“I’ll ask you one last time: Are you sure?” Timothy Benson, better known to the general public as Ultiman, the mightiest man alive, was lying naked on the bed he shared with his long-term girlfriend, with whom he had just tied the knot with that evening. Bethany Benson, formerly Bethany Taylor, was gazing hungrily at her new husband’s heavyweight bodybuilder-like, 6’7 frame and fourteen inch erection, nodded. “Alright then,” the foremost hero on Earth said, still nervous, “Whenever you’re ready.”
Bethany, being fifteen inches shorter than her husband with a boyish, skinny frame, could only take the tip of Ultiman’s cock. As much of a sex fiend as she had been both before they met in college and when sleeping around with other men (with his permission, due to his fear of accidentally injuring a non-superpowered sexual partner) afterwards, this was unlike anything she had ever experienced before. Just the tip stretched out her pussy to the point that it hurt, but she persisted. If Tim still doubted she could handle him, then she’d just need to prove that she could.
After a couple awkward minutes, Ultiman came. The force of his first non-masturbation-induced orgasm actually pushed Bethany off his cock, leaving her upper body dangling off the foot of their bed. “Are you okay?” the hero asked, sitting up as his orgasmic haze subsided.
“Don’t worry, I’m fine,” Bethany said as she got off the bed and to her feet, “Never felt better, actually. It’s like I’m-“
Bethany let out a scream of equal parts pleasure and pain as her entire body began to change. It took a little less than two seconds to happen, but Timothy’s super senses allowed him to appreciate it down to the smallest detail, watching as his new wife grew taller and her formerly tiny muscles bulged larger and larger. If she had been wearing any clothing she would have torn right out of it as she bulked up, her abs going from invisible to a clearly defined, rock-hard eight-pack, her shoulders almost reaching her ears, her biceps grew bigger around than most entire humans, her legs got even bigger, her hair lengthened down to her expanding ass, her breasts swelled from small A cups to slightly bigger than her head, and even her clit became larger than most men’s cocks.
For a couple minutes after Bethany’s transformation, both she and Tyler stared at her new body in astonishment. Eventually Bethany dashed to the mirror. She grinned at the realization that she had just mimicked her husband’s bursts of super speed. Flexing her newly formed muscles, she gave Ultiman a “come here” gesture. “Come on.” She paused, realizing her voice was much deeper than it had been previously, but even more feminine if anything. “Show me yours. I want to know exactly how big I am.” She noticed with satisfaction that, as he obeyed, Tyler was rock-hard again, and even dripping small amounts of semen. They found that Bethany was still about an inch shorter than him, but her muscles were noticeably larger. At his wife’s insistence Tyler reluctantly punched her, hitting her abs with a strike that, as little of his strength as it used, was still enough to knock a normal human unconscious instantly. Bethany hardly even felt it. They arm wrestled for over an hour without a clear winner.
“I want more.” Bethany looked down at her husband’s cock, which had been rock hard ever since her transformation. “You like this, don’t you?” Tyler nodded. “Would you like it if I were even bigger? Able to overpower you without breaking a sweat?” Another nod as a drop of cum oozes out of him once again. “Alright then.” In a smooth motion too fast for a human eye to follow, Bethany gripped her husband by the throat with one hand and lifted him so that his cock was pointing directly at her face. She easily took all of it in her mouth and felt Tyler cum again within seconds. Again, Bethany grew, her already superhuman and rapidly improving senses allowing her to take this growth spurt as her biceps grew bigger than Ultiman’s chest, her shoulders swallowed up her neck, her abs became a ten pack, her legs thickened even more and her clit grew slightly larger than her husband’s cock. Now over eight feet tall, her entire body bulging with inhuman amounts of muscle, her senses even sharper and her hair reaching down to the floor, the newborn goddess chuckled. “Imagine the looks on your coworkers faces the next time we see them.”
