Put on the diaper

Erza/Juvia was skeptical about it at first, but with her being in an unfamiliar body, there was no telling what else could happen. She decided to prepare herself for any more embarrassing accidents and go for the diaper. She took the diaper from Lucy and analyzed it: it felt very soft and according to the tag, absorbent. It also said that it would block certain "odors," which was fine with Erza/Juvia.

She put the diaper on Lucy's bed and reached back to remove her messy panties. She pulled them down and immediately, the room started to stink even more. This caused Lucy to cover her nose again. "Pee Yew! I hope this help your pooping problem, cause your butt stinks! I mean just look at those panties!" She exclaimed comically.

Erza/Juvia looked in the seat of the undies and blushed dark red. The entire back half was covered in a thin layer of poop, giving off a horrible stench. She turned to Lucy and said, "sorry about the panties." Lucy only smiled. "It's okay, Juvia. I don't mind at all, it wasnt your fault. Just watch what you eat from now in or my house will stink forever!" She laughed.

Lucy takes the soiled panties from the embarrassed girl and threw them into the garbage. Juvia then slipped in the diaper and secured it around her hips. She found it very soft and comfortable.

What happens next?