She was strapped to the inversion table, leather bands biting into her flesh at her calf, thigh, waist, just below her breasts, around her neck, across her forehead, biceps, and forearms. He had it tilted slightly. Just enough to make the blood flow to her head, but not enough to cause her to pass out. She could stay in this position for a long time, she knew. This was his favorite. He had full access to her front in this position.
Her ass was still sore from the disciplining he had given her for being late. Three minutes had cost her thirty lashes with his belt. She had almost been crying by the end of it, but she had known the price. The discipline is why she had stood in the hallway for seven minutes before knocking. She craved his belt, almost like she craved air or water.
She could hear him beside her, readying something, just out of view. She was so on edge today. It felt like all of her nerves, across her entire body, were tingling, it must have been the spanking. She so desperately needed to cum. It was all she could think about.
He finally came into view and in his hand he had a wheel of sorts. This was new. The wheel had spikes all the way around it and it had a handle and gleamed in the dim light of his playroom. The spikes appeared to be extremely sharp. She didn't know what it was, and couldn't ask, for the gag she was wearing.
"This is called a Wartenberg wheel. It is for putting you on edge. It won't make you cum, but it will deliver an entirely new sensation to your body." He told her as he reached down to trace her inner thigh with it.
She felt it. Like being pierced with needles. It was so different, she couldn't be sure if she liked it or not. Then, as he got closer and closer to her dripping pussy, he used his other hand to spread her open, revealing her clit, and she gasped around the gag in her mouth.
Before it even touched her lips, she could feel it, and then, it did. It hurt in the most delicious way. The fact that she knew that no matter how much she tried, she could not get away from it, made it hurt so much better.
She felt him running it over her again and again. Covering every single spot of her inner lips, each time moving closer and closer to her swollen and throbbing clit. Then, when he finally reached it, she felt the sharpest pang yet and thought she was going to explode. She was powerless, it would have only taken the lightest touch to make her cum. This new sensation, almost unbearable in pain and pleasure simultaneously, had mastered her.
All at once, he rolled it over her clit and up across her mound. She felt the sensation crawling, ever so slowly, up her torso, towards her exposed breasts with the large pink areolas, and her erect nipples. She felt the needle sharp tips touching down, drawing ever nearer to her nipple. She gasped around the gag as the wheel began its ascend upward. Then, as it crossed onto her hard nipple, she gasped again.