i had sex 3 diff times one day with the same hard on and then like an hour later i went to another girls house and was gonna fuck her too..i couldnt get it up after that and the shit haunts me for ever. like today i was gonna bone someone and i kept thinking about it and it happened again....anyone on the black market for viagra????? i need answers and shit to help. any other time i can get a stiffy XD but i cant when it comes to sex it never happened to me b4 untill that one day now i just cant get over it. usually its like pop and im ready