Well FUCK!!!...you took my topic!! I love this topic...I love blow jobs and it is just plain RUDE not to finish. And I know there are a lot of women out there saying "yuk", but it really is rude. Think about it...his cock has been in your hot, wet, soft mouth, receiving an intense rhythmic massage with your tongue (well if your doing it right). You have him going out of his mind...he's ready to burst...and you STOP!!...Then you pop him out of your mouth and in one instant he has gone from warm and wet...to cold and dry...that is enough to shock his cock into a seizure....bad form! And there are those of you that will let him finish in your mouth only to immediately turn your head and SPIT....like some truck stop waitress getting rid of an old piece of chewing gum...that's real sexy.
If you find the taste offensive there is a trick to it....just as he is about to cum, take him to the back of your throat and stay there, when he cums it will go down your throat without you ever tasting it...also it is a big thrill for him to be down that far in your mouth....now, if it is your gag reflex you have a problem with....then go to the Lion's Den, or whatever adult store is near you and ask for "Body Butter"...it is a pleasently flavored cream you put on the back of your tongue and swallow, and it numbs the gag reflex. Come on ladies, if your going to suck dick than suck it...otherwise leave it alone.