"As cute as all this is... how about we grow up again?" Maddy asked. She really just wanted to have boobs for once and didn't want to wait who knows how many years for them to start growing.
Karen asked "OOO!!! Could I grow up!"
"You want to grow up Karen?"
"Yeah! I also wouldn't mind having some arms... maybe some legs, really curious about that whole walking thing."
Ryoka said "Kinda like the little mermaid! Come on why not start by making Karen the grown up?"
Maddy thought and was a little hesitant What would that even look like? "Did you want to be human Karen?"
Karen floated around for a second and said "I think I'd like to try it."
Ryoka said "Then stop floating around, you'll get grounded soon." After getting the imaginary bird jellyfish closer to the ground Maddy made her wish. It all happened more instantaneously then they had imagined. In an instant the Jellyfish bottom morphed into a fleshy bottom as the tentacles joined into legs. Her wings then morphed into arms, and her plumage turned into long dark brown hair. She looked like a long-haired twin of Maddy in that instant, and then her body expanded. Long shapely legs, a wide buttocks, slender frame, and generous breasts showed off that instead of being some fish bird hybrid she was 100% mammal.
"I'm human! And Big!" Karen said happily as she jumped up and down. Maddy and Ryoka both being straight little girls weren't really into that sorta thing, but they couldn't help but stare for a bit till Maddy wished Karen into a dress and proper underwear.
Ryoka asked "Thinking we grow up a little slower."
"Oh definitely" said Maddy a little shaken up "Least neither of us were boys."
"Yeah..." Ryoka said "Wonder why they always act like that though." Maddy smirked a little bit as Ryoka felt different and then felt her crotch as her hair turned into a crew-cut "Hey!" the high-pitched boy complained "I didn't mean I wanted to find out!"
"Hey, if you made fun of my name I can hold you to your word choice. At least for now." Maddy said as she was finding this new version of Ryoka maybe a little cute.