"Bag of Bolts" by [currently Anonymous]
G, gen, 7K words
Natalie, Tessa, Duncan, OCs
Summary: Natalie attends an ME convention at a hotel where Tessa is installing a sculpture. Danger. Bonding. Pie.
More like Yuletide than FKFicFest, the HLH_Shortcuts prompt slates seem to be pretty loose suggestions. I didn't specifically request (or imagine) this scenario. All credit to the author for the happy surprise.
Of both series, I do dearly love their first seasons, when motivations were clear and rich, and triumphant possibilities endless. Their first seasons, I rewatch just for fun, just for joy.