Heather gazed longingly at the commercial wishing she could be as carefree as the baby that was in it. Suddenly she felt a tingling sensation run through her body as the whole room started to grow bigger. Despite noticing this she continued to stare at the TV unable to look away as she went backward in age, becoming younger with each passing second. Her clothes all but vanished leaving her in just her underwear which was already starting to change. Her panties puffed up turning into a pampers disposable diaper, the same kind the baby had been wearing in the commercial.
When the commercial ended the trance was broken and Heather was able to see that she had somehow become a two year old again. Gazing down at her now much younger body she saw she was naked save for the padding taped to her bottom.
Instead of being angry or upset at the unexpected regression Heather was actually happy with the strange turn of events. Now that she was a baby again she wouldn't have to go to school or do chores and could spend all her time playing. Also she had recently been feeling neglected by her parents who were always looking after her baby brother Derek. But now that she was a baby too they would have to take care of her and spend time with her as well which made her smile.
Looking down at her new infantile attire Heather felt the diaper she was now wearing with her hand. It was so soft and comfy and in her personal opinion way better than panties. She also liked the crinkling noises it made when she made the slightest movement, like a little plastic symphony. Getting excited Heather began to crawl around the couch before dropping down to the floor. She then began to act out the commercial crawling around at first before walking around, the padding stretching to accommodate her every moment without hindering it and at the same time continued to hug her rear.
A few minutes later found Heather lying on her back with her legs spread apart. She had both her hands caressing the front of her diaper as she kicked her legs wildly in the air.
However it was at this point that her mom walked into the room and was surprised to find that her fifteen year old daughter was now a two year old baby.