I think that Kim is either Kyle’s mother or Megan’s mother? If it’s the same father it could have been incest or a guy seeing both girls?? As there birth certificates have been changed and also Megan’s date of birth it makes things so much harder to trace the birth parents, and also harder to find out if there are any hereditary diseases that could be passed onto their children, a friend of mine was adopted when she was 8 years old, when she had her 3 daughters one of them carries the gene mutation of Duchenne's Muscular Dystrophy, which primarily occurs in boys and is carried by the mother, which her son had with progressive loss of the muscle function starting with the legs when they end up in a wheelchair and eventually die of it, very few boys with this condition live beyond their early 20’s, one family I met 2 of the 3 boys have DMD, it missed the middle son. It’s heartbreaking to watch these kids suffer from the condition, it’s also devastating for the family to see that happen to their child