My children are 'irish twins' - 13 months age gap. At preschool my two played with a little girl and the eldest and this girl are now in reception. The mum has invited eldest for tea for the first time and I'm having a devil of a time telling youngest why the mutual friend at preschool has only invited one of them. Would it be unacceptable to ask her to take them both (two teas here in return obv) as the three of them have never noticed ages until now. Wwyd?