Hi, about 3 months ago I gave oral sex to a man. It was for only a few min and he did not "finish" in my mouth. At one point I did taste something salty, assumed it was pre ejaculation an then I stopped. It wasn't even enough for me to actually swallow anything, just simply the taste of it on my tongue. Is there any risk in contracting HIV this way? He said he was clean and that I have nothing to worry about. But I still worry!