She starts feeling bored standing in her room. She didn't realize that when she blinked she got younger. She went to take a step and that's when she realized that she was wearing a diaper. She looked down and she seemed to be really small... She looked into a mirror and saw a four year old staring back at her.
"Hmm... weird" she thought. Then rushed outside to the play area that just appeared. When she left her room it turned into a nursery for a four year old still dependent on diapers.