As long as the girls are teaching Sarahs step-dad the new pecking order in his life, namely with males being at the bottom, they may as well get him used to being degraded on a daily basis. Dava intends to keep him as her slave as she is always adding new males to her stable so together with Ela the girls get him used to eating food from a bowl at their feet. Whatever his stature and power are in the real world are of no use to him here. Here he is nothing but a pig, just another male to be humiliated and degraded. And Dava has many plans for this slave.