She directed the slave back to her low stool, watching as she quickly seated her ass on the chair accommodating the dildo with an ease that belied the anal intruders massive girth. Narcissa couldn’t help but complement her student, smiling as the prisoner’s breasts were presented on command. The feeding tubes were set in place by a casual flick of her wand. The irony was not lost on the Malfoy matriarch that the successive force-feeding of the contents of the Mudblood’s breasts had kickstarted her slave’s body ability to replenish the milk perpetually. This last cycle solidified the body’s purpose to amply produce milk, there was no known way to undo these changes. The only change allowed would be to extend the yield of the mammary glands with the enjoyable benefits of increasing the prisoner’s breast size.