DD was invited to a party by Mum A at the nursery. The invite was in her tray, normally these things are to the whole nursery group.
I see Mum B and her dd outside of nursery - she knows Mum A about as well as I do and all our dds play well together - I said 'oh, are you going to dd A's party?'
Mum B looks confused and says she hasn't had an invite. I blithely say 'dd had it stashed down her tray at nursery, dd B's probably done the same'. She laughs, says 'oh, I never think to clear that out', so I think nothing more of it.
Now, party was Saturday, mum B was there with her dd, she drags me off into a corner and whispers 'I don't think mum A actually invited me - there was nothing in dd B's tray so I just assumed she'd lost it and said this to mum A - she looked really awkward for a minute but then invited us along and I was really embarrassed - but then I felt we had to come as I'd more or less invited ourselves along'.
Now, the next time I see Mum A do I let on it was me and my big mouth that created that situation?? Or do I just keep my big mouth shut this time around?