Hello, over 6 weeks ago I had a brief homosexual encounter with a man. There was brief oral play, maybe 2-3 minutes. He then licked my anus for maybe 30 seconds. He then rubbed his penis on my anus once, then quickly inserted what must have been the head of his penis into my anus. He went in and out, the insertion must have lasted about one second, two at the most. It felt somewhat painful, and I told him to stop and we proceeded no further. I was unhappy with him going in unprotected and the encounter ended. I checked my anus and there was no blood. I do not remember seeing any precum on his penis. With anal sex being so risky, my question is if I was at high risk of contracting HIV from a 1-2 second insertion and do I need to get tested right away? I asked him about his status and he said he was "clean" and that he uses condoms always, although I doubt that and have no proof of his status. This is the only time I could have been exposed. Thank you for your time and help.