WHAT, heteropaternal superfecundation was Mommy's fault

A Texas mother of twins got the shock of her life when doctors revealed that her 11-month-old boys do not have the same father.

Mia Washington decided to get some expert advice when she and her partner noticed that twins Justin and Jordan had different facial features.

Paternity tests then revealed what had happened — two eggs had been fertilized by two different sperm and there was a 99.99% chance the twins had different dads.

Doctors at the DNA lab in Dallas, Texas had never seen such a result.

Washington later admitted she had had an affair and got pregnant by two different men at the same time.

When twins have two fathers, doctors call it heteropaternal superfecundation, according to myfoxdfw.com. It's so rare — there are only a handful of documented cases in the world.

http://www.foxnews.com/story/0,2933,520524,00.html