Girlfriend has HIV and has been on Antiretrovirals since been diagnosed. I am not hiv poisitive and we use a condom everytime we have sex. She goes down on me routinely but she will not allow me to go down on her for fear I might catch it. Now I have searched forums and although question has been asked before, I have yet to see a situation that fits this one. Cunninlingus to an HIV person on Antiretrovirals. I have read that hiv positive people have almost a 97% chance of reduced transmission. What about through oral sex