POV: you're babysitting your recently unpotty trained sister, you know she needs a diaper change but she smells bad so you let her keep playing for a little while longer...
She knows how it looks... how infantile and embarrassing it is... a grown woman in a pretty pastel babydoll dress that does nothing to hide her thick white babyish diapers. She also knows how right it feels... like she was never meant to grow up in the first place.