...Switch her diaper. She loved the feeling of a diaper around her butt, despite it being small even on her already smaller frame, but felt that this one could have some issues eventually.
She walked out of the bathroom, taking her panties off entirely as she did so, before heading towards Molly. "Hey Molly!" Being only two, Molly looked up at her before responding with a babble, not properly knowing how to talk.
Diana picked the younger girl up, and brought her to the other room. Mom said an hour, so she knew she had time. She set the younger girl down, taking the skirt down.
Molly's diaper was certainly a bit smaller, but Diana pulled it off of her, before sitting down nearby and pulling the wet diaper off of herself. She tried to put on Molly's diaper, and it took a bit of work, being pretty tight.
After Diana managed to get Molly's diaper onto herself, she looked back at Molly's naked crotch. Jeff knew what was coming. "Well... I guess this is why I turned into a diaper in the first place."
Diana pulled Jeff up between Molly's legs, the girl babbling as she felt the wet diaper. The diaper most certainly did not fit, but Diana tried to make it work, pulling it up as far as she could. Molly squirmed a bit at the feeling, but calmed down.
Jeff was now looking back at Diana, seeing the even smaller diaper tight against her waist as she took in how it feels. "This one's even better!" With a giggle she pushed her own one in, enjoying it.