You had recently made friends with a girl in your class, Madoka Kaname. She was a kind girl that meant well to everyone and wanted to help others at any time. Recently though, she came up to you and asked if you wanted to come to her house for a 'little playdate'. You seemed confused at first, but agreed to come to her house. After school, you made your way over, where you're greeted by Madoka.

'Oh, thank you so much for coming! Come over here.'

You nod, however...you see Madoka rushing towards a changing mat with diapers next to it, as well as another changing mat as well. Her mother Junko was also by it, next to Madoka, who was smiling.

'It's nice to see you. Over here, please.'

...perhaps you'd taken 'little' in the wrong context...