Hi i am a single full time father of twins of 3 and a half,one boy and one girl.They dont see their mum due to the fact shes an addict and was wondering what to say to them about their mum as even now kids at nursery ask me where their mum is so no doubt they are being asked to.As all the kids get picked up by their mummies and they get picked up by me..I have been dreading this question and i know its only going to get worse in years to come any ideas would be much appreciated thanx