Ok so my dad and my step-mother had been married over 10 years. And when I was about 14 years old I heard her on the phone and it sounded really suspect but hey I was only 14 so I let it go. So then a few years later my dad caught her cheating in a hotel room. Well now she's with the man that she was cheating with... which is fine, but she had a baby somewhere in that process of her cheating. My dad and ex step-mom had a DNA test done and it turns out that my dad indeed fathered this baby aka my little sister. But my ex step mom has been telling my little sister that she has two fathers and two families and that this other man and his family love her more. My sister is only 6 years old. I was on Facebook the other day and I ran across this picture of my little sister on someone else page calling her their sister. Because I think that this other man thinks that he is my sister's dad too. And my step mom was a gold digger so my sister gets double birthdays double Christmas' and she's being taught that life is like this. Should I write this person on Facebook and see what's up with this? Or do you think that will start drama that is not needed? Help

