Imogen steps all over her slaves back in shorts and stockings she is stepping on him so that Rebecca can step all over his head so he don't escape whilst she changes her shoes, Rebecca steps on his head in lots of shoes and the girls have great fun trampling him, Imogen then sits on him her job is to keep him on the floor as long as he is beneath her so Rebecca can punish him beneath all of her shoes, please look at the gif image to see what shoes and boots Rebecca is wearing. (Clip is 20:02)