For me personally I like to sit in a chair and have her look at me as much as possible. Instant no no - no teeth contact (unless before hand you are gently nibbling the wall of the penis - but not the head), or you are starting all over again. Important - be naked, it's abig arousal factor. Most important is to use lots of spit so that the man is very wet, look extremely excited and turned on. Use the hand as well as the mouth, some times masturbate real fast then slow before sliding your lips over it. Sometimes fast sometimes slow. If you mix it up a bit then you don't struggle to breath. It's a good one to bend over infront of him before you start and give a brief improptu show of your pussy and ass, touch them, spread them, look at him chekily over your shoulder. Then as you start, smear your own wetness on his penis, spit on it if you like. Don't just lick your hand, doesn't work. Work your hand up and over the top in circular motions in between sucking. And you can also masturbate him into your mouth while still being able to breath. If spit and juice is flying everywhere and on your lips/ cheeks it will get him excited. And the wetter the better so you can't tell in the end what is spit or cum. When he comes, two options i like is swallow it or spit it out on his penis while still sliding it in and out of your mouth. Some guys like to cum on the girls face, but if I do this I like to cum on your stuck out tongue while you look at me rather than all over your face. but that's preference.