Unfortunately poor Rosalina didn’t get to enjoy being in charge for long. Like she said, magic could be unpredictable and suddenly she found herself being forced sit on a training potty of her own that had just appeared in between her legs at her feet.

“Huh? Dis nod wight…” She said. She had been holding a baby bottle full of enchanted milk that she had been meaning to give to Peach to make her mess, but suddenly it was looking really tempting. She slowly brought it to her lips and took a quick taste. Then she was gulping it down without restraint, hopelessly addicted to it.

“Mmph!” Rosalina said, sucking her bottle. This was really, really bad, if she kept drinking, she’d become a hypermessing baby! But it tasted so good… it was probably too late now anyways so she may as well just finish the bottle…

Rosalina grunted, feeling the pressure build in her bowels. She needed to take her diaper off or else she’d hypermess it! But she didn’t want to give up her bottle and she needed to hold it with both hands.

While she tried to figure out a solution the urge to poop just kept growing and growing. She fidgeted on her potty. She didn’t want to fail her potty training! Brap! It was too late though, already she felt it slipping between her butt cheeks into her waiting diaper.

Blap! Faart! Rosalina whimpered, helplessly pooping again and again and filling her diaper with stinky, squishy mess, just another poopy diaper baby sitting on a training potty like Peach and Daisy.

“I nod supposed to be a baby! Ima big giwl!” She said in between pooping her diaper. Her warm mess squished up against her butt.

“An I tink I did a poopy in my diapie…” She said, drinking her bottle and waiting for someone to come give her the diaper change she so desperately needed.

Art by  sir-dancalot, story by me. Part 1:
http://www.furaffinity.net/view/17480187