I like to whip mine viciously with a thick leather belt. First with my long foreskin closed over the glans so that all its outside skin is stinging & bruised. Then with my foreskin pulled hard back to fully expose my glans. Then I re-whip my cock so that all my foreskin's inside skin is burning and my glans is throbbing with pain. Only then am I able to shoot a big load of cum. Other times I beat it hard with a 3 inch wide metal spatula, That turns it bright red all over.