While there are no reported cases of brothers or sisters being given visitation, a strong argument could be made that it would be in the best interest of the child. The court has the power to deny visitation. Normally the court will only stop visitation for a certain time or until a certain task is performed. For example, the court has previously stayed visitation until the parent met their financial obligation. If your spouse should deny you court ordered visitation, you first file for a modification of visitation for a more definite schedule, before filing a contempt action.
Many parents feel they have the right to stop paying child support, but they are wrong.
Withholding of child support will only get you in trouble and possibly arrested. When the Custody Order Agreement is Violated People go into courthouses everyday telling clerks that the parent has not returned the child at the scheduled time following visitation and they don't know what to do. If the child has actually been stolen by the other parent you should report this to your local police department immediately. The FBI can be called in to find the fugitive parent and the child as well. The noncustodial parent must be ready to prove this clear and present danger and they are required by Georgia law to file a petition within 96 hours.