Ok, I didn't realize the kids involved were so old. I know ) to live with your GF, but have you given any thought to just continuing to date until all or most of the kids are out of hihh school? Seems to me you risk a couple of things by trying to combine families at this point: 1) the kids resenting the disruption to their lives (moving away from friends at this age is HUGE) and 2) opposite sex teens who aren't related living in the same house? I remember making out with .y new stepbrother when I was fifteen and he stayed with us for a summer.