Out of the woods (Pinescone)

This is (obviously) an AU (Alternative Universe).
(I'm not quite good at writing funny stuff, but I'm good at writing things full of feels and cute couple moments, and this is a warning, I guess, I'm not sure)
***
Back to Gravity Falls, now with fourteen years old, after that horrible incident with well, I guess everybody knows about it, but in case you are wondering, the horrible awkward incident where Bill tried to take over the world and turn it into a big freak party, which is obviously, not weird at all.
Since Stan and Ford are back from their adventure, the twins are finally back to the weirdest town in the world.
Of course, it wouldn't be Gravity Falls if there wasn't a portal opening, a portal that had already opened in other places in the world, and that was now, in Gravity Falls.
As if it wasn't enough, an old enemy of the Pines family might be back, way worse and way more terrifying.