In this intense BDSM training session, a submissive sex slave is degraded and used for their mistress's pleasure. The slave is forced to kneel, their mouth open wide, ready to receive whatever comes their way. The mistress spits into the slave's mouth, commanding them to swallow every drop. The slave complies, their eyes watering. Next, the mistress slaps the slave hard, leaving a red handprint on their cheek. A gag is then shoved into the slave's mouth, holding it open wide. The mistress proceeds to spit and drool into the slave's mouth, making them swallow repeatedly. Finally, the mistress rubs her cunt on the slave's face, making them taste her juices before cumming in their mouth, forcing them to swallow every last drop.