The first hint was when Jacob told me that Maryn had bought an expensive "dressy dress". He explained that her Flo-Arts graduating class had decided that they wanted a prom-type dance rather than the traditional graduation party. Maryn was extra excited because it was on her birthday. Don't they look so PURDY?
I, having never been to a prom & knowing that Jacob had not either, asked Maryn what special things might occur at a prom vs. a regular dance. She didn't know because this was her first prom also - she just knew they got to dress up PURDY (please note: these are my words not hers - do not doubt her excellent home plus college educated grammar skills).
So I just had to do the prom mom thing & take their PURDY pictures. Ain't 'cha glad?