That would definitely prove adultery . You would need to specifically deny paternity in your petition for divorce and have paternity tests ordered by the court . If paternity is disproven , you would not be required to pay child support . Some courts will not allow paternity testing depending on the age of the children and the length of the marriage assuming that it's not in " the best interest of the children " .
-------------------- Never let your sense of morals get in the way of doing what's right. Isaac Asimov