After telling her how he felt, Dipper was surprised that Twilight actually felt the same way. However, their happiness was cut short when a mysterious force pulled Dipper and everyone who came with him to Equestria back to Gravity Falls.

While the prologue takes place at the very end of the show, the rest of this story takes place 5 years after the events of "Twilight Sparkle and Dipper Pines: Epic Adventures", an official crossover show between MLP and Gravity Falls, or at least what was shown, since it was cancelled during the second season. If you're interested in learning more, the only website I was able to find any info on the show is here: https://scratchpad.fandom.com/wiki/Twilight_Sparkle_and_Dipper_Pines_Epic_Adventures.

This is my first story, so read with caution. This will probably suck. Also, it contains Twidip if that wasn't obvious.

My Little Pony: Friendship is Magic is owned by Hasbro
Gravity Falls is owned by Disney
Twilight Sparkle and Dipper Pines: Epic Adventures is owned by Hasbro, possibly by Disney