Exhausting his balls with 3 cumshots

I put six cock rings on his cock and balls and start working on him. He feels very comfortable and tried to cheat me and finnish with a premature cumshot but I didn't allow him . I stopped all my activities and after a moment only one small drop of sperm flow from his cock. Now I can continue playing with him and squeezing and massaging his balls until he is about to cum. I ruined his orgasm but this time he shoot a huge load od sperm in many blasts so I can say that I'm satisfied with this view and I continue playing with him and make him to cum third time. His balls are exhausted now and my fun is over, what a pity , maybe next time will be better.