Your risk of contracting HIV from the event you described, is non existant,,, Zero. Oral sex is the lowest risk behavior and the only small number of reported cases known to date are from performing BJ when ejaculation was involved.
I disagree with you, why vagina should not be licked? I think living in India, you better read original hindi version of Kama Sutra and you will find how wonderful it is. However, agreeing with siteheld, choosing the one to be licked, is a metter of choice and liking, which varies from person to person
Are you sure you are not in the habit of licking call girls' p......?
You have strong mind. I wouldn't be able to perform oral on a stranger even if he didn't have HIV.
Don't take it for a habit because the CDC has news for you.
Read what they say about oral. I find it hard to believe that you only licked once. Whatever.
You have absolutely zero chances of contracting HIV. Don't worry - you are fine.