The Flumps in Equestria

Perkin, Posie and Pootle were playing in the garden with their skates, and Pootle's wagon. Suddenly, a blue and white swirling thing appeared just next to the vegetable garden.

"What's that?" Perkin asked, pointing to the portal.

"I don't know." Posie replied.

"Maybe it's a portal!" Pootle said. Perkin and Posie shook their heads.

"Oh Pootle, portals don't exist." Posie said. Pootle ignored him and walked up to the portal, sticking a hand through.

"It feels like jelly." He simply said, before stepping into it and disappearing. However, instead of doing the logical thing and getting their parents, Perkin and Posie did the illogical thing, and followed him through the portal.