DH has a 4 to be 5 year old daughter. She lived in the home with him 2 years of her life. DH and SD are really close. When he was with the BM she use to go out and party a lot so he would be there with SD and SDS from previous relationship. Every family function DH usually gets SD and one particular Thanksgiving DH went meet the BM to pick up the SD and when they returned to DH parents house, DH had both SD and SDS. He didn't see anything wrong with it since SD wanted her sister to come.