Hi guys, i had gone to c a sex worker for an erotic massage. Towards the end of the massage she suddenly spit on my penis head and tried to make it like a lubricant which i was not expecting at all. There was no vaginal, no oral and no anal sex done. Is there a chance for the saliva she spit on my penis head to transmit HIV or other stds. I am seriously worried. Any respond will be of so much help.