Princess Twilight Sparkle has a problem: she's possessed by a question. It came from a silly little book. Now, after a week of poor sleep, Twilight relents. She has to answer this question, even if it kills her.

Okay, so it won't kill her, but Twilight is going to have to violate one of the biggest pony taboos in existence to do so. That's okay. It's for science!

original author wille179