. Driving a car is certainly more dangerous than performing a blow job, but I am sure that you are still going to continue driving. It is up to the individual to decide what risks are reasonable to take and what are not.
Regarding the figures, in your case you did not know the status of the different guys. Therefore the risk is between 0 to 0.006%. In the case of penetrative insertive anal sex, in the case of unkown status is 0.06%. However if the other person is positive, the risk increases to 0.1% (1 in 1,000), which with receptive oral with a HIV individual, this risk would still remain 0% to 0.04% (between 0 to 1 in 2,500). This is a huge difference!!
Best wishes,
Jose
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