Curate, connect, and discover
FiddEmmaStan AU where Emma May moved to Gravity Falls around the same time Stan took Ford's identity. She divorces Fiddleford & dumps him on Stan's (newly acquired) porch. While Stan is trying to fix the portal and run the mystery shack, and a recovering Fiddleford builds lots of robots for the mystery shack & does upkeep, Emma is raising Tate & having weekly Wine Nights with Stan (she finds out the truth of him not being Ford & they kinda become best friends about it). Fiddleford & Emma May fall for Stanley separately and accidentally fall back in love with each other along the way (Stan is Tate's favourite parent during the like 3 years this takes). Emma ends up moving into the mystery shack & with no prior science knowledge takes up helping fix the portal & gives some of the tours. Stan is having huge amounts of Bi Panic cause omg he's fallen for Emma May & Fiddleford and their son now calls him Dad (Stan balled his eyes put the first time) but they seem to be working stuff out and he shouldn't get in the way of that??? Anyway Fiddleford and Emma co-seduce Stanley. It works. The relationship is surprisingly healthy. They get Poly Married (it's Gravity Falls) but it's Emma & Fidds both being married to Stanley - when Emma May is annoyed with Fiddleford she describes him as her husband-in-law.
Mabel & Dipper visit Gravity Falls for the summer and are greeted by their Grunkle Stan, Grauntie Emma May, Grunkle Fidds & Cousin Tate