I love how Dipper x Pacifica fics get so inventive; they're like a
playground for writers who want to flip expectations from 'Gravity Falls' on their heads. The biggest trope I keep running into is
enemies-to-lovers — it’s practically a staple. Writers take Pacifica's privileged, polished facade and force collisions with Dipper’s awkward, earnest detective energy, and the slow thaw is delicious to watch. Another common thread is
redemption arcs: Pacifica shedding her family’s baggage, learning empathy, and Dipper helping ground her without turning into a messiah. That can lean dramatic or quietly tender, depending on the story.
I also see lots of slow-burn/pining fics where neither admits feelings for ages; the tension is the whole point. Role-reversal or AU tropes are huge too — Pacifica as the reluctant
rebel or Dipper-aged-up as a brooding tutor, plus royal-AU or boarding-school settings that let authors explore class differences in new ways. Slice-of-life domestic fics that imagine them years later, living together and arguing about breakfast cereal, are surprisingly comforting.
What I personally enjoy most is when writers respect both characters’ growth from 'Gravity Falls' and let their chemistry emerge naturally. The best ones balance humor and heart, and I always come away wishing for more cozy scenes between them.