Thank you for your inquiry. From what we gather from the question, you were asking about the risk of performing oral sex without a barrier. From the information given, this scenario is determined to be Low Risk (evidence of transmission occurs through these activities when certain conditions are met).
The risk of HIV transmission through cunnilingus is very low (1). In order for HIV to be transmitted, an HIV positive fluid such as vaginal fluid or blood must have direct access to your bloodstream. Factors that increase the risk of HIV transmission through cunnilingus are the presence of cuts, sores abrasions or bleeding gum disease in the oral cavity of the individual preforming, or if the recipient is on their menstrual period (2),(3).
There are options to decrease the risk of HIV transmission through oral sex such as dental dams, or condoms that have been cut in order to prevent blood or vaginal fluids from entering the oral cavity.
Recommendation: Refer to a health care provider for HIV testing
AIDS Vancouver Helpline/Online, Rashell
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1.) Oral Sex and HIV Risk.
2.) Oral Health in Oral Sex.
3.) Female-to-female HIV Transmission.