Vibrator Penis Milking

Should I let him cum? He is tied flat on his back with his cock sticking out of the bodybag. I started off using my hands to get his cock erect. I had fun teasing, toying & slapping his boner...using my hands & to make him beg to cum. After teasing him for quite a while & denying him orgasm he finally reached the "point of no return". He spurted cum all over as I had the vibrator pressing firmly against his cock. Cumming without permission always comes with consequences... He will be eating all the sperm he ejected prematurely.