O.K. thanks.... Many women who are into deep throat sex, often assume, that when you're attempting to deep throat someone, that the term "sucking cock" means you have to keep a tight seal around the cock, while deep throating. This is not the actual case. You need to keep your lips loose, as to allow as much air as you can, while deep throating. Breathing through your nose is very helpful, but is not always the easiest thing to do, when dealing with an especially thick cock. Your throat is doing the work, and not your lips, or so any kind of suction isn't needed. If the cock isn't too thick, you can breath around the cock, to some degree. The most important thing to do, is to practice on a dildo as much as possible, unless your male partner, is willing to let you practice on them for a good long while, until you can take him comfortably down your throat. Men with considerable girth, more than 6" around, it does becomes problematic. Patience on the man's part is important. I don't think any man, would like to see anything bad happen to the woman, who's making the extra effort to deep throat them, to choke, or throw up. For the woman, having an empty stomach helps. But of course, practice is the key to becoming better at the task. Being focused and relaxed is also key. Don't expect results right away. But the will to want to do this, is also important. I own and manage a yahoo group, about deep throating, with helpful tips on doing this.