Note: This story was dynamically reformatted for online reading convenience. Day sixteen. Skie was one of the new girls and one of the first to be tested with a surgical implant. The thin disk was slightly larger than a dime and was implanted deep in the girls perineum, in the pubococcygeal muscles. The girl was put on a rack and given a local anesthesia. The perineum is that area between a woman's vulva and her anus. It is called her "taint" in redneck slang. The reason is that it "tain't" pussy and it "tain't" ass. A small incision was made along the medial axis, in line with the vulva and anus, and the small Titanium disk inserted. Both internal and external sutures were used to ensure that it is permanently in place. The first several days after the initial implant were painful. Only a sadist would force a girl to suffer vaginal or anal penetration after such an ordeal. Each time a vaginal sphincter, an anal sphincter, or her pubococcygeal muscles flexed or contracted, immense pain followed. The idea behind the Titanium disk was to make a permanent device to monitor, excite, punish, or torment its host. The disk was energized and powered by the girl's motion and internal electrochemical reactions. The other surface of the disk was polished Titanium, to a nanometer smooth. No matter how tissue might try to adhere to the surface it could not. The disk would be free to rotate in place, using her position in the earth's weak magnetic field and other electromagnetic fields artificially produced to generate power and dispense energy. The idea was radical, fundamental, and totally sinister. The wicked implant could be made to radiate infrared rays---intense internal heat---or pulse crippling surges of direct current. It also could induce chemical reactions by varying the surface charges to potentials. It could rotate and spin, twisting and inducing deep internal vibrations. The pubococcygeal muscles would go into spasm. This could enhance an orgasm or force a girl to involuntarily urinate or defecate. The morning after her surgery Skie heard the telltale scraping of metal on metal at her cell door. She quickly rose from her blanket and rushed to the door, placing her hands in the window to be handcuffed. She then realized that she needed to urinate badly. There was no making the guards wait, however. She felt a woman's hand cuff her savagely. There was no need to lock the cuffs that tightly. She then felt the door slam into her back, pushing her forward. She was held in place painfully by the steel cuffs. Tears swelled up in her wide green eyes and poured over hot pink cheeks. She knew that she was to be brutally raped. There was a female matron and two male guards. One male was dropping his pants and hocking his drawers as the second wrestled Skie to the blanket. The matron grabbed on ankle and a guard the other. The half-naked Neanderthal then mounted the hapless inmate and begin to pump her savagely. He pushed straight down, making sure that his glans penis struck her pubococcygeal muscles. She couldn't believe the intensity of the pain. The disk twisted and energized itself, forcing her sphincters into spasm. Her bowels also went into spastic seizure, making her ass hole hurt as if a nail were being driven into it. She screamed. The guard slapped her face hard, first one cheek and then the other. He would pause after pumping her for a few minutes and shove his thumb into her Holy of Holies, teasing her G-spot and rubbing his rough thumbnail on the tender cervix of her womb. He keep rubbing and pushing until the mucus plug detached and rested on his thumbnail. He withdrew the gooey mess and held it to her lips. She knew what had to be done. She sucked his thumb, ingurgitating her own phlegm and swallowing it. Then the burning urge to urinate struck her soundly. She twitched and squirmed. "Please," she begged, "let a girl relieve herself." The trio laughed. She would have to wet her own blanket. The half-naked guard entered her again, this time pushing his belly to her abdomen. She couldn't hold her piss any longer and wet herself thoroughly. The matron held her hands to catch some of the golden stream and offered it to the girl to drink. She drank from her own cistern. Again the guard raped her, each time taking a break to avoid ejaculating. He wanted her to suffer before reaching his climax. Despite the intense pain, she was becoming aroused. Now the incarnate evil of the Titanium disk became clear. It was forcing her to total arousal. She felt her vagina secrete its honey nectar. She felt the cream of ambrosia form on her vulva, her dark red pussy lips. She licked her lips, she mouth still damp from urine and mucus, as she felt the foam form on her pudenda. He came inside her, now pushing his foul-smelling penis to the terminus of her vagina. He could feel her rectum, sacrum, coccyx, and anus with his hard cock. At last he was done. Then the second guard took his turn. They turned Skie from supine to prone. Now the glorious hemispheres of her carved ivory derriere shone as two moons in the Gorean heaven. She tried to relax, knowing that if she resisted they would force her and she could suffer serious injury. In fact the guard wasn't about to be gentle or patient in any case. His massive member aimed straight at her perineum, sticking the stitches and working up, separating her buttocks and jabbing her tender prune. She was able to relax her anus but the Titanium disk made her colon constrict. The guard was in no mood to wait. He shoved himself in with all his strength, brutally distending the girl's bowels. She convulsed and shook. She first held her breath then gasped for breath. The penis insisted on full entrance. She felt her pulse quicken and knew that she was nearly unconscious. He grabbed her teats from behind and squeezed them. The other two were holding her legs. The guard twisted, pinched, pulled, and squeezed her breasts as he sodomized her. Still the wretched disk keep her aroused, making her pleasure rise with the pain. He came inside her rectum, pulling out his strong shaft and leaving a stringy mucus trail of viscous semen. The thin viscous pre-orgasm fluid coated her anus. She felt sticky and wished there were someway she could wipe herself. Then the cruel matron had Skie stand. She would "examine" her. First the matron looked at the stitches. They were holding firm. Then she inserted a pear-shaped device into Skie's sore cunt. With a small Allen wrench she twisted an internal worm gear. The pear blossomed as its hemispheres separated, spreading her twat wider and wider. Skie had never felt such trauma before. She had no idea that such a device even existed. The matron then explained the pear and its origin in the middle ages. The matron attached a chain to the pear. With her vagina stretch, Skie knew that there was no way that she could work the pair out of her vulva. She was too tight. The matron jerked the chain. Skie tried to vomit but only yellow bile spewed out. One guard held her shoulders while another spanked her ass. "Pull it out, girl," he commanded. The matron yanked the chain again. Skie felt the pear come forward as her labia minora distended painfully. Then the matron relaxed the chain and Skie could feel it slip back inside her pussy. Again the guard spanked her ass and told her to pull. The contest between matron and guard over Skie's pussy went on for fifteen miserable minutes. Droplets of blood begin to ooze from her lacerated vulva. At last the matron came right up to the girl and slapped her face. She loosened the hex nut with an Allen wrench and jerked the pear out. Skie's hypogastric triangle was a playground wet with male semen, urine, vaginal fluid, and blood. Both guards and the matron then let Skie drink their urine. This was her first day in the prison. She had undergone her initiation into prison life.