Adding Multipile Lookup Field Values to Parent Record

I am trying to add the ability to add more than one reference lookup field value to a parent record.  I have two tables "Notes" and "Code_Violations".  When I click on the "Create a New Note" button the Note form opens.  On it there is the "Code - Violation" lookup field displaying the code violation options from the "Code_Violaitons" table.  I would like the ability to add multiple code violations to one Note record if possible.  Maybe, if possible, when I select the first one a new Code-Violation lookup field displays ready to add another if desired?