Someone suggested being on your knees in front of him, but I've always found it impossible. Try having him lie on his back, and you kneel next to him or over him (almost like a 69 position, but not quite because you're on your knees and your cooch isn't in his face). Of course, it probably depends how he's shaped or curved or whatever, but I've always found that that way works. Swallowing it down really works, but it's difficult to go in and out and in and out that way, because eventually the gag reflex does kick in. If your man really wants to hold the back of your head and face-fuck you, you can take your time and get it all the way in yourself, swallow it down, and then let him go to town without ever pulling himself all the way from your throat. The only problem with this method is it's only good for one lungful of air at a time...but the breath aspect can sometimes be fun.