Thank you for your inquiry. From what we gather from the question, you were asking about the risk of acquiring HIV after receiving unprotected oral sex. From the information given, this scenario is determined to be Negligible Risk (there is no evidence or no documented cases of transmission. However, there is a theoretical possibility of transmission under certain extenuating circumstances).
The scenario mentioned above could meet the three components of the transmission equation. If a large amount of blood was present in the saliva, then there is a theoretical risk of transmission through the urethra and/or mucous membranes of your penis.
In the future, consider using condoms or other protective barriers during sexual activities to reduce your risk of acquiring HIV. Please note that any spanking or slapping that occurred does not alter the risk of transmission. Further, contact of blood or vaginal fluid to intact skin (eg. upper back/buttocks) does not provide direct access to the bloodstream.
Recommendation: There is no evidence or no documented cases of transmission. Refer to a healthcare professional for more personalized answers.
AIDS Vancouver Helpline/Online, Marie
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