A submissive slave, trained by her dominant mistress, is ordered to pleasure herself until she reaches the brink of orgasm. She hesitates, but the mistress, in her stern, powerful voice, commands her to continue. The slave's fingers work furiously, her breath ragged, until she can't hold back any longer. As she comes, the mistress pushes her down, forcing her to catch her own cum in her mouth. "Swallow every drop, slut," she orders, her voice laced with command and satisfaction.