Std riskcs oral sex. This is because saliva is not one of the fluids that has the potential to pass HIV. There are different terms used to describe types of oral sex:. Cunnilingus describes oral contact with the clitoris, vulva or vaginal opening. Curable with antibiotic medicines. Lots of STIs do not have any initial symptoms, therefore, we recommend regular HIV and STI testing to everyone who is sexually active, including those engaging in oral sex. HIV does not have any checklist of symptoms, and this is exactly why testing is the only way to know for sure. On an individual basis this may be annually, bi-annually, or every few months. Fellatio is the technical term used to describe oral contact with the penis.