Now that it's all lubed up in your spit you have to tease him, open your mouth slowly and let it slide inside.
Suck on it, slowly, nice and slow, up and down. At this point the guy will try to push it in your slutty mouth, simulate it with your hand, try to shove it in your mouth and push your head back to keep on sucking just the tip, don't let him use your head as a fuck toy, take your time to play and keep stroking your cock.
After two minutes you will have to let it go and suck it, then just