Mistress Sarah Kelly has decided Tracey needs some forced exercise, but as always there is a twist. First Mistress inserts a large black rubber butt plug into Tracey’s arse followed by five balls on a string into Tracey’s pussy, but the butt plug seems to have taken the space for the last ball and is proving difficult to push inside until Mistress Sarah mercilessly forces it into Tracey’s over full pussy making Tracey wince with pain. Mistress always likes to see her slaves wearing something tight so Tracey is told to wear a slightly too small wetsuit that will also make sure none of the toys can accidentally come out of Tracey. Now Tracey is told to stand on the exercise step machine where a spiked leather collar is fastened around her neck and her wrists are cuffed to keep her in position. Mistress now explains Tracey will have to complete 5000 steps with no orgasms before she is released knowing how the butt plug and all the balls will be made to move and inter-react with each other inside Tracey, and that for some slaves after only a 1000 steps their body erupts into a body shaking orgasm. For Slave Tracey this will be a test of orgasm denial and stamina if she wants to be set free.