Millie gets her bearings.

At the very instant the first jet of boiling seed erupted out of Millie's newborn manhood, she was truly introduced to her new god. She saw him in the flesh, and what a terrible sight he was. He was a gigantic figure, half man and half beast. The antlers of a stag towered above a face that was sharp, brutal, and impossibly handsome. His muscles glistened in the light of an alien moon, rippling with strength enough to lift mountains above his head. He was the apotheosis of masculinity; a bull of the highest order. The throbbing monstrosity between his muscled thighs was built to breed the world.

Millie basked in the terrifying presence of her new god, knowing she fully belonged to him. She watched as rope after rope of his sacred seed splattered her soul, enmeshing his essence with hers, reshaping her frail, female body in his potent image.

Everything faded away save for the tingly, explosive jolts deep inside Millie's being. She lay in the deep darkness and wrestled with the fundamental transformation of her essence. Nothing would ever be the same.

Eventually, Millie had to open her eyes to the harsh light of the room and the truth it brought with it. She sat up criss-cross applesauce and looked down. There, looking back at her was the thing that would now define her body for the rest of her life.

My God it was big! It was at least a foot long, maybe even longer, and very thick. So thick, in fact, that she had trouble fully gripping it even with her enlarged hands. Even half-deflated, it still felt massive. It tingled to her touch and dribbled hot, glowing white sperm in a thin rope.

Millie stared at her manhood with her mouth gaping open, finding herself at a total loss for words. She had a penis! A ding dong! A freaking dick! Not a tiny little dick either, but a big, meaty, manly one! It was so weird to look at, seeming to blossom from her crotch like a fleshy mushroom of unusual size.

A dizzy spell washed over the young shemale, prompting her to nearly fall forward. She caught herself and looked up on instinct, peering into the full length mirror in the process. What she saw made her gasp.

A stranger's face gazed back at Millie. There were traces of the cutesy, girly, pixie face that remained, but they were so warped as to define her as an entirely new person who just so happened to be related to her. A very handsome, yet effeminate brother, perhaps.

Her face was longer, for one. Like everything else on Millie's body, it had grown. Her once gentle, sloping jaw was now hard and chiseled, terminating in a strong chin. Her cheekbones and brows pushed out to make her countenance more severe. Even her button nose had beefed up, getting its own hard lines and sharp edges. Despite these changes, her skin was as smooth as butter, her eyes big and blue, and her lips soft, pink, and plump.

"This can't be real!"

The dark, handsome voice of a young man spoke in Millie's place. She slapped her hand over her lips and looked around desperately for the source of the voice, then realized how silly she was being.

"My voice, it's deeper!"

Millie sang a few tones at different pitches to try and better understand her new range. At the higher part of the range, she almost sounded like a girl still, but it came off as strained and a little awkward. She realized she sounded a little like Andrea, a trans girl in her class who had recently begun transitioning.

At the deepest part of Millie's new range, her voice was dark and sonorous, filled with commanding power. She watched in the mirror as the thick lump of flesh at the center of her throat danced and bounced. She couldn't help but giggle watching it, the sound coming out as a hearty belly laugh.

The rest of Millie's body was just as shocking. Her arms especially drew her attention. They were huge! So big and burly, with soft skin stretched over rippling muscles. Veins wiggled under the skin like wires for some great machine. The huge, manly arms squeezed her large, womanly breasts together in a strange, gender-bending dance.

Her chest was incredibly broad, winged with big, cannonball-like shoulders. Her thick back and torso securely encased organs that were bigger and more efficient. Millie inhaled to her deepest level, taking in more oxygen in one go than she could with ten breaths previously. Her heart beat like a bass drum. This body was strong -- stronger than the body of any normal human man. As if to test her newfound power, Millie reached under her bed and pulled out her old steamer trunk. Filled with all her stuff, it weighed nearly fifty pounds. With a gentle hefty, Millie lifted it above her head. The trunk felt like it was made of styrofoam.

Millie had always eschewed physical exercise when she could. The idea of big, bulging muscles, whether on her or her future boyfriend, repulsed her. However, now that she felt the power surging in her veins, she had to admit it wasn't the worst thing. There was something intoxicating about being so big and powerful.

Millie set the steamer trunk down and took a closer look at her body. There were so many changes, big and small.

The hair was the biggest change she had yet to notice. Dark hairs had cropped up on her thick forearms and on her lower legs. Her once carefully shaved pubes were now growing into a wilderness above her cock. A lift of her big, meaty arms revealed growths of armpit hair. It was then that Millie noticed her scent had changed. It was muskier now. Not unpleasant.

Finally, gently, Millie reached beneath her newborn cock. Her large palms cupped the heavy swells, each the size of a baseball. A gentle tingle ran through her body as she did so. It kind of felt good to hold them, even if their existence made her head spin.

"I have balls," she said simply.

Millie could practically feel her testicles pumping out sperm cells by the millions. Her god and master had remade her in his image, and that image was male. He had taken her womanhood and twisted it into these big, ripe, virile things. He had given her burly, manly arms, and big, bouncy tits, and a body that was a perfect mix of girl and boy. Now she was his acolyte. His voice had receded from her mind, but his purpose was clearer than ever. That purpose terrified her, but she was helpless to resist it.

Millie gave her head a shake and tried to clear her mind. She needed to focus on the practical. The room was an absolute mess. Between the remains of the ritual and her male eruption, the whole place was a ticking time bomb. If Jada found out about this, she would kill Millie.

Very quickly, Millie sopped up her sperm with her bath towel and swept up the chalk. Soon enough, the room was right as rain save for the lingering musk of sweat and seed.

Next came the other, bigger problem. Clothing. She didn't know exactly how much she had grown, but she had to guess she was at least a foot taller and more than a hundred pounds heavier. The last strips of her tank top hung in tatters over her muscles. She ripped them off of her as if they were made of tissue paper and tossed them in the trash. She pulled her once loose sweatpants up. The garment was hopelessly tight, but it fit in the roughest definition of the word, leaving her bulging calves exposed. Her crotch bulge left little to the imagination. Still, it would have to do for now. These were her loosest pants.

A men's XL t-shirt that once came down to Millie's knees now barely covered her bellybutton. Her huge arms strained the sleeves to breaking. Still, it fit.

"I guess I'll just need a new wardrobe."

It all worked out. She needed to get out of the dorm soon before Jada came back. She wasn't ready to face her roommate yet. What would the girl say if she saw Millie like this? What would she say if she knew why Millie was like this. No, there would be time to explain everything, but Millie wasn't ready.

She rushed out of her dorm and stepped into the cool, misty air of the night. The rain felt lovely on her hot, sweaty body. The department store was two miles off campus. Millie had only made the journey by foot once before, and it left her wiped for the next two days. However, as she walked, her steps powered by superhuman muscles, she felt like she could walk all the way around the world. Maybe this change wasn't so bad. For once in her life, she had power, and she planned on using it.