She looked up at her handiwork, a huge pudgy head with fat lips and puffed-out cheeks that would be blimps in their own right, connected to an absolutely monstrous air-filled body that curved to the sides and into the distance, out and above her. Whatever he expected from her, she was sure it didn't involve transforming him, in the span of minutes, into a human blimp that could probably be seen from space. He was certainly within eyesight of the people in the city, and considering how swollen his length was he seemed to be enjoying some aspect of it. It takes all kinds, she thought.
Still, maybe it was a little much. She couldn't imagine having this happen and suddenly being as pent up as he appeared to be. Coiling up the hose on the pump, she slid it into the duffel bag at her feet and zipped it shut before shouldering it and standing. "Don't go anywhere," she said to him, giving him a wink. "I'll be right back."
The crowd parted around her as she left, and it was a while before one of them spoke.
"Oh god, is she going to do what I think she's going to do?"
*****
Fifteen minutes later she was outside of the city, in one of the yet-untouched fields surrounding it. One quick shedding of clothes and some more walking later and she was standing in a sea of grass, completely nude. Looking back towards town, she eyeballed him and estimated that he had to be at least a mile and a half across, possibly more. Well, if she got the scale wrong, she thought, she could fix that easily. So she raised her thumb to her mouth, took a deep breath, and blew as hard as she could.
At first nothing happened, but slowly, her cheeks bulged further and further from the rising pressure, growing out to the size of oranges, then grapefruits. There was a bout of squeaking, and shortly thereafter her breasts perked up, suddenly matching her cheeks in size. More squeaks and her rear end and thighs thickened, giving her some more noticeable width. She continued blowing, with no visible changes, but her body began letting out a low, barely audible creaking. It steadily increased in volume, finally reaching a loud crescendo as her entire body shot upward in height.
In the blink of an eye she doubled, then tripled in size, growing taller at an astonishing speed. She swelled upward, beyond the height of trees, buildings, skyscrapers. Those few who didn't have their eyes on the young man suspended overhead would have seen her grow into view in the distance, eclipsing him in size and continuing beyond.
Mere moments after she started blowing herself up she pulled her thumb from her mouth, letting out a gasp. The city - her home - now only came up to her ankles. Physically she looked little different, save for more prominent assets: Her breasts had grown faster than the rest of her, hanging down to her navel, and her hips and backside were full and round, nearly double the width of her waist. More importantly, he seemed to be about the right size for her - or vice versa - coming up to a little over mid-thigh.
She turned and took a step forward, the earth quaking beneath her. Reaching over the outskirts of the city she picked him up with both hands, turning him around so they were face to face. "Surprise."
As swollen as it was, the surprise was readily apparent on his face.
She pivoted on one heel, taking two steps away from the city and further out into the fields. Setting him down, she tugged down his massively overstretched swim pants, letting his colossal length lift up. Giving it a tap she said, "now I know you're enjoying some of this." She licked her lips, spreading her legs as she positioned him underneath her. "But you're *really* going to enjoy this." She lowered herself onto him, straddling his body and letting out a satisfied sigh as he sank into her. "I know I will."
Between the earthquakes and the moaning, nobody really got any sleep that night.