My brother married a girl with whom he had one son-unfortunately she had an affair after three years and went on to become pregnant by another man.My brother divorced her and she went on to have a third child with her boyfriend.Two years later she was up to her old tricks and got pregnant with child four by yet another man.My brother pays regular child support deducted from his wages and also sent presents to his son.As he is a soldier serving abroad,he used to send extra money to the girl so that she could buy them on his behalf.That stopped when he found out she was spending the money either on herself or on all the children.He then had his mother buy his son's presents and hand them over but he's just found out she has been selling them,again spending the money on everyone.My brother is the only one paying support-none of the other fathers work,nor does his ex wife.She says she has to treat all her children the same which of course is correct but why should my brother support other peoples children?