In a grimy, sweat-soaked dungeon, a BBW slave is bound and gagged, her massive tits heaving as she's forced to deepthroat her stepfather's massive cock. He fucks her throat mercilessly, making her choke and vomit, but he doesn't stop. The room echoes with her muffled gagging and the wet, sloppy sounds of his cock slipping in and out of her mouth. She's his to use, his to train, and he'll fill her throat with cum until she's learned her lesson.