Foreword: Hello, fellow Degenerates. Welcome to Sister's First Sleepover. If you are of the lower eschelons of degeneracy, I expect you'll find a lot to enjoy in this tale. It's a slow build up, but I promise you it does ramp up. My aim is to make the story feel as believable as possible, whilst also descending into utterly delicious levels of domination and humiliation.    Chapter 1: The Makeup Game Becca closed the fron...