"Okay" Rachel said in a slightly sarcastic tone and then in a more menacing way "it'll cost you". Cassie needed to go and couldn't hold it much longer "pwease help" she sadly said.
"Right then, say transform" Rachel commanded Cassie, "transform or dare". After the response of transform Rachel said "your transformation is to lose half of your control over poos, including your ability to wipe yourself".
Cassie was in shock, but not for long as she felt her poop start to poke out and ran to the toilet, Rachel in tow behind her. Rachel helped to undress Cassie and sat her down on the toilet, standing outside the cubicle. Cassie finished and attempted to wipe herself but couldn't figure it out, at one point wiping one of her cheeks with a poo stained price of paper.
"Need some help" Rachel asked sarcastically, "pwease" was the crying lisping reply. Rachel entered and helped Cassie clean up, then she dressed her and helped her out. She then told her to say 'I used the toilet like a big girl' out loud as she left or "I'll give you another transformation". Cassie complied and everyone stared at her then Rachel told her "well done, but we don't say that in public".