The Dr. snarled "Get out of those clothes, I need you absolutely naked for my initial examination!" Agp millie quickly complied, her face reddening at the cold perverse way the doctor stared at her huge pendulous breasts when she pulled off the sack cloth dress. He motioned her to approach him with an impatient scowl and agitated gesture with his hand. When agp millie was standing right in front of him, he grabbed her right breast in his large muscular hands and practically pulled her off the ground as he squeezed her breast with a vise-like grip and twisted the whole tit upward to inspect her nipple and areola. He repeated the painful examination on her left globe. He then pinched her distended nipples between the thumbs and curled forfingers of each hand and pulled till agp millie was sure her nipples were going to be torn right off. When he finally releasd his grip, she groaned and opened her eyes to find the Dr. staring right into her face: "Very good," he said "you have good pain response, the correct submissiveness and sufficiently large mammaries for my research." He then practically pushed her across the lab to a apparatus that was half gynecological table, and half torture rack. It was equipped with elongated stirrups that would securely hold her legs, ankle to knee; and a vertical bar with straps for her waist and head. There was also a thick cross bar that he now draped her arms over. He then strapped her arms together from wrist to elbow, which caused her to arch her back and thrust her tits even farther forward. After her legs were tightly buckled, and her waist cinched tight; he adjusted the stirrup mounts till her legs were spread painfully wide. He bent over and grabbed agp millies pussy lips and pulled them wide. Then using the finger and thumb of one hand to hold her labia open, he pinched and pulled her engorged little clitoris unmercifully with his free hand. The Doctor then roughly jammed two thick fingers into agp millie's cunt, and actually cracking a little smile as he noted the extreme wetness he found. The Dr. rolled the trolley with the array of syringes over next to her, then adjusted the whole device so that she was leaned back with her huge breasts thrust straight up in the air. The Dr. connected all the wires and sensors to various points on her body, clipping them to her rather than using adhesive. She shuddered as she realized the clipped rather than pasted sensors, and the robust restraints might have something to do with how much thrashing around she was going to be doing. She then heard the sound of his zipper opening; "Last probe to insert," he said, and she was then somewhat surprized when he jammed his substantial cock deep into her snatch. "This first application will be the rough one!" the Dr. said, with too much relish in his voice, "it's meant to set the baseline for my other tests, by causing you so much agony so quickly that you will pass out from the pain." He chose the brakenish grey fluid filled syringe and quickly plunged it into the side of her left breast and injected a carfully-metered 5cc into the very center of her tit. Even as he was pulling the needle out of her, she felt a rapidly escalating feeling of warmth, then burning heat deep in her breast. The mounting pain was shocking in its intensity, like her flesh was being cooked from the inside out. Her face contorted as she tried to be a "good" test subject and just take it, but the agony of the increasing pain soon had her screaming at the top of her lungs. Her body shuddered then shook with increased animation, at least as much as the buckles and straps would allow. She particularly thrashed her toso around, shaking her tits violently, as if she were trying to shake them (especially the injected one) right off of her chest. The sensations of her spasming cunt muscles around his dick were undoubtedly exciting, but the doctor seemed to be paying more attention to his stopwatch. The pain in agp millies left busom grew and grew, she never knew a single part of her body could hurt so much, and keep hurting more and more. She thought her head was going to explode when she finally, mercifully; passed out. "Two minutes, longest yet" the Dr. muttered to himself, "I'm going to have a lot of fun torturing...er, 'testing' this one before I'm done with her...."