Hi and thanks for this amazing forum. A few days ago, i had an enccounter with a friend. He test negative for HIV six months ago. My concern is this: he i sat on him and, using my hand, rub his penis with my anus. He did not penetrate me. Its this a risky situation? theres was no oral, no fingering, no anal intercourse, just that rub, what doy you think my dear friends? grettings from Mexico.