Rainbow Dash was usually the first one Twilight went to for help testing a potion. The mare never backed down from a challange, and what bigger challange than testing an untested, possibly dangerous potion? Not that it was dangerous, Twilight wouldn't do something like that. Just a harmless mind enhancing potion, to help school fillies and colts do better on tests. What could possibly go wrong? How about mind controlling powers and a futa-cock on the fastest, most daring, most awesome mare in all of Ponyville?

Title Changed to reflect lack of hypnotism.

I don't know who the owner of the cover art is.