Talk about safety and HIV status. Be honest. Take it slow... Suck it the way you want yours sucked. Worship his cock like you are getting life support from it. Suck it long and slow... Let him guide your head with his hands. It's intense letting him control you and use your mouth for his pleasure. Pull it out of your mouth and beat your face with it... Then suck it some more. Gently stroke it with one hand while you milk it with your lips... Wrap you lips around the head of his cock and tease it with your tongue. Don't forget to pay attention to his balls. Lick his nuts and try to get them in your mouth. Use a finger to gently massage the area between his balls and ass. Keep him on the edge as long as you can. If he's about to cum, slow down or stop for a few seconds. Then work him back up until he can't stand it anymore. Then if you both are clean, safe, neg you can decide if you are going to swallow. And if you do, trust me... It will be the best blowjob of both of your lives!