"Yes, sir." he dutifully replied and held still. Then he felt the sting, and prepared himself for the dreaded onset of girlhood. It wouldn't be so gradual as the original virus, of course. His father had long since perfected his control of the time of the transformation. He began to feel a warmth and tingling spread through his body. It prickled and stung, and the warmth grew into a burn. His father watched keenly as the pain mounted, and Stephen held out as long as he could, hoping to impress his father, but as white hot agony overwhelmed his mind, eventually he gave in. When he stopped fighting it, the pain instantly shifted to pleasure, and all the accumulated energy transformed him nearly in an instant. A girlish gasp left his instantly softening cherry lips as two C cup breasts exploded from the 16 year old's frame. His hips widened, his waist caved in, his legs grew slender and luscious. As long hair fell across his face a small part of his brain noted that he was a blonde this time. Of course.
His father had desired that perky young blonde at the store today. Anyone would. She was a rare blossom, blissful in her femininity; one of the rare few females that actually enjoyed this world, enjoyed submitting to and serving men. She had pranced around the supermarket in a tiny little skirt and flashed her frilly pink panties at every male that looked her way with a smile and a wink. Every male wanted to fuck her. Stephen certainly did. Jonah had asked the girl's father if he might fuck her, had even offered to pay a hefty sum of money, but the father guarded his treasure jealously, and would not allow it. Then Stephen had noticed his father very sneakily steal a single hair from her head after giving it a friendly pat, and he knew that before the day was done he'd be a little TOO deep inside that sexy little body.
As the transformation reached it's end, the last thing to go was his cock and balls. He had a raging erection now, which ached to cum, but he knew he'd lose it if it did. He fought tooth and nail, but as the pleasure mounted higher and higher it just felt too good! Soon he was vigorously jerking off, and then he was cumming, but no cum came, only the clear juices of a woman leaked out of his rapidly dwindling member. He grasped at it desperately as if he might somehow prevent it's loss, but it slipped between his fingers. Then his balls were violently sucked in, first one, and then the other, each one causing an feminine "ooh!" to escape *her* lips as she shuddered from the pleasure of them traveling up inside of her new feminine passage.
Stephen stood gasping for breath, now a fully female young virgin, naked and dripping sweat and pussy juice, with rosy red nipples jutting out fully erect for her father to see, and he leered at her with shameless lust and glee. That transformation had been the most pleasurable yet. Her father's modifications to the virus were improving. But Stephen's momentary daze of bliss was shattered at the thought of how horribly she had failed. She tried not to sob, but a single tear did fall from her eye.
"Dry your tears, Stephanie. We have work to do."
"Yes, father." she said.
"What did you say, girl?" demanded Jonah, "You know how you are to address me properly when you are female."
Stephanie paled. She couldn't believe she'd unthinkingly made such a blunder. "Yes, daddy! I'm sorry, daddy. Please forgive me, daddy."
"Oh no, you're not getting off that easily, girl." Jonah said with a smile as he pulled up and sat in a chair. "Now come lie across my lap and prepare to have that sweet little ass reddened.
Stephanie was shocked at this. Her father had never quite gone as far as to engage in any open sexual contact with her before. Yet she couldn't refuse. Even if she might have dared to normally, she could scarcely think right now. She was still so sexually charged that her female submission hormones were in overdrive. To even *think* rebelliously was a struggle. Stephen the boy hated this with every fiber of his being, but much of his mind was not her own right now, and these hated parts of her own psyche just wanted to do everything her daddy wanted her to do. Besides, it was important to please daddy if she didn't want to be punished, and she wanted to become a boy again. Perhaps she should act like that girl from the supermarket, give her daddy a wink and priss on over there happily for her spanking. She shook her head, trying to fight that incredibly girlish and submissive thought that had invaded her mind. She had to fight it! If she gave in to this, all would be lost. That was what she dreaded most. Her father had warned her many times that if she ever had a female orgasm, she was done for. The transformation would become permanent. So she had to keep enough presence of mind to avoid that much, at least, had to stay more Stephen than Stephanie so that there was no risk.
"Stephanie, now!" Commanded her father as he pointed to his lap, and the rather large tent he was pitching there. As the submissive hormones kicked in she found herself quickly bouncing his way with an "eep!" Soon she was stretched out across her father's lap, her naked ass exposed to him, and her still dripping pussy leaving wet spots on his pants. She could feel his erection digging into her. Her father deliberately dug his maleness into her girlhood, driving home the point of what he had and she lacked, what she had lost, what she was unworthy of. Power. Dominance. Authority. It was utterly humiliating and of course the ultimate emasculation. She'd totally lost all of her male power and replaced it with female vulnerability, and if she had any doubt of that it was erased by knowing how she now aroused her father. His throbbing hardness pressing into her was proof of that, and she knew that vulnerability was what he craved most. What was even worse was that it turned her on, now. His maleness was intoxicating. The power commanding and controlling her, threatening to penetrate and own her, had her pussy responding. She normally didn't feel like this when she became a girl. This latest strain of the virus must be able to alter her mind more than previous strains, and it was making her think and feel like the girl from the supermarket. This was dangerous.
Tears blurred her vision as she felt his hand begin to caress her butt. "My, but that girl did have an incredible ass." said Jonah as he greedily kneaded her flesh. "Well, let's get to it shall we?" Jonah said, and then he gave her ass a swat. "Ow!" she cried. "Oh my, and it's quite the sensitive little ass is it?" taunted Jonah. "But don't think that will earn you any mercy." Then he went to work, giving her swat after swat, but taking his time enough to enjoy it too. Each blow stung like the dickens, but worse than that was that she couldn't deny it was also causing her to get wetter, her breath to quicken every time his hand fell upon her adorable little tushy. After a while she noticed that she'd actually unconsciously lifted her butt into the air for him, putting herself in an even more submissive position. She breathlessly looked back towards him in anticipation. More! She had to have more! It was just too good to resist! But then she had a moment of clarity and remembered the danger, and lowered her butt. She tried to take several calming breaths, but then she gasped when she felt something invade her body! She'd never had anything inside of her before, but now her father was sticking 2 fingers inside of her pussy! She panted and squealed and squirmed to escape lest he push her over the edge, but he held her still. "Be still girl!" He commanded, and she had to obey. "Daddy, please no..." She pleaded.
"Relax, I won't make you cum, Stephanie. I'm just studying the effects of the latest strain of my virus. Certainly I seem to have succeeded in increasing your libido, submission, and femininity. You usually resist a little better than this. I must say I'm proud of myself." He removed his fingers.
"But since you clearly enjoyed that, it will hardly suffice as punishment or apology. You'll have to make it up to me another way." He then lifted Stephanie up and deposited her on the ground on her knees. She looked up at him questioningly, and with worry. He stood and unbuttoned his pants, releasing all ten inches of his manhood, which he had due to a little genetic engineering on himself. Stephanie had never seen it before, though, and looked at him with shock. "Daddy, what-"
"Suck." Commanded Jonah.
Stephen was appalled. No. No way could this be happening. He could not suck his father's cock. He fought the hormones with all his might, and then spoke without even thinking. "Dad, no, please!"