Ds is 2 1/2. Dss is 11 and his mum stopped contact for over a year until October this year so ds has just 'discovered' his half brother. He's been coming more and more and now comes fri aft to mon morn every week. Ds us totally smitten with him and constantly asks for him on tue, wed and thurs, but I'm not sure where to tell him Dss is as he won't understand the complexities of step families. I've been saying he's 'at school' but ds gets cross and says, 'no not school.' It's not so bad tonight as I can say 'he's coming tomorrow'. But not sure what to say on the other days?