Ok I hope this doesn’t get too confusing but I seriously need advice please. My 25 year old sister who has 4 kids just moved her 65 year old bf into her house. This is hard to digest in itself but especially because this has been going on for over 10 years, which means he’s been grooming her since she was 14. So in my eyes she’s just moved a p******** into her home with her children. I’ve known about this man for awhile but he’s been married for 40 years. Never in a million years did I think he’d actually leave his wife. So now that he has, my only concern is the children. The oldest is 7 and youngest is 4 months. I keep the baby about half the time. That’s just how it’s been, I love her to death but now with this man there, I’m finding it extremely difficult to send the baby back home. My dad is outraged, wants all of her kids out of the home and said I need to just keep the baby, never take her home. My dad will take the oldest and the middle two will go to their dad. Now, even though she’s been with him for 10 years, none of the kids are his since he’s unable to have children of his own. So he has no right to any of them. Up until 6 weeks ago me and my sister were talking all day every day then she just suddenly stopped and I didn’t know why until I showed up at her house last night and he was there. It was the most awkward thing ever and I felt disgusted every time I saw him touch one of the kids . The 7 year old girl has already been molested at 3 years old so I’m so very worried about her as well. I just don’t know what to do, how to approach it with my sister, if I really should just keep the baby like my dad wants me to, if I even have any right to since he’s never been charged. Another thing is he has a niece who accused him of molesting her since she was a little girl but she never pressed charges. Any insight is appreciated. Advice?