Pinkie Pie held her Birthday party in the Sweet Apple Acres barn one autumn afternoon.

"Surprise Pinkie Pie." the ponies shouted as Pinkie Pie entered the decorated barn.

"Thanks everypony for that surprise party for me." the pink pony told her friends and smiled.

Twilight gave Pinkie Pie a present. That present were a souvenir from the Rainbow Falls village in the mountains above Ponyville. Twilight had been on a vacation in the Rainbow Falls village. Pegasus ponies lived in that mountain village. The only way around for other ponies were a train that traveled up to the Rainbow Falls across a bridge. Back at the party in the barn by the sunny orchards had the three ponies been dancing to the latest hits. Even while the ponies were afraid of balloons, had they been pushing to a very long orange balloon in some minutes. Rarity and Twilight got a  hornboner by playing balloon with Pinkie Pie. While Rarity kissed a bunch of blue round balloons on strings, were Twilight rubbing her horn in Pinkie Pie's butt. The ponies got aroused by hearing the loud balloon sounds. Rarity felt scared of balloons, but her warm horn tickled too by brushing her hot rod against the soft bloated rubber  skin too. Twilight felt relaxed as she later on got her third climax.. Pinkie Pie gave Rarity a long hornjob thereafter. After the balloon play were there dancing, games and cakes with more. The party had first ended at midnight,