I'm new to this site but don't really have any friends who are stepparents and I really needed somewhere to vent so here I am. I met my wonderful fiance 2 years ago. He has two children, twins, from a previous relationship who are now 4. We always had a good bond right from the start. But about a year ago my fiance took the children from the BM pending a parenting plan as he was instructed to do from CPS. We've had the kids full time since than. My fiance works everyday all day so basically the children are with me all day every day. Their BM has only come to see them 4 times since they've been here full time. She never has any gas or money to come see them or do anything for them but can go on 3 week vacations with her new boyfriend. She hardly calls them. And when she is around them she favors one over the other quite a bit. All this drama with their mom is stressing on them a lot. They are so young that they can only express how the're feeling so much. And now its getting to the point that their behavior is getting out of control. They dont listen. They are mouthy. Especially my SD. My SS will throw the most epic tantrums. Like Nanny 911 style and will hit things and throw things. They beat the crap out of each other. I could go on and on. It's starting to stress me out to no end. And I just dont really know what to do. I'm not even technically their stepmom. Just their future one. I'm pretty much doing their BM's part is mothering them but at the same time I'm not their BM. They are disciplined for these actions but nothing seems to faze them. Any tips or words of advice would be awesome.