A Mistress, cruel yet captivating, trains her bisexual slave in the art of cuckolding. She orders him to pleasure her cuckold's cock, pushing his boundaries. The slave, face flushed with arousal and shame, takes the thick cock in his mouth, feeling every ridge and vein. He sucks, licks, and jerks it off, all while his Mistress humiliates him, telling him he's nothing but a cum dump for her cuckolds. The slave's own cock aches, leaking pre-cum, as he brings the cuckold to the brink, ready to receive his hot, sticky reward.