Miss Xi walks into the room and is delighted seeing her slave there, trapped in the floor box. She can inflict any pain on him she wishes and he is helpless to do anything about it except his fate. She starts by walking on his chest and then his dick before moving to the ground between his legs. She asks the slave why he looks so nervous and he says "I'm afraid you're going to kick me in the balls." Xi promises him he won't and as he relaxes she comes with her knee into his groin. "I told you I wouldn't kick you" she says with a laugh.