How Do I Use More Than One Domain Name

I have the following Domain Names. durtymindz.net, durtymindzent.com, durtyangels.com, and durtywhyte.com. I have moved all my content from durtymindzent.com over to durtywhyte.com. I want the durtymindzent.com to be used on the durtywhyte.com blog aswell. How do I do this? I am going to do the same for durtyangels.com content and put it on durtywhyte.com.

EDIT: My main Domain for the multisite is durtymindz.net.