The master heard how Christina sucked in air, while his finger explored the tight anus of the girl, rubbed in the intimate area. The Master's skillful finger extends, then re-enters, corkscrewing inside her, oiling her for more serious things. The master twisted his finger, making the girl feel it, his knuckles stretching her anus even more. Another deep breath, Christina.” His finger moved further, sliding along her anal tract over the cool, slippery jelly until her knuckles brushed against her stretched asshole. She felt a finger filling her anus, her sphincter trying to push out the foreign object inside her. She felt a spasm as she squeezed her finger, squeezing it tighter. It was really nice, the Master moved his finger back and forth ... slowly, and at the same time professionally, unmistakably playing on the sensitive strings of his slave. The master knew how to be very gentle. He gently moved his finger inside the girl, driving Christina on the edge of orgasm, the Master perfectly explored all the erogenous zones of his slave and could easily bring her to orgasm. Christine felt so good that she was forced to unconsciously move to the beat of the Master's hands in order to increase the pleasant contact with his finger, as far as her restrained position allowed, helping him in her anal fucking. Christina felt she couldn't take it anymore and hated herself for being such a lustful slut, but she didn't want the Master to stop! It was extremely humiliating, the girl's face reddened with shame, but she could not help it. Her body was begging for more. Christina focused on pleasant sensations, the girl increased the speed and amplitude of oncoming movements, she was on the verge of sexual relaxation and felt that she might be lucky and she was about to explode!