Originally posted by: montanafan
You need to tell your parents that you know that your little sister doesn't understand that your friends are laughing at her and not with her, but they need to realize that some day, after many years of therapy for her low self-esteem that has resulted in several failed relationships with men who physically and emotionally abused her, she will have a breakthrough when her long supressed memories of the emotional abuse she suffered by the actions of your friends at this moment surfaces and she realizes that the it was the root cause of all the psychological trauma in her adult life which could have been prevented if they, her parents, had not neglected her emotional well-being in her time of need.
But I could be wrong.