But, If there is blood on spit? Maybe Gum bleeding i don't know?
I had similar question and the answer is, no, the HIV virus can NOT survive in saliva. So oral is not a risk, especially when your the recipient of it. It's virtually impossible. Kissing on the lips is zero risk. It's like shaking hands...can't happen. I got nervous too, but people here know their stuff and you are fine.