I can here the conversation now:

Welcome back from your nine and a half month deployment to Iraq, honey! I have a surprise for you - meet your new son Cuckholdious Latreen! I probably should have told you that my great grandfather was black and some of my cousins turned out black because of this. It's a recessive gene so maybe there's some black in you as well...

You laugh, but I had a girl working for me that did just that. That is a no shitter. She was engaged to wealthy car dealer in her home state of GA while screwing one of the guys in my unit. That sprog turned out black as shit and she convinced her fiance that her great GM was black. His dumb ass bought it and married her anyway. That tar baby came out the spitting image of it's monkey daddy.