"But…"
Villiers hit her twice with his open palm, rocking her head from side to side. "You are not permitted to talk back during experiments! You will be taught many things pertaining to the nature of your psyche while you are here, but you are not to comment on them! Do you understand?"
Marcy nodded, but she was more confused than ever. His whole attitude toward her was changing. Where he had simply regarded her as a human guinea pig before, he had now turned cruel in a deliberate, more personal way. And for some inexplicable reason, the sting of his palm on her cheek had started a fresh bubbling of excitement deep in the pit of her quivering pussy.
"Since you wish to be used, I shall use you," Villiers said. "I shall direct my experimentation toward the full awakening of your masochistic soul. When I am through with you for this session, you will be a better woman, more fit for the experiences that lie ahead with other individuals."
"No," Marcy protested weakly. "I didn't come here to be treated this way. I agreed to take part in a series of specific experiments and…"
Villiers' fist lashed out, and exploded like a rocket in her face. Her head rocked back, striking the head of the bed, and a trickle of blood appeared at the corner of her mouth.
"You will also recall that the document you signed relieves me of any and all responsibility for physical or emotional injury you may sustain, and requires you to participate in any experiment I see fit to conduct, no matter how ignominious, degrading, or painful it may be to you."
"But I…"
"No! No more talk! You will be quiet like a mouse, and we will both learn much about the whorish nature of your psyche."
"No – I'm a good girl," Marcy whimpered. "I'm a virgin – a virgin."
"Technically, yes," he agreed, "but deep inside you have always been a whore, and from now on you will be Dirk Villiers' whore. Do you understand? You sucked my cock of your own free will, and that has made you my thing."
Marcy nodded meekly. With the force of his blow still making her head ring, that seemed to make sense.
"Of course, Doctor," she heard herself say. "You are right. I am a whore – a cheap, cock-sucking whore."
Just saying the words made her loins ache with lust. She rubbed her thighs together so that the inner lips of her sex would grind together and increase the feeling of pleasure.
"I'm a dirty, cock-sucking slut. What would you have your slutish whore do next? Will you break my cherry with your great strong cock, and leave me split and bleeding at your feet?"
Marcy had never dreamed words could be so wildly exciting. She increased the effect by throwing herself at his feet and starting to kiss them. She kissed her way along the instep of his foot, down under the arch, and over the sole. Then she paused to run her tongue between his toes, wriggling her bottom lustfully all the time. Was this Marcy McCall? Was this the tightly controlled, rigidly reserved virgin who was kneeling before this man, kissing his feet, and feeling her cunt throbbing with the pleasure of it?
"We will preserve the precious cherry for a later experiment," Villiers said. "Right now, I want you to roll over on your belly, spread your legs wide, and present your whorish ass for penetration by my prick."
"Yes, Doctor," she said obediently, still marveling at her new docility. If anyone had dared to suggest such a thing even a few hours ago, she would have been outraged beyond belief. Now she accepted it without question.
She rolled over onto her stomach, her hands stretched up over her head and her thighs spread wide to open the cheeks of her ass. Then she waited patiently, even eagerly, for the pain she knew was coming.
"Excellent!" Dr. Villiers said. "A whore in a whore's position, ready to be fucked as a whore should be."
Marcy squirmed ecstatically, rubbing her lusting loins against the mattress and stirring the already boiling juices to white-hot heat.
Then his heavy body was pressing down on hers, his erect cock tickling along her spine and over the mounds of her buttocks, before pressing into the deep crevice between.
"This is experiment number V-3 on subject X-999," Villiers said, apparently for the benefit of the hidden microphone and cameras. "The penetration by an aristocratic, king-sized cock of the ass of a common woman of the streets. She has been used by so many men that only her ass is tight enough to provide any sensation."
Marcy squirmed lustfully. "Yes – yes," she panted. "I've been used by so many cocks that I'm loose as hell in front."
Dr. Villiers leaned down close and whispered in her ear. "I assure you, my dear, this is going to hurt and hurt badly. But deep down in your heart of hearts, you will love every excruciating minute of it."
"Yes – yes," Marcy breathed, "hurt me, hurt me!"
She felt the hardness of his tool against her delicate little rosebud, and a shiver of fear mixed with excitement shook her. It was almost as though she were a blushing bride about to be taken by her masterful husband for the first time.
The monstrous rod was trying to enter now, straining to force open the tight bud of her anus, shoving hard against the barrier to the unused asshole.
"Ha! It is too tight. We must spread you more," Dr. Villiers said, getting his legs between her thighs and forcing them so wide apart that Marcy was sure she would rip up the middle. She held her breath for as long as she could, and then cried out with the pain.
"What's the matter, little whore? Am I hurting you?"
Marcy nodded, unable to speak, and he twisted a hand in her blonde hair, and yanked her head around so she could look into his stormy eyes. "That is good. Pleasure-pain is the object of this experiment, and you are the perfect subject for it. Hurt you is what we want to do, and hurt you we shall, until you scream and sob with the pure lustful pleasure of it. Do you understand?"
Marcy nodded again, and then felt the head of his iron rod pushing brutally into the tight passageway. It hurt! Oh God, it hurt! Red and black flashes of pure agony stabbed through her, and were followed by alternate waves of the most incredible sensual delight she had ever known.
She screamed silently as the knobby head, having breached the entrance of her anus, was halted by the powerful sphincter muscle.
"Such a tight little ass," Dr. Villiers said. "But you must relax this constricting band so I can probe its pink and brown depths with my hot prick."
"I'm trying – oh God, I'm trying!" Marcy gasped, pounding her fists on the bed. "Don't take it out – please – oh, it hurts so goooood!"
Villiers slapped her sharply on the butt. "Shake your ass, whore! Welcome the prick that pins you to the bed like the slut you are!"
He reared upward and plunged down again. Marcy shrieked as she felt herself cracking and tearing to accommodate the huge weapon. She was sure that a bar of steel rammed up her back passage could be no more searing.
"Let me help you feel more joy," Dr. Villiers said, his arms going around her, his hands seeking her breasts. At first she thought he intended to caress them to take her mind off the knifing, burning rawness her asshole had become.
But she found that he had no intention of depriving her of a single instant of agony. His fingers closed on her tender tit flesh, squeezing and twisting cruelly. Marcy screamed and howled at the sea of flaming pain which washed over her.
"Be quiet, little whore!" he hissed in her ear. "Do you want everyone to know what delicious pain you are enduring?"
"I-I'm s-sorry," she wailed, "I c-c-can't help it!"
"Then I'll have to assist you," he said, and twisted his upper body sideways so he could scoop up her bra and panties from the floor. Jamming the wet scrap of nylon into her mouth, he tied the gag in place with her bra. Marcy wondered what the tangy taste was, and then realized it was her own cunt juice. Somehow that made the whole situation perfect. How fitting that while her ass was being used as a fuckhole, she should be sucking her own cunt juice and sweat from her panties! How devastatingly degrading and humiliating it was! How much more fun this disgusting Marcy had than the cool virgin ever imagined!