A Doctor with a devious business.

Lisa's eyes groggily opened. Last thing she remembered was being bound, blindfolded and stuffed in the back of a trunk. She must have fallen asleep in the car and only now awoke.

What she saw wasn't promising. She had been bound naked to some type of metal bondage machine. She was on her knees and bent forward locked in some metal frame collar. Her wrists were locked behind her allowing her large tits to hang under her. She looked around the room to see dozens of women bound in identical frames.

"Hello my new pet." A male voice said as he approached her wearing a lab coat. "Welcome to the breeding factory." He said with a smile as his hands slipped under her breasts to remove her nipple rings. "We here like to experiment with different types of fertility and lactation **** and as you can guess. You're the new guinea pig."

Lisa moaned as she felt a needle syringe pressed to her left breast and then her right. After the injection her chest started tingling followed by a burning sensation. The man moved behind her and injected her ass with a different mixture. "Soon we'll have you bred and milking. Enjoy." He said with a swift smack to Lisa's round ass.

Lisa's head spun as she looked around the room realizing the other women were in all different states of pregnancy. Milk pumps were attached to several women's breasts and she watched as they drained the women of their milk.

An hour later Lisa felt her chest swelling almost painfully. She watched as the Doctor returned and examined her breasts. "Such fine udders. They developed milk quite fast. Let's get your pumps set up while I start your breeding."

Lisa felt the cold suction of the cups placed over her nipples. Soon the alternating pulling on her tender nips began. She felt the man's lab coat brush against her bare ass as his cock found her wet pussy.

"We like to seed the sows the old fashioned way before hooking you to the breeding machines and artificial methods" He said as he thrust deep.

Lisa felt small cool drops of milk fill the cups before being sucked down into a collection container. Her hips rocked back and forth as the long slick cock pounded deep into her. She could feel the milk start to empty from her breasts. She moaned as the Doctor's pace quickened. He shook the metal frame she was bound to with his deep thrusts.

His huge balls slammed brutally into her shaven pussy as he took her. She moaned like a bitch in heat as he fucked the newest breeding ****. Her tits were now almost squiring milk into the suction cups. She felt him press deep and fill her unprotected womb with his load.

He pulled out and made Lisa clean his cock with her mouth as the pumps continued to drain her tits. She felt used like a piece of meat. Nothing but udders to milk and a womb to breed. She let the hum of the milk machine drift her off to sleep.

Six months later.

Lisa's mouth moved up and down on the thick cock that had finished breeding the new **** bound beside her. Another cock plowed back and forth in her ass getting firm and ready to take his turn with the new sow. Lisa remember months ago when stud after stud had filled her own pussy with cum. Her tits and belly had been much smaller then before the **** had turned her into the perfect breeding sow.

The pumps kicked on and began milking her swollen breasts like they did every three hours. She felt the man pull out of her ass and move to the **** next to her. Her belly shifted as it sagged under her with the weight of her pregnancy. Lisa moaned as the feeling of milk being pulled from her udders made her shiver.

Lisa was resigned to her fate as a breeding ****, used only for her milk and ripe womb. Her conversion was complete. She only wondering how many times they would breed her and what they would do with her once she outlived her usefulness.