A/N

Gravity Falls x Adventure Time

Dipper and Mabel are exploring, and during that time they find the portal, Dipper ends up in The Land Of Ooo *Finn's World*

This is after the end of the episode
"Come Along With Me"
And the next summer after the twins left.

There will be a Bipper appearance, but no billdip.

13 year old Dipper and Mabel

17 year old Finn

There will be NO shipping between anyone in Finn's world and anyone in Dipper's world. Except for canon ships (such as Bubblegum x Marceline) and Deputy Blubs x Officer Durland, I will not be adding any ships unless I see fit or if I am pressured to.

NO SMUT