Billie is an elephant girl who needs constant babysitting. Despite her young age, her body has rapidly developed intense needs and urges, and she fucks and breeds every babysitter that tries to take care of her.
The new girl was an absolute knockout. She was a young, slender brunette named Emily, with a cute button nose and a sweet smile. Her body was lithe and toned, with narrow shoulders and a waist so thin she could be circled by both hands. This was in contrast to Billie's big beautiful belly, a large dome of smooth gray flesh.
Despite her body, the most alluring part of Emily was her face. She had a pair of sparkling blue eyes and a set of pouty lips, and her mouth hung open as she stared at the enormous gray girl cock that swung between Billie's legs.
"Oh... wow," Emily stuttered, unable to take her eyes off the enormous dong. It was almost as thick as her entire arm, and longer than a dinner plate. Even if it were only half hard, the massive member still hung down between the elephant's legs and swayed like a pendulum.
Billie's dick throbbed, growing more and more erect, until the fat elephant girl began to sweat with excitement. A thick bush of red pubic hair began to grow over her crotch and in her armpits. Her massive gray ass cheeks clenched and relaxed, her cock pulsating with lust.
Emily had been warned about the elephant's libido and unusual body, but the sight still took her aback. Billie was only six years old, and was already more well-endowed than most porn stars. The babysitter gulped nervously and tried not to stare.
"Do you want me to help you, uh, get ready for bed?" Emily asked.
Billie shook her head and grinned. "I need you to give me a bath."
Emily sighed. That was always part of the job, apparently. Billie was a big girl, but she needed regular baths.
"Well, then, let's get started."
Emily walked over to the bathroom, followed by a waddling elephant girl. She ran the water, and when she turned around, Billie was standing right behind her, pressing her big gut against Emily. The elephant's tits were bigger than her own head, and her cock was now fully erect. It looked as though it was throbbing with need, the big elephant dick standing tall and firm.
"Uh, why don't you get in?" Emily said.
Billie grinned and stepped into the bathtub. The elephant was much too large to sit in it, so she just stood there while Emily fetched the soap.
The babysitter knelt on the tile floor and began to lather up Billie's belly and chest. Her breasts were so huge that Emily couldn't even fit her hands around them. Instead, she used the bar of soap and scrubbed in small circles.
Billie's nipples hardened, and the elephant's cock twitched with excitement. Her cockhead was leaking pre-cum, and it was splashing all over the inside of the tub.
Emily tried to ignore the elephant's erection and continued washing her. She lathered up the big, gray belly, and moved down toward her groin. As the suds washed away, she was faced with the huge, throbbing elephant dick, which was leaking precum all over her hands.
"Sorry," Emily said.
"Don't be," Billie said.
Emily swallowed and reached up to Billie's massive, gray balls. She grabbed the base of the elephant's shaft and stroked the soap up and down the thick member. Billie shivered with pleasure. She rubbed her big plump gut and concentrated on making Emily addicted to her fat stomach.
"Mmm..." Billie moaned.
Emily's hand jerked Billie's huge cock. Her wrist ached as the elephant's cock throbbed in her grip.
Billie's huge gray belly rippled and flexed. It had an almost teardrop shape. It was perfectly smooth, plump and round, and was the most beautiful belly Emily had ever seen. She leaned forward and pressed her face against Billie's fat tummy.
Billie grinned as the babysitter kissed her stomach. She knew it would be impossible for her to resist. She focused on her own stomach and concentrated on getting Emily obsessed with it.
"Oh, fuck!" Emily cried, as she rubbed her face against the elephant's stomach. It was the most amazing feeling she had ever experienced. It felt so good that she almost came from the sensation.
She pressed her face deeper into the fat, gray belly. She inhaled deeply, smelling the strong, musky scent of elephant.
"Oh, God," Emily whimpered.
Billie grinned.
She continued to kiss and lick and suck and rub her face all over the big, gray belly. She had never felt this way before. It was as if she was under some kind of spell.
Suddenly, Emily pulled back, shock and horror in her eyes. She knew she was addicted to Billie's big gray girl gut. Panting hard, Emily pulled back, staring at that swollen stomach even as she withdrew from the bathroom. She wasn't able to get Billie's belly out of her mind even as she raced downstairs, put on her jacket, and rushed home.
***

The next day at work, Emily was still obsessing over Billie's gut. Whenever she saw any of her coworkers, she found herself looking at their stomachs and wishing they were as big and perfect as Billie's.
She couldn't stop thinking about how soft and plump and wonderful Billie's stomach had felt. She had never felt anything so good. She could still smell the elephant's unique scent, and it made her pussy wet. Some of her coworkers commented on her smell, though they complimented her on it, and found themselves stroking their stomachs absentmindedly. As the day progressed, Emily noticed that her coworker's skin were smoother, slightly more gray, and they all had a bit more paunch to them.
Emily's boss walked up to her cubicle and stood in the opening with a bored expression. Emily didn't look at her face; instead, she stared at the big, plump, gray belly the woman now sported. The large soft teardrop-shaped dome protruded from her blouse and made the buttons strain.
"So, uh, what's up?" Emily said.
"Just wondering how things are going," her boss replied. "Are you feeling okay? You seem kind of out of it today." The woman rubbed her belly, which expanded slightly larger.
"I'm fine, I just, uh..." Emily trailed off. She didn't know what to say. The more she stared at her boss's growing gray gut, the more she was turned on. Her boss didn't seem to notice anything amiss, as if she had always had such a large and sexy stomach.
Emily reached up and touched her boss's big, fat, round, gray, pregnant-looking belly. It felt warm and soft and smooth. Her boss casually began to belch and fart with musky, good-smelling gas. Her stomach swelled larger, and her breasts did as well, as her suit stretched to accommodate her expanding figure.
"Ooh, that feels good," her boss said.
Emily's eyes glazed over, and she began to stroke and rub her boss's big, round belly. She massaged the swollen gray flesh, and her boss let out another burp, which was followed by a loud fart.
Her boss's suit tore open, revealing her huge, gray, pregnant belly. Emily kept rubbing the big, round belly, feeling its smooth, warm skin, and her boss let out a contented sigh.
"That feels nice," her boss said, smiling.
Emily didn't hear her. All she could think about was rubbing her face against the big, round, fat, gray belly.
Her boss smiled, her belly growing fatter. Emily kept rubbing, her eyes fixed on her boss's swollen belly.
Suddenly, her boss's pants split open, and a huge, gray elephant's dick and balls emerged from her crotch.
Emily gasped in shock and awe, and kept rubbing her boss's stomach. The big, fat, pregnant-looking gray elephant belly grew fatter and wider. Her boss moaned, and her dick swelled and grew. It was almost as long as Emily's arm, and thicker than her wrist. She looked up at her boss's face and saw she had grown a second head that looked like Billie. Both heads smiled and belched, and never stopped belching, no longer needing to breath.
"Ooh, yeah," both heads moaned.
Emily kept rubbing the big, round belly. She didn't know what else to do. She didn't know what was happening. All she could do was keep rubbing the big, round, fat, gray pregnant belly.
The other employees noticed the commotion and rushed to the cubicle, and they all gasped in shock and awe. They were all wearing tighter clothes now, and their skin had become grayer. One by one, they fell under Billie's influence and grew elephant dicks.