I’ll be honest, one of the worst blowjobs I ever had was a gal with no gag reflex at all and the only thing she did after the first 30 seconds was open her mouth as wide as she could and started impaling her face on my dick making the gork gork gork sound.  I don’t get off on women with mascara running down their faces.  It was probably worse than getting blown with one of those massage parlor condoms on.