If you have been charged with domestic assault upon your sister where bith of you are minors, most likely the charge against you will be held in juvenile court since you are a minor. If you do not have a criminal defense attorney representing you at this point in time, you should retain one.As to the ultimate consequence as ti the charge against you assuming you plead guilty or are convicted of the crime, I have no idea what sentence will be imposed against you by the court. Most likely you will not receive any jail time if convicted but may be fined and ordered to anger management classes for attendance.