Wanna see my belly?

That's a reference to the way Aunt Laura would try to make friends when she was little. She had an outtie bellybutton, which pretty much makes her so very special that everyone would want to be her friend, so if she'd meet a kid at the park she had the easy pick-up like "I'm Laura. Wanna see my bellly?"
Anyway, she's got an innie (and a flattie) now for a belly, and she's working it in a bellydancing troupe. Mom got to go see her with Grandma and Grandpa Mohr after Ernie's birthday party.