This is more AIBU on dd's behalf
Dd has been invited somewhere by a friend of ours who has a dd same age (10) dh asked ss, a teen (14) if he wanted to come which he said yes to.
This wasn't our day to have him it was a random invite due to it being half term.
Dd is now really upset as she said ss will ruin it by teasing them and generally annoying them the whole time, it's not the sort of activity where they can all go off, they will be together for the duration. Ss does have a tendency to do this, obviously he is a boy, a teen etc etc its what they do. But dd is annoyed that he is essentially crashing her playdate. Also i have to say she has only voiced this to me privately, she wouldn't say it to him as wouldn't want to hurt his feelings. In case anyone thinks she is spoiled, she isn't at all.
I personally have said its ok i will just tell him beforehand that he isn't allowed to mess around with you both. But of course i do understand where she is coming from, if ss and his friend arranged a playdate and i just told them dd was coming without asking they wouldnt like it.
If anything the part i am more concerned about is dh not asking our friend if it's ok if he comes as he will be looking after them. But its dh's friend and he says its fine.
Thoughts?