Slave's Cock Edged and Milked to Ruined Orgasm

I've been training My slave to eat My pussy exactly how I like it. I ride his face until I cum hard, my sweet juices dripping down his throat. He's completely helpless, strapped into the spreader bar and I reward him by cruelly edging him and milking his throbbing cock until he explodes. I did not give him permission to cum, so I of course have to punish him for his transgression. He gets slapped in the balls until he begs for mercy.