Mistress Serena wants her two loyal slaves to put on an entertaining show for her, so despite their obvious but non-vocalized protestations, she instructs them to arouse and satisfy their sexual desires by engaging in some bi-play. Testing their willingness to do anything that pleases her, she provides all the encouragement a slave needs to perform this humiliating act and with the help of a firm hand behind the head, thrusting it down over an erect cock, she finally gets the show she wants!