Mamma66, we have been in exactly the same position as you so I completely understand the feelings of responsibility you have to look after your GCs emotional and physical welfare. I understand the exhaustion too. We were scared to involve SS but they were involved at one point and they said they were happy for the children to live with us is we could manage, and aren't in the habit of removing children from homes if it can be avoided. We were still very afraid it could happen though. Like your GC, ours get on so well together we didn't want them split up. Like yours, they said they didn't want to live with one parent. All I can offer you is that if you can struggle on, like others have said, the children do get easier to look after as they get older. In the meantime, talk to relatives/friends to see if they can look after the children for even a couple of hours when they're with you. I think you need to talk to the children's parents to see about them paying for some help for you, so that you can continue to support them all. You don't have to be unkind, just honest about your needs being met, not just theirs. Your stepson should certainly be told that this will be an expectation when he gets his inheritance. They are his children and his responsibility. If SS eventually do get involved, make sure you let them know that you still want to be involved in the children's futures, and having them for weekends etc. I'm sure the children's teacher's will be happy to support you in this area too, as they will be aware how much they love you and indeed what their personal circumstances are. Children tell their teachers a lot! I really feel for you, and wish you all the best in getting the help you need. Don't be afraid to ask for it. Sometimes the fear is worse than the reality.