Rainbow is bored, like most days she's lazing around and not doing much, though that all changes when she visits Twilight. Twilight has been mixing up a bunch of potions in the quest for knowledge and when Rainbow Dash notices a potion labelled "FAST", she gulps it down without question! Obviously it was a speed potion, right? It couldn't possibly be anything else, what's the worst that could happen?

This story was written for: superfun

Warning, this story contains: Futa, barely legal sluts, pregnancy