This is the path:
Start going down on him, swallow his shaft, in and out, go at it like you're dying of thirst and it's the last popsicle in the world, your favorite flavor...gently massage his testicles...continue suckling like the ______ you are, concentrating on the head...slowly let the fingers of the hand squeezing his balls wander towards his asshole...your other hand should be milking his shaft...stick your finger in his ass..in and out...in and out...then, just when he's ready to cum...put his cock in your left or right cheek, near your molars...and BITE down as HARD as you can!!! He'll LOVE IT!!!!
j/k