My stepdaughter is 5 y/o, she has known me for over a year now, my partner has 50/50 custody and we all live together- she has her own bedroom in my house etc. I have a 2 y/o daughter myself and we're an extremely happy family. The girls love each other and call each other sisters, genuinely I feel very lucky to have made such a bond with her and I love the absolute bones of her she is wonderful. The other day she asked out of the blue if she could call me mummy. I said no (because her mummy wouldn't like it.) and she dropped it for a bit but often comes back to it, calling me mummy whenever she fancies etc. I have said at least wait until I marry your father, but I don't think it's going away in her head. I personally think it's wonderful she feels that close to me. I certainly consider her my daughter, I'm a stay at home mum and take care of her by myself often, but as a birth mother myself I'm extremely wary of how her mum will feel. She's not exactly the kind of person who would be ok with whatever makes her daughter happy. She is in fact the opposite of that, and would certainly kick up an almighty storm. The other day she was in my house and there was a funny picture of me and stepdaughter on the wall and she lost it and started swearing at my partner in front of the kids that it ought to be her in the picture... any suggestions as to what alternative she could call me? I feel like she really doesn't want to call me by my name any more so I need to give her some sort of title idea to side step the issue!