I know oral isn't a risk for HIV due to saliva inhibiting the virus, but how safe is swallowing someone's semen if they're positive or not? wouldn't the viral load still affect whether or not transmission occurs or is it still zero risk?
The risk for oral sex is still and always zero. No one gets HIV from oral sex as saliva inactivates the virus. Swallowing semen does not transmit the virus. The only way adults get HIV is from unprotected vaginal or anal sex or sharing IV drug needles. no risk