As Kiera slowly drifted asleep, Mira couldn't help but marvel at what a gorgeous girl she'd become. She brushed back her long, raven hair, revealing her gorgeous, plump red lips. They fell open a little as she breathed in her sleep, her chest, and the perfectly pert c-cups on them, rhythmically rising and falling with her breath. Mira smiled. Kiera looked so peaceful and perfect. She grabbed the cup and stretched her long, lithe legs as she tiptoed to the bathroom.
Unbeknownst to Kiera, Mira had no intention of turning her back to a woman. When she'd seen the dainty, ethereal doll Kiera had blossomed into, there was no way she was going to return her to the thoughtless man that she used to be. She didn't want Kiera to get her hands on it, but she also didn't want it to go to waste. As she sat there pondering this, she began to absent-mindedly finger herself. And that's when she got the most brilliant idea.
She lathered a little of the semen all over her body, feeling it sink in and firm up her skin, going from athletic to amateur bodybuilder in seconds. But the majority of the male essence went straight into her pussy.
Mira cried out in pleasure as her body accepted every drop of the glowing blue liquid. It was sucked inwards, absorbed, and turned into energy to fuel her coming transformation. She could feel her ovaries start to grow and shift within her, moving forward and absorbing the rest of her vagina into them. With a pop, they launched themselves outside her body, now encased in a sack that was once her womb. Her clit, too, was undergoing a similar change, growing out of her pussy into a large, mushroom-headed shaft. Mira gasped as her new cock and balls fully formed, air dancing across the sensitive skin for the first time. Her new, massive muscles flexed as she arched her back.
But she had concentrated all of that semen, the essence of manhood itself, into a single organ, and it would not be satisfied with an average, ordinary penis. Mira was about to have a cock worthy of a god.
Mira let out a loud groan as her newly formed genitalia began to grow. Her balls were first; the two stretched her sack painfully as it struggled to keep pace with their expansion. Past eggs, or tennis balls, she ended up with two bowling balls swinging between her legs. She could feel the sperm inside churning, now hyperactive, ready to seek out and breed whomever's pussy she decided to claim. But her shaft, that pillar of male power, was the real crowning jewel of her transformation. It could not stop at a single foot, nor even two. The huge shaft stretched bigger and bigger, blood pumping through the throbbing pole. It twitched higher as the transformation reached its apex - a full three and a half feet of rock-hard, thick, musky cock. The tension released and Mira had to brace herself from the recoil with each phenomenal spurt of cum her dick loosed. She must have shot thirty times, painting the mirror and walls white, clogging up the toilet with her thick, virile seed.
Mira panted as her orgasm faded. She stared down at her softening cock, just half her height at three feet long. The snake almost touched the floor as it hung flaccid, and was as thick as Kiera's leg. It would be impossible to hide. Mira smiled at that, at the knowledge that everyone would see her shaft and every vein on its surface, even tucked down her pant leg. She wanted to see the men's faces as they realized she outclassed them in every way, and the women's as they realized that their men could never compete.
As she ran a hand down the length of her dick, she felt the veins throb and the muscle twitch beneath her fingers. Her balls churned. It felt good, almost unbearably so, but there was also a latent tension that felt like it might spring at any second. But the transformation was over, right?
Before she could continue that line of thought, the patter of soft footsteps from a dainty, doll-like girl appeared outside the bathroom. It seemed that her moans had woken up little Kiera. Mira turned with a cocky smile to face the door as the dainty, black-haired beauty wandered in.
"Mira, what was all that- oh my god!" She froze, gobsmacked at the scene that lay in front of her. Mira smirked.
"Like what you see, my darling?"
"Mira... but you- how? It's so huge..." Mira could see Kiera's mouth watering at the sight and smiled.
"You want some of this, little miss? Come on, you can say you want my big, thick, manly coooock-" Just as she said that, her cock gave a mighty twitch, breaking from her hands. Both girls stared at it in horror as it began to writhe around like a snake possessed. Mira groaned. Something was about to happen... Something big...