Rarity suddenly shook her head deeply as she tried her utmost best to keep her attention away from her sister. "No you foolish mare, you do not do it... Not from her, not from them. I don't care how thirsty you are, I will not do it," she muttered against herself in the almost inaudible tone. Then her eyes fell back on her sister and the dark nature rose right back in her as she opened her mouth. She was ready to strike down upon her helpless prey.