She was oblivious to the Engineer behind her using a magical device of his own design that imitated the functions of an MRI and PET scanner, he smiled at his confederate to indicate he was happy with the progress so far, his keen eyes trained on the strange machine’s readings. At first, Hermione hardly registered the tone and tenor of the written words changing, initially every fifth or sixth word was a slur or vulgarity, the frequency and debauchery of the language ramped up in quick succession, soon Snape weaved a web of pornographic sentences, his former student unable to resist the imperio command when combined with the collar and control port embedded in her spine leading her to parroted back the words to him. He felt his pants tent when he forced her to repeated the "Property of Voldermort, Property of Slytherin" He rubbed his hand across the lips of the captive’s labia, testing her reaction to the session so far. He noted her dryness as the house elves worked around his improvised intrusions to reach the last vestiges of hair on her nether regions, he passed a knowing smirk to his colleague.