Breeding

Millie plunged into her lover and seeped into the warm embrace of her new self. It still didn't feel right, this body full of muscle and power. There was friction between her female heart and her male body, but love blunted the discomfort.

Brad was hers! She had felt every inch of his slim, supple body. Every inch, including his downstairs bits. It was so funny to her. Brad wasn't small by any stretch of the imagination, but he _seemed _so much smaller compared to her. It was weird to think she had a bigger dick than her boyfriend.

Millie had to take a deep breath once she buried herself to the hilt. The sensation on her cock was so damn intense. She nearly exploded right at the start.

"Are you okay?" Brad huffed.

"I'm fine!" Millie grunted through clenched teeth.

She pulled herself out, took a deep breath, and then pushed back in. Her big balls swayed and then slapped gently against the bottoms of Brad's skinny thighs. At first, it felt awkward, but after a few tries, Millie started to get the hang of it. Her body took over, driven by strange male instincts imparted to her by Oonok, her master.

"Oh my God! You are so fucking big!" Brad squealed.

Millie panicked and stopped in her tracks, "I'm sorry! Is it hurting you?"

"Don't stop! Harder! Fuck me, you big, degenerate stud!"

Millie couldn't believe these words were coming out of her sweet boyfriend's mouth. It disturbed her on an emotional level, but it was an open invite for her body. Before she knew it, she was pumping in and out of the boy like a machine. She was barreling towards a cliff at full speed with no intention of stopping.

Miles away, Professor Rebecca Hannigan was doing intense, hands-on research on the female body. So far, her experiments had been incredibly fruitful.

Men were brutish, barbaric creatures, conditioned to dominate everything around them. This extended to the world of sex, and no other move emphasized this barbarism than the act of grabbing a woman by the throat while fucking her raw. The idea of it had always filled Rebecca with disgust and anger. Why couldn't they be normal, she thought. It didn't make sense at the time.

Now it made sense. Rebecca squeezed the girl's throat hard enough to show her who was in charge, but soft enough as to not cut off airflow. Somehow, it made each new thrust into the girl's tight pussy all the more satisfying.

With Rebecca's free hand, she cupped the girl's plump brown tits. She swore they were bigger now than when she had started. They were perfect and pert, and now big enough to exceed the confines of her big, manly handhold.

Rebecca had tried being good. She read all the correct feminist manifestos, went to marches and attended book clubs. What had she gotten for her effort? A tired, unsatisfied body and a girlfriend who was soft-cheating on her.

Three hours as a man had given her more satisfaction than forty three years as a woman. This body. These muscles! This big, meaty cock, and a pair of heavy balls to complement! She felt younger and stronger than she thought imaginable, like a horny teenage boy. The world was her oyster, or rather, her pussy to fuck!

Oonok's daughter-sons had done well, conquering and dominating as was their duty and privilege. The professor especially impressed him. While the pink-haired one still struggled with her gift, the professor fully embraced manhood.

The daughter-sons were getting close. Without realizing it, they were both pumping and breeding at the same time, dominating their respective concubines. Oonok synchronized them, impelling them to thrust hard for one final burst. Their deepened voices shook the walls of their homes as their large balls puckered in. Then came the eruption. Hot, empowered spunk flooded into ****, waiting bodies.

Millie finally settled down and spooned her lover, her cock still buried deep inside of him. She noticed that Brad was twitching and gasping, which she thought was odd, but assumed was part of this whole shabang. She felt as if her brain had been dunked in cold water. She felt exhausted and sleepy and with a deep breath, she drifted off to sleep with her big, burly arms wrapped around her boyfriend. Life was good.

Rebecca withdrew her meaty lance from the girl and looked down at her handiwork.

"Your tits are definitely bigger. Much bigger. Did I do that?"

The others were showing the same changes. Hannah was still twitching and moaning in her sleep, but she now looked ten years younger and much hotter. Rebecca had done that. The thought filled her with unimaginable glee.

"Oh Oonok, my master! I am your son! I will do anything you ask. I'll breed the world for you!"