"Mommy!" she shrieked.
Olive turned to look at her Amazonian daughter. Of course, she didn't see anything wrong with it. Her daughter had always been that way, after all. "What is it, dear?"
"Why is my ice cream still small?"
Olive sighed. "I told you, Effie, it's because you're not a grown-up yet."
"But I am grown up," Effie protested. "Look!" She flexed her large biceps and squeezed her tits, making them look even larger. Her mother swatted her hand away.
"Effie! Don't do that in public!"
"Why not?"
"Because it's not proper!" Olive sighed, running a hand down her face. Why was she, a single mother, the one who had to deal with this child? "Look, Effie, when I say I'm grown-up, I mean that I'm an adult. You're still young, and lots of ice cream isn't good for growing girls. When you're an adult, you can have all the ice cream you want."
Effie narrowed her eyes. The wishing coin was clutched in her hand. "Fine, then. I wish I was an adult, all grown up!"
First, her face matures, baby fat melting away to reveal the face of a gorgeous woman. Her long blonde hair reformed itself into a bun at the back of her neck, and glasses placed themselves in front of her sparkling blue eyes. Her mind matured too, now 20 years old to match. Of course, Olive hadn't changed in age, and new memories began filtering across her mind, telling her she was now her adoptive older sister. The 26-year-old still acted like her mother, sometimes, as she'd filled in that gap when their foster home couldn't. Effie found herself oddly comforted, even though she knew this was a life she hadn't lived.
However, the changes would not stop there. After all, a girl who was 6'2 at age 4 would grow a lot through puberty.
Her height was again the first thing to change. From 6'2, she shot up foot after foot, ending at a staggering 10'3. She towered over Olive who was just over half her height, head at hip height. Of course, she wasn't even half the size of Effie, just one of her calves had become wider than her entire body. Her whole body was even thicker than before, with tonnes of muscle piled up high over every inch of her body. Veins like steel cables crossed her skin, pulsing with every beat of her magnificent heart.
Of course, she hadn't been left out of some of the other perks of female puberty. Her hips had gained a nice coat of soft fat and widened enough that she could birth a truck. Her waist slimmed, though still held an intimidating 8-pack of abs, and her ass was drop-dead gorgeous, two globes of hard muscle covered by kilos of squishy fat that jiggled with every sway of her hips. Her vagina was thick and swollen, creating a large camel toe as it tried to swallow her skimpy, tiny g-string. And on her chest hung her crowning jewels, two P-cup breasts stood proud, no sag in sight. Held up by pectorals that only accentuated their size, they half hung out of her skimpy little sundress, with nipples as thick and stiff as a man's cock tenting the fabric. She couldn't help but spare a hand to tweak them, shivering at the sensation.
Now, Effie was aware of the magnitude of her wish, and the power the coin she held in her hand possessed. Her brain could comprehend just how much her errant wishes could change reality. But, looking down at her amazing body, she couldn't find it in herself to criticise her 4-year-old self. She looked stunning.
"Oh, Effie, you have to tell me where you got that dress, it looks gorgeous on you!" Effie was startled back to reality by Olive, who was looking up at her with adoration. Was it her imagination, or was her adoptive sister's eyes wandering beyond the yellow, floral fabric to her cavernous cleavage?
"Oh, it was custom made, of course, for my size," she found herself saying. Her brain filled in the gaps in her knowledge easily. "But it was a design from that new designer shop, Nora Shore, I think it was? I'll show you it later, sis."
"Of course!" Then, Olive's phone beeped. Her face fell as she read the message. "It's Luke. He says that I'm needed at work."
"But it's your day off!"
Olive gave a tight-lipped smile. It didn't reach her eyes. "Yeah, but you know how he is. If he says jump, I'm supposed to say 'How high?'. It sucks but it's better than being out of a job." She grabbed her things and placed a kiss on Effie's bare, muscular thigh. "Thanks for inviting me out, Ef. Enjoy your ice cream."
And as she strode away, Effie looked down at her double scoops of chocolate ice cream.