No, thank God. I don't have a sensitive gag reflex, but remember guys, some of us do! Don't over do it with the deep throating unless you know what you're doing. In other words, ease into it, if you want to try it; no thrusting away like her mouth is a pussy unless you're both sure she can take it. Something not so pleasant may happen otherwise...
I don't like the gag sounds some women make during deep throating in porn. Some people seem to like it, for some reason. It's a major turn off for me, like smacking your lips while you eat. Stop it! Do you have to make that gross noise while you're doing that? Now be quiet, and suck that cock like a lady!