The young slave is tied to a chair, his arms are behind his back, he is gagged and his cock is already erect from the anticipation. Mistress Princess sits down next to him and she tells him casually that she is here to test the orgasm control on him and because last time he didn't perform too pleasantly, now is the time to prove his worth. But unfortunately Mistress is too good in milking and the slave can't control his orgasm at all.