You cant get it from someone who aint got it. I'll bet you dollars to doughnuts you are fine, cuz he is prolly correct, since he has been tested.
However, to scare the living bejesus out of you so that you wont ever do it again....here are the facts.VERY HIGH RISK:
To yourself if you are HIV-Negative:
Topping an HIV+ ass bareback. 2
Topping an HIV+ ass bareback if you are uncircumcised. 2
Bottoming bareback and taking loads from a partner whose HIV status you do not know.
Having unprotected sex while "partying".
Getting fucked by a cock that just came out of someone else's cum-filled ass.
Using someone else's cum as lube for your ass if you do not know their HIV status.
Barebacking (top or bottom) before, during, or after aggressive assplay with someone whose HIV status you do not know. 3
Barebacking (top or bottom) with active symptoms from other STD's 4
Please note that HIV-Negative tops fucking HIV+Positive bottoms has been upgraded to the level of "Very High Risk" following findings that indicate rectal secretions in the anus contain a higher percentage of HIV than either blood or semen, thereby presenting a more serious risk to HIV-Negative tops than was previously believed. It has also been determined that uncurcumcised men are even more susceptible to infection than circumcised men due to the presence of DC-SIGN in the foreskin. For more information, please visit The Wyas Your Body Betrays in our Health Dept. http://www.barebackhealth.net/health/risks.html