I guess when you are horny to hysteria and you're with someone you've been lusting for a long time it can happen. But you damn well better suck it up and keep going for #2 without an interruption. That's just simple pleasure etiquette!
I have always had a hard time cumming. It's almost impossible for me to cum while getting a blowjob(although it feels good as hell). It's not something I'm bragging about because it pisses me off a lot. sometimes I don't cum at all. I think I am backwards for a guy. I once went a whole week without cumming. My girl and I went at it like 4 times a day and I did not cum all week. I kept trying and trying and it just wouldn't happen. I got scared toward the end of the week and thought I was neer going to cum again. I have to get the stroke and everything has to be just right or I don't blow
I can go about 4 hours if need be. I got one of those ejaculation books and studied the techniques. But it hurts like hell once you release after waiting that long! So I keep it 3 hours and under. Only known one chick that could handle the four hours anyways. She had some sort of clitoris, g-spot problem. You could just about put a two bi four in her and she would barely feel it.