Twilight needs the idea of a new spell for her next examination, but she can't come up with it for herself.

She tries a mind-blowing concept, caress her own horn in order to estimulate her brain and ejaculate an idea.

Soon she realizes it's not as easy as she thought.

This is inspired by the many "Pony X Discovers/Makes/Uses a Y" stories that have proliferated lately, and especially from Fluttershy Discovers A Cheerleader Outfit by SwiperTheFox

[img]http://img255.imageshack.us/img255/5900/lema.jpg[/img]