No. He has no right. Tell the girls that it's more expensive to live in a house that has them in it, that you buy more food, need a larger home, buy more clothes and have to keep the utilities (a/c and telephones, for example) working harder than if you were just one person in the house. Tell them that this is what child support is for, not for gifts for them, not for you to have to make an accounting, item by item, of what you spend it on. Without the support, they'd not have that nice house they live in, they'd have lived in a much smaller place in a not-so-nice neighborhood and their lives wouldn't have been so great all around. If the state wanted child support to be all about giving them THINGS, while letting them live in a bad neighborhood because that was all thier mother could afford, then it wouldn't give the mother a lump sum without asking for an accounting, would it?