Same here. Love how it feels just before and as its cumming. You can feel the head and shaft all of a sudden grow even harder till it seems it will split the skin and then it starts to convulse as you feel that first warm thick shot of cum either against your throat or over your tongue and then you keep sucking until no more shooting and his legs start to shake, but still, you keep sucking until he hunches over and uses his hands to forcefully push your head, lips and mouth off his softening cock. mmmmmThe way that the cock feels just before the guy cums, when he's thrusting and moaning and it's throbbing in your mouth. It's so hot it's unbelievable.