This story is a sequel to Roadtrip
The cracks between our worlds are opening. Deciding they can't remain hidden any longer, the princesses decide to introduce Equestria to the human planet at the most logical place on Earth: BronyCon.
This creates many problems, particularly for one couple and their Fiat.
What's harder than getting four pregnant alicorns into a Fiat? Getting four alicorns pregnant in a Fiat!
-Biker Dash