There are 4 main components that combine to create great oral sex. Like dancing, sometimes you put all the steps together in one move and other times you slow down the pace, but more than likely you are constantly varying your moves to the beat and according to how you feel at the moment.
Rhythm, as in dancing, can and will change with each partner, depending on his specific likes and dislikes. There are four different motions you use whenever performing oral sex. When and how you use them will depend on your rhythm, but the motions themselves are always the same. And FYI, the more manual you do on him the less time the oral is likely to take.
-You seal your hand to your mouth in the ring shape. Or, if you want just use your mouth, but it will be more tiring.
-Your mouth (with teeth covered) is moving up and down his shaft to increase length of the stimulation area for him.
-Your tongue is always moving in a back-and-forth or circular motion across the frenulum area, which is the V-shaped notch at the back of the head of the penis. This allows him to feel the more textured tastebud surface throughout the experience.
-Your free hand is stimulating another part of his body, such as the nipples, inner thighs, perineal area or anus, in order to broaden the area of sensual pleasure. Or even yourself.
On the subject of swallowing, or allowing him to come in your mouth: your mouth, your choice. They like it because it makes them feel one of the most masculine parts of them has been accepted. Should you choose to do so, you can heighten the sensation he feels when e'jaculating, either in or not in your mouth, by pulsing your now still hands wrapped around his shaft in time with the e'jaculations.
If you put the steps together, it should look like this:
Use your hands to form the Ring and Seal. Remember your hand stays attached at all times to your mouth.
Move your mouth up and down the length of his shaft, while maintaining a comfortable level of suction. You won't have to create much suction as your Ring can create the sensation of suction when you do the upward stroke. At the same time, your sealed hand, the one attached to your mouth, is doing a twisting motion while you are going up and down his shaft.
Keep your tongue in constant motion, across the frenulum, and you can use either the tastebud surface or the smooth underside to create sensation.
Don't forget to mind the babies. Invariably his testicles like to be held, fondled and warmed in your hands or mouth, so move occasionally to lick the scrotum and testicles. Worried about hair? Gently stroke the area beforehand to remove any loose little hairs. Ask him to hold your hand on them in the way he prefers.
Let your free hand roam the rest of his body.
Look him in the eye. make him watch you.