Thank you for your post mildez. Its nice to hear other perspectives. There is very little (read no) chance of another child.

Thanks PP

Butterfly Dawn thank you also, he has a baby doll that he isnt overly interested in playing with. He is fairly restricted with what he can have pet wise but we have a bunny that thinks its a dog and is thus very affectionate, but it doesnt replace his wanting of a sibling.

I've started taking him around to his 18 month of twin cousins a bit more to see if that helps, perhaps it is loneliness of not having a younger playmate here? Im not sure what else to do, say or try really.