Holding his balls in my hand

After a little sucking, when his cock is hard I hold him by the balls and start stroking him. I'm holding his balls in my hand and squeezing them a little while jerking his cock. He can't stay long for such treatment and was ready to unload his sperm but I was faster and ruined his orgasm. What a lovely view, keeping his balls in my hand and watching his hard cock shooting an enormous amount of sperm in tall blasts in the air.