This story is a sequel to Sunset Shimmer's Unpleasant Discovery

Twilight Sparkle returns to the human world intending to take a short vacation from her princessly duties, and to catch up with her non-Equestrian friends. One sleepover at Pinkie Pie’s house later, Twilight comes to learn something fascinating—and horrifying—about her very human body.

This story now has a spiritual prequel: Sunset Shimmer's Unpleasant Discovery, by Bootsy Slickmane, rated [mature]. While mine pokes fun at the characters, his offers the more serious take.

Preread by Stiggerzz and Majin Syeekoh.

Rated Teen for sexual references.

Featured on:
Fimfiction.net Feature Box (11/01/2014)

As Princess Cadance and Shining Armor leave to spend their wedding night, Twilight Sparkle and her friends get to kick back and relax after a successful wedding. And just as she's getting comfortable, the conversation veers onto the subject of... sex. And before she knows it, Twilight faces the terrifying prospect of having to tell her friends about her first time. A special, magical, enchanted moment.

Some unicorn spells should have never been devised...