One time my ex and I were playing fantasy and she was getting me all worked up, but wouldn't let me cum. She would masturbate me right to the point of cumming and then stop. She did this for nearly an hour. When that bastard finally came, I have never seen anything like it. It was like 10 orgasms in one. Enough to fill a full glass and it shot clear across the room. I had to do some serious muff diving for that. That was the best physcial sensation in the world.