Custom request: your slave has been behaving very good, so you decide to reward him. You start rubbing his cock under your boots. You see that he's getting close but you order him not to cum yet. He is too weak to hold back and cums on your boots. Furious at his disobedience, you decide to punish him. You step in his cum and rub it on his cock as lube, then proceed to make out another cumshot under your boots.