Me and a buddy of mine were watching some porn and stroking with some lube one time. He says tell me how u like this and reaches over and starts running his hand up and down my shaft with his palm going over my cock head. After a minute or so of that, I said hold off man or I'm gonna cum. After saying that he leans over, takes my cock in his mouth and as soon as he did that I started shooting. I said oh fuck man. What are you doing? He said I knew you were about to shoot and I wanted to see what it tasted like. When I started shooting he went almost all the way down and stayed there till I stopped.