Twins from different fathers

It's possible... Dallas Twins Have Different Dads:

Like most twins, 11-month-old Justin and Jordan have a lot in common. But it’s what they do not have in common that has a lot of people, including their parents, calling them a miracle of science.

“I have twins, but they’re by different fathers,” said Mia Washington.

Washington admits she had an affair that resulted in two babies, born at the same time, fathered by two different men.

According to the paternity test, there’s a 99.999 percent chance Justin and Jordan do not have the same father, and zero percent chance they do. The lab has never seen this type of result, nor do they expect to see it again.

via