It is ironic, it seems like it is always the pastors kids that behave most poorly. I have also noticed that. Your groups sounds very similar to what we have going on! About 2-3 years ago we started a similar group. The funny thing is that a few years earlier, someone approached us with the idea of us starting a group like that and we thought they were crazy. Never! There was no way we were called to be a part of something like that! Then, God had his way with us. We used to call it a "life group" or "small group", but it is really more like a home Church. We rotate houses every week and take turns leading the conversation and discussion. We spend time together outside of group, like last week, a few of us picked up my first tractor and earlier in the week, we tapped maple trees. It truly feels more like how the Church, described in Acts, is supposed to look like. True community, not just a Sunday morning facade.