I didn't get involved with the Greek system when I was in college. I was the type of guy who would've been hazed beyond belief if I had attempted to join a frat, and snubbed by the sorority girls if I attempted to meet or socialize with any of them, but besides that, I never bothered to learn how the system worked. So being a novice in that regard, what exactly is a fraternity "little sister"? Apologizes for my ignorance on this.