Wanna PSL?

I'm looking to fill a line where my guy is at the store (any kind of store) and goes to pay only to realize he left his wallet at home. The guy behind him offers to pay for his purchase and things go from there.

I'm looking for those who play pb's that are 30+. I'm open to discussing further details and plotting. Obviously I want this to turn into a romance later down the line. Threading and those who can tag more than once a week, please.