Imagine someone using your mouth as a sex toy. They grip your hair and just pull your head back and forth on their cock. You choke and gag and raise your hands to try and stop them, but they just slap your face until you lower them. They keep fucking your throat, and when they cum, they push their cock all the way down, holding the back of your head so that no matter how hard you struggle, you have to take every inch. As you feel their cum gush down your throat, your vision darkens from a lack of oxygen. Eventually they pull out, and all you can do is cough and gasp for breath, as drool, cum, and tears drip from your chin.