Tease Orgasm Denial

The slave is made to wank himself while he is constantly teased by his two Mistresses, who despite how close he gets, wont give him permission to cum. The slave is teased and wanked some more before Mistress Darla spends some time stimulating his G-Spot - they are both really enjoying keeping him on the edge. To continue the slaves sexual torment, Mistress Sidonia sits on his face while Mistress Darla continues stimulating his prostate, they keep making him wank but will they let him cum...